feathers

Summary

Top Publications

  1. ncbi Global application of stable hydrogen and oxygen isotopes to wildlife forensics
    Gabriel J Bowen
    Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT 84112, USA
    Oecologia 143:337-48. 2005
  2. pmc Characterization of Japanese quail yellow as a genomic deletion upstream of the avian homolog of the mammalian ASIP (agouti) gene
    Nicola J Nadeau
    Department of Zoology, University of Cambridge, Cambridge, United Kingdom
    Genetics 178:777-86. 2008
  3. ncbi No evidence for general condition-dependence of structural plumage colour in blue tits: an experiment
    A Peters
    Sexual Signals Group, Max Planck Institute for Ornithology, Vogelwarte Radolfzell, Radolfzell, Germany
    J Evol Biol 24:976-87. 2011
  4. ncbi Factors that influence assimilation rates and fractionation of nitrogen and carbon stable isotopes in avian blood and feathers
    Stuart Bearhop
    Ornithology Group, Graham Kerr Building, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, Scotland
    Physiol Biochem Zool 75:451-8. 2002
  5. ncbi The Dark brown plumage color in chickens is caused by an 8.3-kb deletion upstream of SOX10
    Ulrika Gunnarsson
    Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
    Pigment Cell Melanoma Res 24:268-74. 2011
  6. ncbi Adverse effects from environmental mercury loads on breeding common loons
    David C Evers
    BioDiversity Research Institute, 19 Flaggy Meadow Road, Gorham, ME 04038, USA
    Ecotoxicology 17:69-81. 2008
  7. ncbi Melanocortin 1-receptor (MC1R) mutations are associated with plumage colour in chicken
    S Kerje
    Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
    Anim Genet 34:241-8. 2003
  8. ncbi Exceptional dinosaur fossils show ontogenetic development of early feathers
    Xing Xu
    Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, 142 Xiwai Street, Beijing 100044, China
    Nature 464:1338-41. 2010
  9. ncbi Linking the molecular evolution of avian beta (β) keratins to the evolution of feathers
    Matthew J Greenwold
    Department of Biological Sciences, University of South Carolina, Columbia, USA
    J Exp Zool B Mol Dev Evol 316:609-16. 2011
  10. pmc Integrating stomach content and stable isotope analyses to quantify the diets of pygoscelid penguins
    Michael J Polito
    Department of Biology and Marine Biology, University of North Carolina Wilmington, Wilmington, North Carolina, United States of America
    PLoS ONE 6:e26642. 2011

Detail Information

Publications298 found, 100 shown here

  1. ncbi Global application of stable hydrogen and oxygen isotopes to wildlife forensics
    Gabriel J Bowen
    Department of Biology, University of Utah, 257 South 1400 East, Salt Lake City, UT 84112, USA
    Oecologia 143:337-48. 2005
    ..The use of these maps for forensic application is demonstrated using previously published isotope data for bird feathers (deltaD(f)) in North America and Europe...
  2. pmc Characterization of Japanese quail yellow as a genomic deletion upstream of the avian homolog of the mammalian ASIP (agouti) gene
    Nicola J Nadeau
    Department of Zoology, University of Cambridge, Cambridge, United Kingdom
    Genetics 178:777-86. 2008
    ..The presence of ventral-specific ASIP expression in birds shows that this feature is conserved across vertebrates...
  3. ncbi No evidence for general condition-dependence of structural plumage colour in blue tits: an experiment
    A Peters
    Sexual Signals Group, Max Planck Institute for Ornithology, Vogelwarte Radolfzell, Radolfzell, Germany
    J Evol Biol 24:976-87. 2011
    ..These and previously published results suggest that structural colour might be sensitive to stress, rather than reduced body condition, during moult...
  4. ncbi Factors that influence assimilation rates and fractionation of nitrogen and carbon stable isotopes in avian blood and feathers
    Stuart Bearhop
    Ornithology Group, Graham Kerr Building, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, Scotland
    Physiol Biochem Zool 75:451-8. 2002
    ..and tested the assumption that dietary nitrogen and carbon isotope signatures are incorporated into blood and feathers at similar rates. We also examined the effects of metabolic rate and looked for evidence of isotopic routing...
  5. ncbi The Dark brown plumage color in chickens is caused by an 8.3-kb deletion upstream of SOX10
    Ulrika Gunnarsson
    Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
    Pigment Cell Melanoma Res 24:268-74. 2011
    ..Lower tyrosinase activity leads to a shift toward a more pheomelanistic (reddish) plumage color, which is the characteristic feature of the DB phenotype...
  6. ncbi Adverse effects from environmental mercury loads on breeding common loons
    David C Evers
    BioDiversity Research Institute, 19 Flaggy Meadow Road, Gorham, ME 04038, USA
    Ecotoxicology 17:69-81. 2008
    ..0 ug/g (wet weight) in blood and 40.0 ug/g (fresh weight) in feathers. Mercury contamination in parts of Maine and New Hampshire is a driving stressor for creating breeding population ..
  7. ncbi Melanocortin 1-receptor (MC1R) mutations are associated with plumage colour in chicken
    S Kerje
    Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
    Anim Genet 34:241-8. 2003
    ..It also carried a third missense mutation H215P which thus may interfere with the constitutive activation of the receptor caused by E92K (and possibly M71T)...
  8. ncbi Exceptional dinosaur fossils show ontogenetic development of early feathers
    Xing Xu
    Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, 142 Xiwai Street, Beijing 100044, China
    Nature 464:1338-41. 2010
    ..of feathered dinosaur specimens have greatly improved our understanding of the origin and early evolution of feathers, but little information is available on the ontogenetic development of early feathers...
  9. ncbi Linking the molecular evolution of avian beta (β) keratins to the evolution of feathers
    Matthew J Greenwold
    Department of Biological Sciences, University of South Carolina, Columbia, USA
    J Exp Zool B Mol Dev Evol 316:609-16. 2011
    b>Feathers of today's birds are constructed of beta (β)-keratins, structural proteins of the epidermis that are found solely in reptiles and birds...
  10. pmc Integrating stomach content and stable isotope analyses to quantify the diets of pygoscelid penguins
    Michael J Polito
    Department of Biology and Marine Biology, University of North Carolina Wilmington, Wilmington, North Carolina, United States of America
    PLoS ONE 6:e26642. 2011
    ....
  11. ncbi Variation of heavy metals within and among feathers of birds of prey: effects of molt and external contamination
    T Dauwe
    Department of Biology, University of Antwerp UIA, Universiteitsplein 1, 2610 Wilrijk, Belgium
    Environ Pollut 124:429-36. 2003
    ..contamination on the heavy metal (Ag, Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb and Zn) concentration in feathers. We compared the heavy metal content among the 10 primary wing feathers of sparrowhawks (Accipiter nisus), little ..
  12. ncbi An individual and a sex odor signature in kittiwakes?: study of the semiochemical composition of preen secretion and preen down feathers
    Sarah Leclaire
    Universite Paul Sabatier, Laboratoire Evolution et Diversité Biologique, Toulouse, France
    Naturwissenschaften 98:615-24. 2011
    ..Here, we test whether body odors in preen gland secretion and preen down feathers in kittiwakes may provide a sex and an individual signature...
  13. ncbi Sexually selected traits predict patterns of species richness in a diverse clade of suboscine birds
    Nathalie Seddon
    Edward Grey Institute of Field Ornithology, Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, United Kingdom
    Am Nat 171:620-31. 2008
    ..This is the first study to reveal correlations between song structure and species diversity, emphasizing the importance of acoustic signals, and within-family analyses, in comparative studies of sexual selection...
  14. pmc Colour-producing β-keratin nanofibres in blue penguin (Eudyptula minor) feathers
    Liliana D'Alba
    Department of Biology and Integrated Bioscience Program, University of Akron, Akron, OH 44325 3908, USA
    Biol Lett 7:543-6. 2011
    ..Only two fundamental morphologies of non-iridescent nanostructures are known in feathers, and recent work has proposed that they self-assemble by intracellular phase separation processes...
  15. pmc Optimal annual routines: behaviour in the context of physiology and ecology
    John M McNamara
    Department of Mathematics, University of Bristol, Bristol, BS8 1TW, UK
    Philos Trans R Soc Lond B Biol Sci 363:301-19. 2008
    ....
  16. ncbi Feather mites and birds: an interaction mediated by uropygial gland size?
    I Galvan
    Department of Evolutionary Ecology, Museo Nacional de Ciencias Naturales CSIC, Madrid, Spain
    J Evol Biol 21:133-44. 2008
    ....
  17. ncbi Extreme reversed sexual dichromatism in a bird without sex role reversal
    Robert Heinsohn
    Centre for Resource and Environmental Studies, Australian National University, Canberra, ACT 0200 Australia
    Science 309:617-9. 2005
    ..Females are liberated from the need for camouflage but compete for rare nest hollows...
  18. ncbi Reconstruction of Microraptor and the evolution of iridescent plumage
    Quanguo Li
    Beijing Museum of Natural History, 126 Tianqiao South Street, Beijing 100050, People s Republic of China
    Science 335:1215-9. 2012
    ..This finding and estimation of Microraptor feathering consistent with an ornamental function for the tail suggest a centrality for signaling in early evolution of plumage and feather color...
  19. ncbi Identification of a feather β-keratin gene exclusively expressed in pennaceous barbule cells of contour feathers in chicken
    Kinue Kowata
    Graduate School of Natural Science and Technology, Okayama University, 3 1 1 Tsushimanaka, Kitaku, Okayama 700 8530, Japan
    Gene 542:23-8. 2014
    b>Feathers are elaborate skin appendages shared by birds and theropod dinosaurs that have hierarchical branching of the rachis, barbs, and barbules...
  20. ncbi Interspecific variation in the use of carotenoid-based coloration in birds: diet, life history and phylogeny
    V A Olson
    Department of Zoology and Entomology, University of Queensland, Queensland, Australia
    J Evol Biol 18:1534-46. 2005
    ....
  21. pmc Coloration strategies in peacock feathers
    Jian Zi
    Surface Physics Laboratory National Key Laboratory and T Center for Life Sciences, Fudan University, Shanghai 200433, People s Republic of China
    Proc Natl Acad Sci U S A 100:12576-8. 2003
    We report the mechanism of color production in peacock feathers. We find that the cortex in differently colored barbules, which contains a 2D photonic-crystal structure, is responsible for coloration...
  22. pmc Genomic organization and molecular phylogenies of the beta (beta) keratin multigene family in the chicken (Gallus gallus) and zebra finch (Taeniopygia guttata): implications for feather evolution
    Matthew J Greenwold
    Department of Biological Sciences, University of South Carolina, Columbia, SC 29205, USA
    BMC Evol Biol 10:148. 2010
    ..phylogeny of these keratins is important to understanding the evolutionary origin of these appendages, especially feathers. Knowing that the crocodilian beta-keratin genes are closely related to those of birds, the published genomes of ..
  23. ncbi Melanocyte-specific cell mediated immune response in vitiliginous Smyth line chickens
    X Wang
    Department of Poultry Science, University of Arkansas, 1260 Maple Street, Fayetteville, AR 72701, USA
    J Autoimmun 21:149-60. 2003
    ..The anti-MC CMI activity appears to be specific to MC derived from feathers. SDS-PAGE analysis of different sources of MC lysates revealed a 43 kDa missing band in the lysate of feather-MC ..
  24. ncbi Spectral reflectance and directional properties of structural coloration in bird plumage
    D Osorio
    School of Biological Sciences, University of Sussex, Brighton BN1 9QG, UK
    J Exp Biol 205:2017-27. 2002
    ..To study the optical and visual properties of structural plumage colours, we recorded the reflectance spectra of feathers and in particular their directional properties...
  25. ncbi The movement of aquatic mercury through terrestrial food webs
    Daniel A Cristol
    Institute for Integrative Bird Behavior Studies, Department of Biology, College of William and Mary, Williamsburg, VA 23185, USA
    Science 320:335. 2008
    ..Rivers contaminated with mercury may pose a threat to the many bird species that feed on predatory invertebrates in adjacent riparian habitats...
  26. ncbi Mammary glands and feathers: comparing two skin appendages which help define novel classes during vertebrate evolution
    Randall B Widelitz
    Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
    Semin Cell Dev Biol 18:255-66. 2007
    It may appear counter-intuitive to compare feathers and mammary glands. However, through this Evo-Devo analysis, we appreciate how species interact with the environment, requiring different ectodermal organs...
  27. ncbi Moult speed affects structural feather ornaments in the blue tit
    M Griggio
    Konrad Lorenz Institute for Ethology, Vienna, Austria
    J Evol Biol 22:782-92. 2009
    ..Blue tits were sexually dimorphic on the UV/blue crown and on the white cheek feathers. Moult speed, however, dramatically reduced brightness and the saturation only on the UV/blue crown feathers, ..
  28. pmc The Dominant white, Dun and Smoky color variants in chicken are associated with insertion/deletion polymorphisms in the PMEL17 gene
    Susanne Kerje
    Department of Medical Biochemistry and Microbiology, Uppsala University, SE 751 24 Uppsala, Sweden
    Genetics 168:1507-18. 2004
    ..These mutations are, together with the recessive silver mutation in the mouse, the only PMEL17 mutations with phenotypic effects that have been described so far in any species...
  29. pmc Complete association between a retroviral insertion in the tyrosinase gene and the recessive white mutation in chickens
    Chung Ming Chang
    UMR Génétique et Diversité Animales, INRA INA P G, Centre de Recherches de Jouy, 78352 Jouy en Josas, France
    BMC Genomics 7:19. 2006
    ..The albino mutation was found to be a 6 bp deletion in the tyrosinase (TYR) gene. The present work describes an approach to identify the structural rearrangement in the TYR gene associated with the recessive white mutation...
  30. ncbi Plumage color patterns of an extinct dinosaur
    Quanguo Li
    Beijing Museum of Natural History, 126 Tianqiao South Street, Beijing 100050, People s Republic of China
    Science 327:1369-72. 2010
    For as long as dinosaurs have been known to exist, there has been speculation about their appearance. Fossil feathers can preserve the morphology of color-imparting melanosomes, which allow color patterns in feathered dinosaurs to be ..
  31. pmc Recessive black is allelic to the yellow plumage locus in Japanese quail and associated with a frameshift deletion in the ASIP gene
    Takahiro Hiragaki
    Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
    Genetics 178:771-5. 2008
    ..This is the first evidence that the ASIP gene, known to be involved in coat color variation in mammals, is functional and has a similar effect on plumage color in birds...
  32. ncbi Strong environmental determination of a carotenoid-based plumage trait is not mediated by carotenoid availability
    J D Hadfield
    Division of Biology, Imperial College London, Ascot, Berkshire, UK
    J Evol Biol 19:1104-14. 2006
    ..The low heritability of this colour trait suggests environmental factors are likely to underlie the majority of variation in these processes...
  33. ncbi Stable isotopes reveal individual variation in migration strategies and habitat preferences in a suite of seabirds during the nonbreeding period
    Richard A Phillips
    British Antarctic Survey, Natural Environment Research Council, High Cross, Cambridge, UK
    Oecologia 160:795-806. 2009
    ..An increasingly popular approach is to use N and C stable isotope analysis of feathers sampled at colonies to provide information on distribution and trophic level for the preceding, and generally ..
  34. ncbi Comparative equilibration and online technique for determination of non-exchangeable hydrogen of keratins for use in animal migration studies
    L I Wassenaar
    Environment Canada, National Water Research Institute, 11 Innovation Blvd, Saskatoon, SK, Canada, S7N 3H5
    Isotopes Environ Health Stud 39:211-7. 2003
    ..that this analytical approach and CF-IRMS will greatly aid in providing cost effective and directly comparable deltaD results on keratins and feathers among various laboratories and researchers involved in animal migration studies.
  35. ncbi Evidence for sexual selection on structural plumage coloration in female eastern bluebirds (Sialia sialis)
    Lynn Siefferman
    Department of Biological Sciences, Auburn University, Alabama 36849, USA
    Evolution 59:1819-28. 2005
    ..These data indicate that structural coloration is dependent on nutritional condition and suggest that sexual selection is acting on structurally based plumage coloration in female eastern bluebirds...
  36. ncbi Unmelanized plumage patterns in Old World leaf warblers do not correspond to sequence variation at the melanocortin-1 receptor locus (MC1R)
    Elizabeth A MacDougall-Shackleton
    Department of Biology, McMaster University, Hamilton, Ontario, Canada
    Mol Biol Evol 20:1675-81. 2003
    ..Adaptive evolution at MC1R may be constrained by the adaptive importance of plumage pattern elements in this genus...
  37. ncbi How noniridescent colors are generated by quasi-ordered structures of bird feathers
    Heeso Noh
    Department of Applied Physics, Center for Research on Interface Structure and Phenomena, Yale University, CT 06511, USA
    Adv Mater 22:2871-80. 2010
    ..Under omni-directional lighting, colors from the quasi-ordered structures are invariant with the viewing angle. The non-iridescent coloration results from the isotropic nature of structures instead of strong backscattering...
  38. ncbi Strength and cost of an induced immune response are associated with a heritable melanin-based colour trait in female tawny owls
    Julien Gasparini
    Laboratoire Ecologie et Evolution, CNRS UMR 7625, Universite Pierre et Marie Curie, 7 quai Saint Bernard, 75252 Paris Cedex 05, France
    J Anim Ecol 78:608-16. 2009
    ..93). No carotenoids were detected in the feathers. 4...
  39. pmc Linking hydrogen (δ2H) isotopes in feathers and precipitation: sources of variance and consequences for assignment to isoscapes
    Keith A Hobson
    Environment Canada, Saskatoon, Saskatchewan, Canada
    PLoS ONE 7:e35137. 2012
    ..Naturally occurring stable isotopes of H (δ(2)H) in feathers provide an alternative intrinsic marker of animal origin due to the predictable spatial linkage to underlying ..
  40. ncbi Effects of heavy metal exposure on the condition and health of adult great tits (Parus major)
    Tom Dauwe
    Department of Biology, Campus Drie Eiken, University of Antwerp, Universiteitsplein 1, B 2610 Wilrijk, Belgium
    Environ Pollut 140:71-8. 2006
    ..The length of the outermost tail feathers, however, did not differ significantly among study sites...
  41. ncbi Keratinases and sulfide from Bacillus subtilis SLC to recycle feather waste
    Sabrina Martins Lage Cedrola
    Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes IMPG, Bloco I, Centro de Ciencias da Saude CCS, Universidade Federal do Rio de Janeiro UFRJ, Cidade Universitaria, Ilha do Fundao, Rio de Janeiro, RJ 21941 590, Brazil
    World J Microbiol Biotechnol 28:1259-69. 2012
    ..Activity was higher using the inoculum propagated for 72 h on 1% whole feathers supplemented with 0.1% yeast extract...
  42. pmc Haste makes waste but condition matters: molt rate-feather quality trade-off in a sedentary songbird
    Csongor I Vágási
    Department of Evolutionary Zoology, University of Debrecen, Debrecen, Hungary
    PLoS ONE 7:e40651. 2012
    ..The 'molt constraint' hypothesis suggests that molt and plumage functionality are compromised by the preceding breeding event, yet this candidate mechanism remains insufficiently explored...
  43. ncbi Theory of the growth and evolution of feather shape
    R O Prum
    Department of Ecology, University of Kansas, Lawrence, Kansas 66045, USA
    J Exp Zool 291:30-57. 2001
    ..The growth of feathers is simulated with a mathematical model based on six growth parameters: (1) absolute barb and rachis ridge growth ..
  44. ncbi Development and evolutionary origin of feathers
    R O Prum
    Department of Ecology and Evolutionary Biology, and Natural History Museum, University of Kansas, Lawrence, Kansas 66045 2454, USA
    J Exp Zool 285:291-306. 1999
    Avian feathers are a complex evolutionary novelty characterized by structural diversity and hierarchical development...
  45. ncbi The evolution of size of the uropygial gland: mutualistic feather mites and uropygial secretion reduce bacterial loads of eggshells and hatching failures of European birds
    J J Soler
    Estación Experimental de Zonas Aridas, Carretera de Sacramento s n, Cañada de San Urbano, Almeria, Spain
    J Evol Biol 25:1779-91. 2012
    ..The antimicrobial properties of uropygial secretions may prevent colonization and growth of microorganisms on feathers, skin and eggshells...
  46. pmc Archaeopteryx feathers and bone chemistry fully revealed via synchrotron imaging
    U Bergmann
    Stanford Linear Accelerator Center National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource, Menlo Park, CA 94025, USA
    Proc Natl Acad Sci U S A 107:9060-5. 2010
    Evolution of flight in maniraptoran dinosaurs is marked by the acquisition of distinct avian characters, such as feathers, as seen in Archaeopteryx from the Solnhofen limestone...
  47. ncbi Haematological status of wintering great tits (Parus major) along a metal pollution gradient
    Ann Geens
    Department of Biology, University of Antwerp, Ethology, Universiteitsplein 1, B 2610 Antwerp, Belgium
    Sci Total Environ 408:1174-9. 2010
    ..Metal concentrations in blood and feathers indicated that cadmium and lead were the most important metals in the pollution gradient under study...
  48. ncbi A nearly modern amphibious bird from the Early Cretaceous of northwestern China
    Hai Lu You
    Institute of Geology, Chinese Academy of Geological Sciences, 26 Baiwanzhuang Road, Beijing 100037, People s Republic of China
    Science 312:1640-3. 2006
    ..The anatomy of Gansus, like that of other non-neornithean (nonmodern) ornithuran birds, indicates specialization for an amphibious life-style, supporting the hypothesis that modern birds originated in aquatic or littoral niches...
  49. pmc Late Neandertals and the intentional removal of feathers as evidenced from bird bone taphonomy at Fumane Cave 44 ky B.P., Italy
    Marco Peresani
    Sezione di Paleobiologia, Preistoria e Antropologia, Dipartimento di Biologia ed Evoluzione, Universita di Ferrara, I 44100 Ferrara, Italy
    Proc Natl Acad Sci U S A 108:3888-93. 2011
    ..fractures and a breakthrough, are observed exclusively on wings, indicating the intentional removal of large feathers by Neandertals...
  50. ncbi Adsorption of a hazardous dye, erythrosine, over hen feathers
    Vinod K Gupta
    Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667 UA, India
    J Colloid Interface Sci 304:52-7. 2006
    ..Removal of erythrosine has been carried out using waste material--hen feathers--as adsorbent. The effects of pH, concentration of the dye, temperature, and adsorbent dosage have been studied...
  51. ncbi Lead concentrations in feathers and blood of common blackbirds (Turdus merula) and in earthworms inhabiting unpolluted and moderately polluted urban areas
    R Scheifler
    Universite de Franche Comte, Department of Environmental Biology, EA 3184 USC INRA, Place Leclerc, 25030 Besancon Cedex, France
    Sci Total Environ 371:197-205. 2006
    ..functional groups of earthworms (anecic, epigeous and endogeous) and in blood, washed and unwashed outermost tail feathers and breast feathers of blackbirds...
  52. ncbi Isotopic discrimination between food and blood and feathers of captive penguins: implications for dietary studies in the wild
    Yves Cherel
    Centre d Etudes Biologiques de Chize, Unite Propre de Recherche 1934 du Centre National de la Recherche Scientifique, BP 14, 79360 Villiers en Bois, France
    Physiol Biochem Zool 78:106-15. 2005
    ..of carbon ((13)C/(12)C, or delta (13)C) and nitrogen ((15)N/(14)N, or delta (15)N) isotopes in whole blood and feathers, representing noninvasive sampling techniques, were examined using three species of captive penguins (king ..
  53. ncbi Isolation of influenza A viruses from wild ducks and feathers in Minnesota (2010-2011)
    Camille Lebarbenchon
    Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, The University of Georgia, Athens, GA 30602, USA
    Avian Dis 57:677-80. 2013
    We investigated the feasibility of testing feathers as a complementary approach to detect low pathogenic influenza A viruses (IAVs) in wild duck populations...
  54. ncbi Melanin-based coloration is a nondirectionally selected sex-specific signal of offspring development in the alpine swift
    Pierre Bize
    Division of Environmental and Evolutionary Biology, Institute of Biomedical and Life Sciences, Graham Kerr Building, Glasgow University, Glasgow G12 8QQ, United Kingdom
    Evolution 60:2370-80. 2006
    ..Alpine swift (Apus melba) males and females have a conspicuous patch of white feathers on the breast with their rachis varying continuously from white to black, and hence the breast varies from white ..
  55. ncbi Relative contributions of pigments and biophotonic nanostructures to natural color production: a case study in budgerigar (Melopsittacus undulatus) feathers
    Liliana D'Alba
    Department of Biology and Integrated Bioscience Program, University of Akron, Akron, OH 44325 3908, USA
    J Exp Biol 215:1272-7. 2012
    ..b>Feathers from all morphs contained quasi-ordered air-keratin 'spongy layer' matrices, but these were highly reduced and ..
  56. ncbi Marek's disease virus-induced expression of cytokine genes in feathers of genetically defined chickens
    Mohamed Faizal Abdul-Careem
    Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada
    Dev Comp Immunol 33:618-23. 2009
    ..Therefore, we investigated Marek's disease virus (MDV) replication as well as the expression of cytokine genes in feathers of MDV-infected chickens belonging to genetically defined lines (N2a or B(21)/B(21) haplotype-resistant and P2a ..
  57. pmc Cryptic patterning of avian skin confers a developmental facility for loss of neck feathering
    Chunyan Mou
    The Roslin Institute and Royal Dick School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
    PLoS Biol 9:e1001028. 2011
    Vertebrate skin is characterized by its patterned array of appendages, whether feathers, hairs, or scales. In avian skin the distribution of feathers occurs on two distinct spatial levels...
  58. pmc A protean palette: colour materials and mixing in birds and butterflies
    Matthew D Shawkey
    Department of Biology and Integrated Bioscience Program, University of Akron, Akron, OH 44325 3908, USA
    J R Soc Interface 6:S221-31. 2009
    ..Finally, we suggest directions for future research on colour optics and evolution that will be invaluable as we move towards a fuller understanding of colour in the natural world...
  59. ncbi Eumelanin- and pheomelanin-based colour advertise resistance to oxidative stress in opposite ways
    A Roulin
    Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
    J Evol Biol 24:2241-7. 2011
    ..Our results reveal that eumelanin- and pheomelanin-based colourations can be redundant signals of resistance to oxidative stress...
  60. ncbi Association of a single-nucleotide substitution in TYRP1 with roux in Japanese quail (Coturnix japonica)
    N J Nadeau
    Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
    Anim Genet 38:609-13. 2007
    ..In addition, the Phe282 amino acid appears to be of functional significance, as it is highly conserved across the vertebrates. This is the first demonstration that TYRP1 has a role in pigmentation in birds...
  61. ncbi Mapping of the recessive white locus and analysis of the tyrosinase gene in chickens
    S Sato
    National Livestock Breeding Center, Nishigo, Fukushima 961 8511, Japan
    Poult Sci 86:2126-33. 2007
    ..Based on these results, it was confirmed that an avian retroviral sequence insertion in the tyrosinase gene was the cause of recessive white phenotype in chickens...
  62. ncbi Apoptosis in feathers of Smyth line chickens with autoimmune vitiligo
    X Wang
    Department of Poultry Science, University of Arkansas, 1260 Maple Street, Fayetteville, AR 72701, USA
    J Autoimmun 22:21-30. 2004
    ..end labeling (TUNEL) was used to detect in situ cell apoptosis in cryostat sections of 2-week-old regenerating feathers. Two-week-old regenerating feathers were obtained from SL chickens and their normally pigmented controls ..
  63. ncbi Consequences of elevating plasma testosterone in females of a socially monogamous songbird: evidence of constraints on male evolution?
    Ethan D Clotfelter
    Department of Biology, Providence College, Providence, RI 02918, USA
    Horm Behav 46:171-8. 2004
    ..We found no reason to expect reduced parental behavior by females as a negative fitness consequence of selection for higher testosterone in males...
  64. ncbi Dynamic feedback between phenotype and physiology in sexually selected traits
    Dustin R Rubenstein
    Department of Integrative Biology and Museum of Vertebrate Zoology, University of California, Berkeley, 3060 Valley Life Sciences Building, Berkeley, CA 94720, USA
    Trends Ecol Evol 23:655-8. 2008
    ..Instead, these results suggest that dynamic feedbacks between physiological, morphological and behavioural costs underlie the development and maintenance of sexually selected ornaments...
  65. pmc Cross-hemisphere migration of a 25 g songbird
    Franz Bairlein
    Institute of Avian Research Vogelwarte Helgoland, An der Vogelwarte 21, Wilhelmshaven 26386, Germany
    Biol Lett 8:505-7. 2012
    ..Stable-hydrogen isotope analysis of winter-grown feathers sampled from breeding birds generally support the notion that Alaskan birds overwinter primarily in eastern ..
  66. ncbi Towards a comprehensive model of feather regeneration
    Paul F A Maderson
    Department of Biology, Brooklyn College of CUNY, New York 11210, USA
    J Morphol 270:1166-208. 2009
    Understanding of the regeneration of feathers, despite a 140 year tradition of study, has remained substantially incomplete...
  67. ncbi Metal levels in feathers of 12 species of seabirds from midway atoll in the northern Pacific Ocean
    J Burger
    Division of Life Sciences and Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854 8082, USA
    Sci Total Environ 257:37-52. 2000
    ..this paper we compare the levels of lead, cadmium, mercury arsenic, chromium, manganese, selenium, and tin in the feathers of birds nesting on Midway Atoll in the northern Pacific Ocean...
  68. ncbi Proximate mechanisms of variation in the carotenoid-based plumage coloration of nestling great tits (Parus major L.)
    B Tschirren
    Division of Evolutionary Ecology, Institute of Zoology, University of Bern, Bern, Switzerland
    J Evol Biol 16:91-100. 2003
    ....
  69. ncbi Carotenoid availability in diet and phenotype of blue and great tit nestlings
    Clotilde Biard
    Laboratoire de Parasitologie Evolutive, CNRS UMR 7103, Universite Pierre et Marie Curie Paris 6, Bât A Case 237, 7 quai Saint Bernard, F 75252 Paris Cedex 05, France
    J Exp Biol 209:1004-15. 2006
    ....
  70. ncbi Mercury in breeding and wintering Nelson's Sparrows (Ammodramus nelsoni)
    V L Winder
    Department of Biology and Marine Biology, University of North Carolina at Wilmington, 601 South College Road, Wilmington, NC, USA
    Ecotoxicology 20:218-25. 2011
    ..Blood, breast feathers and the first primary feather were sampled from Nelson's Sparrows wintering in North Carolina coastal salt ..
  71. ncbi A hierarchical model of plumage: morphology, development, and evolution
    Richard O Prum
    Department of Ecology and Evolutionary Biology, and Natural History Museum, University of Kansas, Lawrence, Kansas 66045 2454, USA
    J Exp Zool B Mol Dev Evol 298:73-90. 2003
    ..model of plumage that provides an intellectual framework for understanding the development and evolution of feathers. Independence, covariation, and interaction among plumage modules create numerous opportunities for developmental ..
  72. ncbi A pre-Archaeopteryx troodontid theropod from China with long feathers on the metatarsus
    Dongyu Hu
    Paleontological Institute, Shenyang Normal University, 253 North Huanghe Street, Shenyang 110034, China
    Nature 461:640-3. 2009
    ..Furthermore, the extensive feathering of this specimen, particularly the attachment of long pennaceous feathers to the pes, sheds new light on the early evolution of feathers and demonstrates the complex distribution of ..
  73. ncbi Explosive increase in ectoparasites in Hawaiian forest birds
    Leonard A Freed
    Department of Zoology, University of Hawaii at Manoa, Honolulu, Hawaii 96822, USA
    J Parasitol 94:1009-21. 2008
    ..Based on reduced fat levels and increases in broken wing and tail feathers for most host species, there was apparently a food limitation that preceded the increase...
  74. ncbi Iridescent plumage in satin bowerbirds: structure, mechanisms and nanostructural predictors of individual variation in colour
    Stéphanie M Doucet
    Department of Biological Sciences, 331Funchess Hall, Auburn University, AL 36849, USA
    J Exp Biol 209:380-90. 2006
    ....
  75. ncbi Melanism in guinea fowl (Numida meleagris) is associated with a deletion of Phenylalanine-256 in the MC1R gene
    O Vidal
    Departament de Biologia, Universitat de Girona, Girona, Catalonia, Spain
    Anim Genet 41:656-8. 2010
    ..Interestingly, this is the first case of recessive melanism linked to MC1R...
  76. pmc Testosterone, plumage colouration and extra-pair paternity in male North-American barn swallows
    Cas Eikenaar
    Department of Biological Sciences, Virginia Tech, Blacksburg, Virginia, United States of America
    PLoS ONE 6:e23288. 2011
    ..Possibly plumage colour co-varies with a male behavioural trait, such as aggressiveness, that reduces the chance of cuckoldry. This could also explain why dark males have higher testosterone concentrations than drab males...
  77. ncbi Trace metals as biomarkers for eumelanin pigment in the fossil record
    R A Wogelius
    School of Earth, Atmospheric, and Environmental Sciences, University of Manchester, Manchester M13 9PL, UK
    Science 333:1622-6. 2011
    Well-preserved fossils of pivotal early bird and nonavian theropod species have provided unequivocal evidence for feathers and/or downlike integuments...
  78. ncbi CHOXC-8 and CHOXD-13 expression in embryonic chick skin and cutaneous appendage specification
    B Kanzler
    Biologie de la Différenciation Epithéliale UMR CNRS 5538, Institut Albert Bonniot, Universite Joseph Fourier, Grenoble, France
    Dev Dyn 210:274-87. 1997
    ..recombinations of dorsal, plantar, and apteric tissues revealed that the epidermal ability or inability to form feathers is already established by the time of skin formation...
  79. ncbi Evolutionary origin of the feather epidermis
    Roger H Sawyer
    Department of Biological Sciences, University of South Carolina, Columbia, SC 29802, USA
    Dev Dyn 232:256-67. 2005
    The formation of scales and feathers in reptiles and birds has fascinated biologists for decades...
  80. ncbi Tissue levels of lead in experimentally exposed zebra finches (Taeniopygia guttata) with particular attention on the use of feathers as biomonitors
    T Dauwe
    Department of Biology, University of Antwerp U I A, Universiteitsplein 1, B 2610 Wilrijk, Belgium
    Arch Environ Contam Toxicol 42:88-92. 2002
    We tested experimentally whether zebra finch feathers can be used as a biomonitor for lead pollution, and we examined whether lead exposure influences the accumulation of zinc into feathers...
  81. ncbi Isotope signatures in winter moulted feathers predict malaria prevalence in a breeding avian host
    Elizabeth Yohannes
    Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, P O Box 1564, 82305, Starnberg Seewiesen, Germany
    Oecologia 158:299-306. 2008
    ..Tradeoffs between investment in energy demanding life history traits (e.g. migration and winter moult) and immune function are suggested to contribute to the particular choice of habitat during migration and at wintering sites...
  82. ncbi Dietary antioxidants, lipid peroxidation and plumage colouration in nestling blue tits Cyanistes caeruleus
    Stephen D Larcombe
    Division of Ecology and Evolutionary Biology, Faculty of Biomedical and Life Sciences, University of Glasgow, Glasgow, UK
    Naturwissenschaften 97:903-13. 2010
    ..Moreover, interpreting the biological relevance of different biomarkers of antioxidant status represents a challenge for evolutionary ecology...
  83. ncbi Risk, mercury levels, and birds: relating adverse laboratory effects to field biomonitoring
    J Burger
    Ecology, Evolution, and Natural Resources, Nelson Biology Laboratory, Rutgers University, Piscataway, New Jersey 08854 8082, USA
    Environ Res 75:160-72. 1997
    ..We use feathers from fledgling birds which would have been fed on locally obtained food to eliminate the problem of where toxic ..
  84. pmc Interpopulation variation in contour feather structure is environmentally determined in great tits
    Juli Broggi
    Department of Biology, University of Oulu, Oulu, Finland
    PLoS ONE 6:e24942. 2011
    The plumage of birds is important for flying, insulation and social communication. Contour feathers cover most of the avian body and among other functions they provide a critical insulation layer against heat loss...
  85. ncbi Mercury levels of Nelson's and saltmarsh sparrows at wintering grounds in Virginia, USA
    Daniel A Cristol
    Department of Biology, College of William and Mary, Institute for Integrative Bird Behavior Studies, Williamsburg, VA 23187, USA
    Ecotoxicology 20:1773-9. 2011
    ..Areas set aside for the long-term conservation of this species should be carefully assessed for mercury bioaccumulation...
  86. ncbi Variations in the morphology, distribution, and arrangement of feathers in domesticated birds
    Thomas Bartels
    Institute for Avian Diseases, Department of Small Animal Medicine, University of Leipzig, Germany
    J Exp Zool B Mol Dev Evol 298:91-108. 2003
    ..Variations in the number of feathers (e.g., increased number of tail feathers, lack of tail feathers) occur in certain pigeon and poultry breeds...
  87. pmc The "silver" Japanese quail and the MITF gene: causal mutation, associated traits and homology with the "blue" chicken plumage
    Francis Minvielle
    UMR 1313 INRA AgroParisTech, Génétique animale et biologie intégrative GABI, F 78352, Jouy en Josas, France
    BMC Genet 11:15. 2010
    ....
  88. ncbi Quantitative genetics of a carotenoid-based color: heritability and persistent natal environmental effects in the great tit
    Simon R Evans
    Edward Grey Institute, Department of Zoology, University of Oxford, Oxford OX1 3PS, United Kingdom
    Am Nat 179:79-94. 2012
    ..Our analyses demonstrate the context dependence of components of color variation and suggest that color patches may convey multiple aspects of individual state...
  89. ncbi Effect of macroalgae enriched with microelements on egg quality parameters and mineral content of eggs, eggshell, blood, feathers and droppings
    I Michalak
    Institute of Inorganic Technology and Mineral Fertilizers, Wrocław University of Technology, Smoluchowskiego 25, 50 372 Wrocław, Poland
    J Anim Physiol Anim Nutr (Berl) 95:374-87. 2011
    ..feeding experiment, weight of laying hens, weight of eggs, eggshell thickness and mineral content of blood, feathers, droppings, eggs content (separately yolk and egg white) and eggshell were measured...
  90. ncbi A multifactorial test of the effects of carotenoid access, food intake and parasite load on the production of ornamental feathers and bill coloration in American goldfinches
    Geoffrey E Hill
    Department of Biological Sciences, Auburn University, Auburn, AL 36830, USA
    J Exp Biol 212:1225-33. 2009
    ..manipulated three environmental conditions under which American goldfinches (Cardeulis tristis) grew colorful feathers and developed carotenoid pigmentation of their bills...
  91. pmc Carotenoids need structural colours to shine
    Matthew D Shawkey
    Department of Biological Sciences, Auburn University, Auburn, AL 36849, USA
    Biol Lett 1:121-4. 2005
    The bright colours of feathers are among the most striking displays in nature and are frequently used as sexual signals...
  92. ncbi The distribution of integumentary structures in a feathered dinosaur
    Q Ji
    Chinese Academy of Geological Sciences, 26 Baiwanzhuang, Beijing 100037, People's Republic of China
    Nature 410:1084-8. 2001
    ..coverings are becoming more common; but apart from the multiple specimens of Caudipteryx, which have true feathers, animals that are reasonably complete and entirely articulated that show these structures in relation to the body ..
  93. pmc Persistence of avian influenza virus (H5N1) in feathers detached from bodies of infected domestic ducks
    Yu Yamamoto
    National Institute of Animal Health, Tsukuba, Ibaraki, Japan
    Appl Environ Microbiol 76:5496-9. 2010
    ..We investigated avian influenza virus (H5N1) persistence in feathers detached from bodies of infected ducks to evaluate their potential risk for environmental contamination...
  94. ncbi A bizarre Jurassic maniraptoran from China with elongate ribbon-like feathers
    Fucheng Zhang
    Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, PO Box 643, Beijing 100044, China
    Nature 455:1105-8. 2008
    ..Epidexipteryx also possesses two pairs of elongate ribbon-like tail feathers, and its limbs lack contour feathers for flight...
  95. ncbi Cytochemical and molecular characteristics of the process of cornification during feather morphogenesis
    Lorenzo Alibardi
    Dipartimento di Biologia Evoluzionistica Sperimentale, Via Selmi 3, University of Bologna, 40126 Bologna, Italy
    Prog Histochem Cytochem 43:1-69. 2008
    b>Feathers are the most complex epidermal derivatives among vertebrates...
  96. ncbi Distinct Wnt members regulate the hierarchical morphogenesis of skin regions (spinal tract) and individual feathers
    Chung Hsing Chang
    Department of Pathology, Keck School of Medicine, University of Southern California, HMR 305D, 2011 Zonal Avenue, Los Angeles, CA 90033, USA
    Mech Dev 121:157-71. 2004
    ..Wnt 5a and 11 triggered the JNK pathway. Thus distinctive Wnts have positive and negative roles in forming the dermis, tracts, interbud spacing and the growth and shaping of individual buds...
  97. pmc Allometry of the duration of flight feather molt in birds
    Sievert Rohwer
    Burke Museum and Department of Biology, University of Washington, Seattle, United States of America
    PLoS Biol 7:e1000132. 2009
    We used allometric scaling to explain why the regular replacement of the primary flight feathers requires disproportionately more time for large birds. Primary growth rate scales to mass (M) as M(0...
  98. ncbi The different steps of skin formation in vertebrates
    Isabel Olivera-Martinez
    Equipe Biologie de la Différenciation Epithéliale, UMR CNRS 5538, Institut Albert Bonniot, Universite Joseph Fourier, Grenoble, France
    Int J Dev Biol 48:107-15. 2004
    ....
  99. ncbi Tracking stress: localisation, deposition and stability of corticosterone in feathers
    Gary R Bortolotti
    Department of Biology, University of Saskatchewan, Saskatoon, Canada S7N 5E2
    J Exp Biol 212:1477-82. 2009
    ..By contrast, the quantification of corticosterone (CORT) in feathers represents a long-term, integrated measure of hypothalamic-pituitary-adrenal activity...
  100. ncbi Microorganisms associated with feathers of barn swallows in radioactively contaminated areas around chernobyl
    Gábor Arpád Czirják
    Laboratoire Evolution et Diversité Biologique, UMR 5174 Centre National de la Recherche Scientifique, Universite Paul Sabatier, 118 route de Narbonne, 31062 Toulouse, France
    Microb Ecol 60:373-80. 2010
    ..of total cultivable bacteria and fungi and the abundance of feather-degrading bacterial subset present on feathers of barn swallows (Hirundo rustica), a colonial migratory passerine, around Chernobyl in relation to levels of ..
  101. ncbi The evolutionary origin and diversification of feathers
    Richard O Prum
    Department of Ecology and Evolutionary Biology, and Natural History Museum, University of Kansas, Lawrence, Kansas 66045, USA
    Q Rev Biol 77:261-95. 2002
    Progress on the evolutionary origin and diversification of feathers has been hampered by conceptual problems and by the lack of plesiomorphic feather fossils...

Research Grants27

  1. DEVELOPMENT AND REGENERATION OF SKIN APPENDAGES
    Cheng Ming Chuong; Fiscal Year: 2013
    ..In the last funding periods, we made two major advances, each published in Nature. 1) Feathers have robust regenerative power, but the location of stem cells was unknown...
  2. Determining the genetic and developmental basis of epidermal appendage evolution
    ERIC DOMYAN; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): The development of epidermal appendages, such as hair in mammals and feathers and scales in birds, provides a particularly tractable model for studying medically-relevant processes such as fate ..
  3. Pattern Formation During Skin Organogenesis
    Randall Bruce Widelitz; Fiscal Year: 2013
    ..We choose to focus on three components critical to avian skin function: the feathers, muscles that connect feathers for functionality, and pigment that decorates feathers for communication...
  4. Signaling Specificity of Drosophila Serpentine Receptors
    Andrew Tomlinson; Fiscal Year: 2012
    ..Bird feathers, mammalian hairs and fish scales exemplify this phenomenon...
  5. Monitoring nanoparticle biology in vivo: unique opportunities in the avian system
    Gisela F Erf; Fiscal Year: 2013
    ..unique feature of this avian test-system is repeat access to a complex dermal tissue, namely the pulp of growing feathers (GF). Both injection and collection of GF are considered minimally invasive procedures...
  6. DOMINANT WHITE (I) GENE OF CHICKENS: MODEL FOR VITILIGO
    ROGER BOWERS; Fiscal Year: 1991
    ..will be tested by the following experiments: (1) Location of the zone of cell death in the WL (I/I; I/i+) feathers; (2) the effect of unchanged media on the WL and JF in vitro melanocytes; (3) the effect on the in vitro ..
  7. A New System to Study the Control of Epidermal Growth
    Richard Schneider; Fiscal Year: 2007
    ..which give rise to the craniofacial dermis, induce premature formation of host epidermal structures such as feathers by accelerating the expression of genes including members of the Bone Morphogenetic Protein (BMP) signaling ..
  8. Autoimmune Vitiligo: gene-expression during pathogenesis
    Gisela Erf; Fiscal Year: 2005
    ..It is the goal of this research proposal to study the local environment in the target tissue (feathers) prior to and throughout the development of SLV...
  9. MORPHOLOGICAL AND BIOCHEMICAL DEFECTS IN DEVELOPMENT
    ROGER SAWYER; Fiscal Year: 1990
    ..and indirect immunofluorescence) during the development of the scutate scales, reticulate scales, feathers and general body skin from normal chicken embryos and embryos which have genetically based skin disorders, 3) to ..
  10. PROTEOGLYCANS IN AVIAN SKIN MORPHOGENESIS
    Paul Goetinck; Fiscal Year: 1992
    ..be carried out on the dorsal (feather forming) and tarsometatarsal (scale forming) regions of normal embryos and on comparable regions of scaleless embryos, which, as a result of a hereditary lesion, fail to develop feathers and skins.
  11. Repair and regeneration in a novel animal model
    Cheng Ming Chuong; Fiscal Year: 2008
    ..g., Msx, beta catenin, Shh, BMP, FGF, etc.) will be prioritized for mapping studies. Likely candidates will be perturbed using electroporation of siRNA. [unreadable] [unreadable] [unreadable] [unreadable]..
  12. High Resolution Microarray Analysis of Cancer
    Cheng Ming Chuong; Fiscal Year: 2002
    ..g., those in tissue banks). This protocol is simple, fast, and reliable and uses minimal samples widely obtainable. The method can be applied to all cancers. ..
  13. MOLECULAR MECHANISMS OF CHEMOTHERAPY-INDUCED HAIR LOSS
    Vladimir Botchkarev; Fiscal Year: 2005
    ..Patients with many forms of p53-negative cancers treated by chemotherapy may ultimately benefit from this study. ..
  14. A ROLE FOR NOGGIN AND BMP2/4 IN HAIR GROWTH CONTROL
    Vladimir Botchkarev; Fiscal Year: 2003
    ..abstract_text> ..
  15. Behavioral Genomics of the White-throated Sparrow
    ELAINA M contact TUTTLE; Fiscal Year: 2010
    ..In addition, our results will provide insight into other genetic traits (e.g. disease) associated with gene rearrangement. ..
  16. Evolution of BMP Genes 2 and 4 in Archosaurs
    CHRIS ORGAN; Fiscal Year: 2007
    ..Aim three is to elucidate the evolution of bmp2 and bmp4 coding regions. This project will be the first large scale examination of non-avian reptile genome structure and evolution. ..
  17. FUNCTION OF NOGGIN IN HAIR FOLLICLE GROWTH AND DISEASE
    Vladimir Botchkarev; Fiscal Year: 2006
    ....
  18. 2005 Gordon Conference on Catecholamines
    David Sulzer; Fiscal Year: 2005
    ..abstract_text> ..
  19. B-CATENIN PATHWAY IN REGULATED AND INDUCED NEW GROWTH
    Randall Widelitz; Fiscal Year: 2003
    ..Knowledge gained from these studies will be useful in the diagnosis and treatment of many forms of cancer. ..
  20. Gene Duplication and Genome Evolution
    Austin Hughes; Fiscal Year: 2004
    ..5) Examining the role of transposable elements in duplication of genomic segments by testing for nonrandom association between these elements and putatively duplicated blocks in the yeast genome. ..
  21. Sex Hormone Regulation of Organ Formation
    Randall Widelitz; Fiscal Year: 2008
    ..In mouse hairs, sexual dimorphism is not apparent. We propose to develop a novel model: the growth of tail feathers in roosters and hens, because it is an in vivo physiological process and accessible for analyses...
  22. Development and transmission of alarm behaviors
    Alberto Palleroni; Fiscal Year: 2005
    ..abstract_text> ..
  23. NEUROENDOCRINE CONTROL OF REPRODUCTIVE BEHAVIOR
    LAUREN RITERS; Fiscal Year: 2003
    ..In addition, this research could lay the groundwork for future studies on the etiology of disorders related to sexual arousal...
  24. Biological Actions of a Gonadotrophin-Inhibitory Peptide
    John Wingfield; Fiscal Year: 2004
    ..The studies outlined in this application will provide a new level of understanding of the neural basis of reproduction that can then be applied to reproductive research in general. ..
  25. EVOLUTION OF IMMUNE RECOGNITION AND EVASION
    Austin L Hughes; Fiscal Year: 2010
    ..In addition, by increasing our understanding of the population diversity and evolutionary history of human immune system genes, this research will enhance our knowledge of human immune function in health and disease. ..
  26. Evolutionary genetics of visual communication
    SETH COLEMAN; Fiscal Year: 2008
    ..abstract_text> ..