Genomes and Genes
Summary: The time period of daily exposure that an organism receives from daylight or artificial light. It is believed that photoperiodic responses may affect the control of energy balance and thermoregulation.
Publications343 found, 100 shown here
- FT protein movement contributes to long-distance signaling in floral induction of ArabidopsisLaurent Corbesier
Max Planck Institute for Plant Breeding Research, Carl von Linne Weg 10, D 50829 Cologne, Germany
Science 316:1030-3. 2007..Finally, we provide evidence that FT does not activate an intermediate messenger in leaves. We conclude that FT protein acts as a long-distance signal that induces Arabidopsis flowering...
- The late elongated hypocotyl mutation of Arabidopsis disrupts circadian rhythms and the photoperiodic control of floweringR Schaffer
John Innes Centre, Norwich, United Kingdom
Cell 93:1219-29. 1998..circadian clock regulation of gene expression and leaf movements and caused flowering to occur independently of photoperiod. LHY was shown to encode a MYB DNA-binding protein...
- Hd3a, a rice ortholog of the Arabidopsis FT gene, promotes transition to flowering downstream of Hd1 under short-day conditionsShoko Kojima
Institute of the Society for Techno Innovation of Agriculture, Forestry and Fisheries, Tsukuba, Ibaraki, 305 0854 Japan
Plant Cell Physiol 43:1096-105. 2002....
- CONSTANS mediates between the circadian clock and the control of flowering in ArabidopsisP Suárez-López
John Innes Centre, Norwich Research Park, Colney Lane, Norwich NR4 7UH, UK
Nature 410:1116-20. 2001..In addition, the late flowering phenotype of such mutants is corrected by overexpressing CO. Thus, CO acts between the circadian clock and the control of flowering, suggesting mechanisms by which day length regulates flowering time...
- Regulation and identity of florigen: FLOWERING LOCUS T moves center stageFranziska Turck
Max Planck Institute for Plant Breeding, D 50829 Cologne, Germany
Annu Rev Plant Biol 59:573-94. 2008..Finally, we discuss conservation of FT function in other species and how variation in its regulation could generate different flowering behaviors...
- Thyrotrophin in the pars tuberalis triggers photoperiodic responseNobuhiro Nakao
Division of Biomodelling, Graduate School of Bioagricultural Sciences, Nagoya University, Furo cho, Chikusa ku, Nagoya 464 8601, Japan
Nature 452:317-22. 2008Molecular mechanisms regulating animal seasonal breeding in response to changing photoperiod are not well understood...
- FLOWERING LOCUS T protein may act as the long-distance florigenic signal in the cucurbitsMing Kuem Lin
Section of Plant Biology, College of Biological Sciences, University of California, Davis, California 95616, USA
Plant Cell 19:1488-506. 2007..moschata plants established that Cmo-FTL1 and Cmo-FTL2 are regulated by photoperiod at the level of movement into the phloem and not by transcription...
- CO/FT regulatory module controls timing of flowering and seasonal growth cessation in treesHenrik Böhlenius
Umea Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, S 90183 Umeå, Sweden
Science 312:1040-3. 2006..This regulatory mechanism can explain the ecogenetic variation in a highly adaptive trait: the critical daylength for growth cessation displayed by aspen trees sampled across a latitudinal gradient spanning northern Europe...
- Light-induced hormone conversion of T4 to T3 regulates photoperiodic response of gonads in birdsTakashi Yoshimura
Division of Biomodeling, Graduate School of Bioagricultural Sciences, Nagoya University, Furo cho, Chikusa ku, Nagoya, 464 8601, Japan
Nature 426:178-81. 2003..These findings demonstrate that light-induced Dio2 expression in the MBH may be involved in the photoperiodic response of gonads in Japanese quail...
- Arabidopsis, the Rosetta stone of flowering time?Gordon G Simpson
Department of Cell and Developmental Biology, John Innes Centre, Norwich, NR4 7UH, UK
Science 296:285-9. 2002..This framework provides the basis to understand the evolution of different reproductive strategies and how floral pathways interact through seasonal progression...
- Comparative genomics of flowering time pathways using Brachypodium distachyon as a model for the temperate grassesJanet A Higgins
Department of Crop Genetics, John Innes Centre, Norwich, United Kingdom
PLoS ONE 5:e10065. 2010..Pathways include those detecting and responding to the environmental cues of day length (photoperiod) and extended periods of low temperature (vernalization)...
- Regulation of flowering in rice: two florigen genes, a complex gene network, and natural variationHiroyuki Tsuji
Nara Institute of Science and Technology, 8916 5 Takayama, Ikoma, Nara 630 0192, Japan
Curr Opin Plant Biol 14:45-52. 2011..This review summarizes photoperiodic flowering control in rice, including the interaction of complex layers of gene networks contributed from evolutionarily unique factors and the regulatory adaptation of conserved factors...
- A pair of floral regulators sets critical day length for Hd3a florigen expression in riceHironori Itoh
Photosynthesis and Photobiology Research Unit, National Institute of Agrobiological Sciences, Tsukuba, Japan
Nat Genet 42:635-8. 2010..Thus, two distinct gating mechanisms--of the floral promoter Ehd1 and the floral repressor Ghd7--could enable manipulation of slight differences in day length to control Hd3a transcription with a critical day-length threshold...
- The timing of developmental transitions in plantsIsabel Bäurle
Department of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, UK
Cell 125:655-64. 2006..Parallel themes are beginning to emerge from a molecular comparison of these two developmental transitions...
- Cloning of the Arabidopsis clock gene TOC1, an autoregulatory response regulator homologC Strayer
Department of Cell Biology, Scripps Research Institute, La Jolla, CA 92037, USA
Science 289:768-71. 2000..TOC1 is itself circadianly regulated and participates in a feedback loop to control its own expression...
- Distinct roles of CONSTANS target genes in reproductive development of ArabidopsisA Samach
John Innes Centre, Norwich NR4 7UH, UK
Science 288:1613-6. 2000..The SOC1 and FT genes are also regulated by a second flowering-time pathway that acts independently of CO. Thus, early target genes of CO define common components of distinct flowering-time pathways...
- Chronic phase shifts of the photoperiod throughout pregnancy programs glucose intolerance and insulin resistance in the ratTamara J Varcoe
Research Centre for Reproductive Health, Robinson Institute, University of Adelaide, Adelaide, South Australia, Australia
PLoS ONE 6:e18504. 2011..Pregnant rats were exposed to chronic phase shifts (CPS) in their photoperiod every 3-4 days throughout gestation and the first week after birth...
- Photoperiodic control of seasonality in birdsA Dawson
Centre for Ecology and Hydrology, Huntingdon, Cambridgeshire, UK
J Biol Rhythms 16:365-80. 2001This review examines how birds use the annual cycle in photoperiod to ensure that seasonal events--breeding, molt, and song production--happen at the appropriate time of year...
- Transcription factor PIF4 controls the thermosensory activation of floweringS Vinod Kumar
Department of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, UK
Nature 484:242-5. 2012..How this occurs is, however, not understood, because the major pathway known to upregulate FT, the photoperiod pathway, is not required for thermal acceleration of flowering...
- A morning-specific phytohormone gene expression program underlying rhythmic plant growthTodd P Michael
Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California, USA
PLoS Biol 6:e225. 2008..growth rates of the embryonic stem (hypocotyl) are maximal at different times of day, depending on external photoperiod and the internal circadian clock...
- The GIGANTEA-regulated microRNA172 mediates photoperiodic flowering independent of CONSTANS in ArabidopsisJae Hoon Jung
Molecular Signaling Laboratory, Department of Chemistry, Seoul National University, Seoul, Korea
Plant Cell 19:2736-48. 2007..Notably, miR172 abundance is regulated by photoperiod via GI-mediated miRNA processing...
- Adaptation of photoperiodic control pathways produces short-day flowering in riceRyosuke Hayama
Laboratory of Plant Molecular Genetics, Nara Institute of Science and Technology, 8916 5 Takayama, Ikoma 630 0101, Japan
Nature 422:719-22. 2003....
- Data assimilation constrains new connections and components in a complex, eukaryotic circadian clock modelAlexandra Pokhilko
School of Biological Sciences, University of Edinburgh, Mayfield Road, Edinburgh, UK
Mol Syst Biol 6:416. 2010..The multiple PRR genes of Arabidopsis uncouple events in the late night from light-driven responses in the day, increasing the flexibility of rhythmic regulation...
- Ehd1, a B-type response regulator in rice, confers short-day promotion of flowering and controls FT-like gene expression independently of Hd1Kazuyuki Doi
Plant Breeding Laboratory, Faculty of Agriculture, Kyushu University, Fukuoka 812 8581, Japan
Genes Dev 18:926-36. 2004..Microarray analysis further revealed a few MADS box genes downstream of Ehd1. Our results indicate that a novel two-component signaling cascade is integrated into the conserved pathway in the photoperiodic control of flowering in rice...
- Two coordinately regulated homologs of FLOWERING LOCUS T are involved in the control of photoperiodic flowering in soybeanFanjiang Kong
Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
Plant Physiol 154:1220-31. 2010..by the PHYA-mediated photoperiodic regulation system, and the GmFT5a expression was also regulated by a photoperiod-independent system in LD...
- CONSTANS activates SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 through FLOWERING LOCUS T to promote flowering in ArabidopsisSeung Kwan Yoo
Plant Signaling Network Research Center, School of Life Sciences and Biotechnology, Korea University, Seoul
Plant Physiol 139:770-8. 2005..Taken together, these data suggest that CO activates SOC1 through FT to promote flowering in Arabidopsis...
- CONSTANS acts in the phloem to regulate a systemic signal that induces photoperiodic flowering of ArabidopsisHailong An
Max Planck Institute for Plant Breeding, Carl von Linne Weg 10, D 50829 Cologne, Germany
Development 131:3615-26. 2004....
- Effects of genetic perturbation on seasonal life history plasticityAmity M Wilczek
Department of Ecology and Evolutionary Biology, Brown University, Providence, RI 02912, USA
Science 323:930-4. 2009..Environmental signals control the timing of this transition, creating a critical window of acute sensitivity to genetic and climatic change that may be common for seasonally regulated life history traits...
- Move on up, it's time for change--mobile signals controlling photoperiod-dependent floweringYasushi Kobayashi
Department of Molecular Biology, Max Planck Institute for Developmental Biology, D 72076, Tubingen, Germany
Genes Dev 21:2371-84. 2007..and rice, we today understand the essentials of two central issues in plant biology: how the appropriate photoperiod generates an inductive stimulus based on an external coincidence mechanism, and the nature of the mobile ..
- Circadian control of carbohydrate availability for growth in Arabidopsis plants at nightAlexander Graf
Department of Metabolic Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom
Proc Natl Acad Sci U S A 107:9458-63. 2010..Thus, starch degradation is under circadian control to ensure that carbohydrate availability is maintained until the next anticipated dawn, and this control is necessary for maintaining plant productivity...
- Natural variation in Hd17, a homolog of Arabidopsis ELF3 that is involved in rice photoperiodic floweringKazuki Matsubara
National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, Japan
Plant Cell Physiol 53:709-16. 2012....
- Photic entrainment of period mutant mice is predicted from their phase response curvesJulie S Pendergast
Department of Biological Sciences, Vanderbilt University, Nashville, Tennessee 37235 1634, USA
J Neurosci 30:12179-84. 2010..Together, these results demonstrate that PRCs are powerful tools for predicting and understanding photic entrainment of circadian mutant mice...
- Terminal flower2, an Arabidopsis homolog of heterochromatin protein1, counteracts the activation of flowering locus T by constans in the vascular tissues of leaves to regulate flowering timeShinobu Takada
Research Institute for Biological Sciences, Okayama 716 1241, Japan
Plant Cell 15:2856-65. 2003....
- A molecular switch for photoperiod responsiveness in mammalsHugues Dardente
Institute of Biological and Environmental Sciences, Zoology Building, Tillydrone Avenue, University of Aberdeen, Aberdeen AB24 2TZ, UK
Curr Biol 20:2193-8. 2010Seasonal synchronization based on day length (photoperiod) allows organisms to anticipate environmental change. Photoperiodic decoding relies on circadian clocks, but the underlying molecular pathways have remained elusive ...
- A phase response curve to single bright light pulses in human subjectsSat Bir S Khalsa
Division of Sleep Medicine, Department of Medicine, Brigham and Women s Hospital, Harvard Medical School, Boston, MA 02115, USA
J Physiol 549:945-52. 2003..Phase shifts derived using the melatonin onsets showed larger magnitudes than those derived from the melatonin offsets. These data provide a comprehensive characterization of the human PRC under highly controlled laboratory conditions...
- Ancestral TSH mechanism signals summer in a photoperiodic mammalElodie A Hanon
School of Biological Sciences, University of Aberdeen, Aberdeen, Scotland
Curr Biol 18:1147-52. 2008..In mammals this provides the missing link between the pineal melatonin signal and thyroid-dependent seasonal biology...
- Phytochrome mediates the external light signal to repress FT orthologs in photoperiodic flowering of riceTakeshi Izawa
Laboratory of Plant Molecular Genetics, Nara Institute of Science and Technology, Ikoma, Nara 630 0101, Japan
Genes Dev 16:2006-20. 2002..experiments revealed that a rice counterpart gene of Arabidopsis CONSTANS (CO), named PHOTOPERIOD SENSITIVITY 1 (Heading date 1) [SE1 (Hd1)], functions as an output of circadian clocks...
- Involvement of thyrotropin in photoperiodic signal transduction in miceHiroko Ono
Laboratory of Animal Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Furo cho, Chikusa ku, Nagoya 464 8601, Japan
Proc Natl Acad Sci U S A 105:18238-42. 2008..In mammals, nocturnal melatonin secretion provides an endocrine signal of the photoperiod to the PT that contains melatonin receptors in high density, but the interface between the melatonin signal ..
- Constitutive expression of the CIRCADIAN CLOCK ASSOCIATED 1 (CCA1) gene disrupts circadian rhythms and suppresses its own expressionZ Y Wang
Department of Molecular, Cell, and Developmental Biology, UCLA, Los Angeles, California 90095 1606, USA
Cell 93:1207-17. 1998..Furthermore, the expression of both endogenous CCA1 and the related LHY gene was suppressed. Our results suggest that CCA1 is a part of a feedback loop that is closely associated with the circadian clock in Arabidopsis...
- Photoperiod and reproductive condition are associated with changes in RFamide-related peptide (RFRP) expression in Syrian hamsters (Mesocricetus auratus)Alex O Mason
Department of Psychology, University of California, Berkeley, CA 94720 1650, USA
J Biol Rhythms 25:176-85. 2010..In the present study, the authors explored the relationship between RFRP expression, photoperiod exposure, and reproductive condition/hormonal status...
- Arabidopsis plants having defects in nonsense-mediated mRNA decay factors UPF1, UPF2, and UPF3 show photoperiod-dependent phenotypes in development and stress responsesChuan Shi
Department of Medical Engineering and Biotechnology, University of Applied Sciences, Jena, 07745 Germany
J Integr Plant Biol 54:99-114. 2012..tomato strain DC3000. Under the long (16 h) photoperiod condition, Arabidopsis having a defect in NMD factors exhibited altered morphologies of various organs, ..
- RFamide-related peptide and its cognate receptor in the sheep: cDNA cloning, mRNA distribution in the hypothalamus and the effect of photoperiodH Dardente
School of Biological Sciences, Aberdeen University, Scotland, UK
J Neuroendocrinol 20:1252-9. 2008..Syrian hamsters, hypothalamic RFamide-related peptide (RFRP) expression is increased by exposure to long photoperiod. Because, opposite to hamsters, sheep are short-day breeders, we predicted that a conserved role in mammalian ..
- A pair of related genes with antagonistic roles in mediating flowering signalsY Kobayashi
Department of Botany, Graduate School of Science, Kyoto University, Sakyo ku, Kyoto 606 8502, Japan
Science 286:1960-2. 1999Flowering in Arabidopsis is promoted via several interacting pathways. A photoperiod-dependent pathway relays signals from photoreceptors to a transcription factor gene, CONSTANS (CO), which activates downstream meristem identity genes ..
- Genetic analysis and QTL detection of reproductive period and post-flowering photoperiod responses in soybeanLirui Cheng
The National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, 12 Zhongguancun South Street, Beijing, China
Theor Appl Genet 123:421-9. 2011..To investigate the inheritance and photoperiod response of RP in soybean, the F(1), F(2), and F(2:3) populations derived from nine crosses were developed...
- Modulation of sugar metabolism by an INDETERMINATE DOMAIN transcription factor contributes to photoperiodic flowering in ArabidopsisPil Joon Seo
Molecular Signaling Laboratory, Department of Chemistry, Seoul National University, Seoul 151 742, Korea
Plant J 65:418-29. 2011..SUS4 expression also responds to photoperiodic signals. Notably, the AtIDD8 gene is suppressed by sugar deprivation. Therefore, we conclude that AtIDD8 regulation of sugar transport and metabolism is linked to photoperiodic flowering...
- The pea GIGAS gene is a FLOWERING LOCUS T homolog necessary for graft-transmissible specification of flowering but not for responsiveness to photoperiodValerie Hecht
School of Plant Science, University of Tasmania, Hobart, Tasmania 7001, Australia
Plant Cell 23:147-61. 2011..different expression patterns with respect to developmental timing, tissue specificity, and response to photoperiod and differ in their activity in transgenic Arabidopsis thaliana, suggesting they may have different functions...
- The FLOWERING LOCUS T-like gene family in barley (Hordeum vulgare)Sebastien Faure
John Innes Centre, Norwich Research Park, Colney, Norwich NR4 7UH, United Kingdom
Genetics 176:599-609. 2007..in integrating flowering signals in Arabidopsis because its expression is regulated antagonistically by the photoperiod and vernalization pathways...
- The CCAAT binding factor can mediate interactions between CONSTANS-like proteins and DNAOrna Ben-Naim
Department of Biology, Technion Israel Institute of Technology, Haifa 32000, Israel
Plant J 46:462-76. 2006..CBFs are therefore likely to recruit COL proteins to their DNA target motifs in planta...
- Arabidopsis circadian clock and photoperiodism: time to think about locationTakato Imaizumi
Department of Biology, University of Washington, 24 Kincaid Hall, Box 351800, Seattle, WA 98195 1800, USA
Curr Opin Plant Biol 13:83-9. 2010..Subsequently, CO protein induces FLOWERING LOCUS T (FT) expression which leads to flowering. It is emerging that both CO and FT expression are intricately controlled by groups of transcription factors with overlapping functions...
- Daylength and circadian effects on starch degradation and maltose metabolismYan Lu
Department of Botany, University of Wisconsin, Madison, Wisconsin 53706, USA
Plant Physiol 138:2280-91. 2005..Light is necessary for the cycling of transcript levels and maltose levels. Under continuous darkness, these genes were barely expressed, and no cycling of maltose levels was observed...
- Biology of mammalian photoperiodism and the critical role of the pineal gland and melatoninB Malpaux
UMR 6073 INRA CNRS Université François Rabelais, Physiologie de la Reproduction et des Comportements, Nouzilly, France
J Biol Rhythms 16:336-47. 2001..In addition, this network appears to undergo morphological changes between seasons...
- COP1 and ELF3 control circadian function and photoperiodic flowering by regulating GI stabilityJae Woong Yu
Department of Plant Science and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 151 921, Korea
Mol Cell 32:617-30. 2008..we present data showing that COP1 acts with ELF3 to mediate day length signaling from CRY2 to GI within the photoperiod flowering pathway...
- Circadian rhythms confer a higher level of fitness to Arabidopsis plantsRachel M Green
Department of Molecular, Cell and Developmental Biology, P O Box 160606, University of California Los Angeles, Los Angeles, CA 90095 1606, USA
Plant Physiol 129:576-84. 2002..In addition, we demonstrate that two other circadian rhythm mutants, LHY-ox and elf3, have low-viability phenotypes. Our findings demonstrate the adaptive advantage of circadian rhythms in Arabidopsis...
- Photoreceptor regulation of CONSTANS protein in photoperiodic floweringFederico Valverde
Max Planck Institute for Plant Breeding, Carl von Linne Weg 10, D 50829 Cologne, Germany
Science 303:1003-6. 2004..This layer of regulation refines the circadian rhythm in CO messenger RNA and is central to the mechanism by which day length controls flowering...
- HvVRN2 responds to daylength, whereas HvVRN1 is regulated by vernalization and developmental statusBen Trevaskis
Commonwealth Scientific and Industrial Research Organization, Division of Plant Industry, Canberra, Australian Capital Territory 2601, Australia
Plant Physiol 140:1397-405. 2006..We conclude that the vernalization response is mediated through HvVRN1, whereas HvZCCTa and HvZCCTb respond to daylength cues to repress flowering under long days in nonvernalized plants...
- The FT-like ZCN8 Gene Functions as a Floral Activator and Is Involved in Photoperiod Sensitivity in MaizeXin Meng
Pioneer Hi Bred International, A DuPont Business, Johnston, Iowa 50131 0552
Plant Cell 23:942-60. 2011..ZCN8 stood out as the only ZCN having the requisite characteristics for possessing florigenic activity. In photoperiod sensitive tropical lines, ZCN8 transcripts were strongly upregulated in a diurnal manner under floral-inductive ..
- The art of entrainmentTill Roenneberg
Institute for Medical Psychology, University of Munich, Germany
J Biol Rhythms 18:183-94. 2003..The results of this basic research will help us to understand temporal ecology and will allow us to improve conditions for humans in industrialized societies...
- Hd3a and RFT1 are essential for flowering in riceReina Komiya
Laboratory of Plant Molecular Genetics, Nara Institute of Science and Technology, 8916 5 Takayama, Ikoma 630 0101, Japan
Development 135:767-74. 2008..These results indicate that Hd3a and RFT1 act as floral activators under SD conditions, and that RFT1 expression is partly regulated by chromatin modification...
- The molecular biology of seasonal flowering-responses in Arabidopsis and the cerealsAaron Greenup
Commonwealth Scientific and Industrial Research Organization, Division of Plant Industry, Canberra, Australian Capital Territory 2601, Australia
Ann Bot 103:1165-72. 2009..FT is a promoter of flowering activated by long days and by warm conditions. FLC represses FT to delay flowering until plants experience winter...
- A circadian rhythm set by dusk determines the expression of FT homologs and the short-day photoperiodic flowering response in PharbitisRyosuke Hayama
Max Planck Institute for Plant Breeding Research, D 50829 Cologne, Germany
Plant Cell 19:2988-3000. 2007....
- Long-distance, graft-transmissible action of Arabidopsis FLOWERING LOCUS T protein to promote floweringMichitaka Notaguchi
Department of Botany, Graduate School of Science, Kyoto University, Sakyo ku, Kyoto, 606 8502, Japan
Plant Cell Physiol 49:1645-58. 2008..The sequence and structure of mRNA are not of critical importance for the long-distance action of the FT gene. These observations led to the conclusion that the FT protein, but not mRNA, is the essential component of florigen...
- Population-based resequencing reveals that the flowering time adaptation of cultivated barley originated east of the Fertile CrescentHuw Jones
National Institute for Agricultural Botany, Cambridge, United Kingdom
Mol Biol Evol 25:2211-9. 2008....
- ELF4 is required for oscillatory properties of the circadian clockHarriet G McWatters
Department of Plant Sciences, University of Oxford, Oxford OX1 3RB, United Kingdom
Plant Physiol 144:391-401. 2007..ELF4, therefore, can be considered a component of the central CCA1/LHY-TOC1 feedback loop in the plant circadian clock...
- Interactions of the serotonin and circadian systems: nature and nurture in rhythms and bluesC M Ciarleglio
Silvio O Conte Center for Neuroscience Research, Vanderbilt University, Nashville, TN, USA
Neuroscience 197:8-16. 2011....
- Coincident light and clock regulation of pseudoresponse regulator protein 37 (PRR37) controls photoperiodic flowering in sorghumRebecca L Murphy
Department of Biochemistry and Biophysics, Texas A and M University, College Station, TX 77843, USA
Proc Natl Acad Sci U S A 108:16469-74. 2011..Sorghum is a short-day tropical species that exhibits substantial photoperiod sensitivity and delayed flowering in long days...
- A long noncoding RNA regulates photoperiod-sensitive male sterility, an essential component of hybrid riceJihua Ding
National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research, Huazhong Agriculture University, Wuhan 430070, China
Proc Natl Acad Sci U S A 109:2654-9. 2012..A major component that facilitated the development of hybrids was a mutant showing photoperiod-sensitive male sterility (PSMS) with its fertility regulated by day length...
- Light inputs shape the Arabidopsis circadian systemBénédicte Wenden
School of Biological Sciences, University of Edinburgh, Mayfield Road, Edinburgh EH93JH, UK
Plant J 66:480-91. 2011..Both experimental systems illustrate how profoundly the light input pathways affect the plant circadian clock, and provide strong experimental manipulations to understand critical steps in the plant clock mechanism...
- Involvement of rice cryptochromes in de-etiolation responses and floweringFumiaki Hirose
Department of Plant Physiology, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, 305 8602 Japan
Plant Cell Physiol 47:915-25. 2006..In addition, OsCRY2 antisense transgenic rice flowered later than WT under both long-day and short-day conditions, indicating that Oscry2 is involved in the promotion of flowering time in rice...
- Cloning of gonadotropin-releasing hormone I complementary DNAs in songbirds facilitates dissection of mechanisms mediating seasonal changes in reproductionT J Stevenson
Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, Maryland 21218, USA
Endocrinology 150:1826-33. 2009..Furthermore, we provide evidence for photoperiod-dependent regulation of GNRH1 mRNA in male starlings...
- Short photoperiods impair spatial learning and alter hippocampal dendritic morphology in adult male white-footed mice (Peromyscus leucopus)Leah M Pyter
Department of Neuroscience and Institute of Behavioral Medicine Research, Ohio State University, Columbus, Ohio 43210, USA
J Neurosci 25:4521-6. 2005..memory in rodents and because of the potential for seasonal plasticity in the hippocampus, we hypothesized that photoperiod alters hippocampal morphology to affect spatial learning and memory...
- Influence of photoperiod on hormones, behavior, and immune functionJames C Walton
Department of Neuroscience, The Ohio State University Medical Center, Columbus, OH 43210, USA
Front Neuroendocrinol 32:303-19. 2011..Thus, melatonin is the fulcrum mediating redistribution of energetic investment among physiological processes to maximize fitness and survival...
- Ehd3, encoding a plant homeodomain finger-containing protein, is a critical promoter of rice floweringKazuki Matsubara
National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305 8602, Japan
Plant J 66:603-12. 2011Oryza sativa (rice) flowers in response to photoperiod, and is a facultative short-day (SD) plant...
- Interactions between cognition and circadian rhythms: attentional demands modify circadian entrainmentHoward J Gritton
Department of Psychology, University of Michigan, Ann Arbor, MI 48109 1043, USA
Behav Neurosci 123:937-48. 2009..These results form the basis for future research on the role of neuronal systems mediating interactions between cognitive activity and circadian rhythms...
- Photoperiod affects hepatic and renal cadmium accumulation, metallothionein induction, and cadmium toxicity in the wild bank vole (Clethrionomys glareolus)T Włostowski
Institute of Biology, University of Białystok, Swierkowa 20B, Białystok 15 950, Poland
Ecotoxicol Environ Saf 58:29-36. 2004..injury, tubular cell degeneration) of bank voles fed the highest dose of dietary Cd only under the moderate photoperiod. The same voles also exhibited the highest values of hepatic and renal Cd, Cd not bound to MT, and renal lipid ..
- QTL mapping for photoperiod insensitivity of a Japanese soybean landrace SakamotowaseBaohui Liu
the Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
J Hered 101:251-6. 2010..The objective of this study was to map the novel gene(s) for photoperiod insensitivity in the Japanese soybean landrace Sakamotowase...
- The effect of temperature, photoperiod, and light quality on gluconasturtiin concentration in watercress (Nasturtium officinale R. Br.)Gerard Engelen-Eigles
Department of Horticultural Science, University of Minnesota, 1970 Folwell Avenue, 305 Alderman Hall, St Paul, Minnesota 55108, USA
J Agric Food Chem 54:328-34. 2006..to long (16 h) or short (8 h) days, to red (R) or far-red (FR) light given during the main long day photoperiod, and finally to R or FR light given at the end of the main photoperiod...
- Acute induction of Eya3 by late-night light stimulation triggers TSHβ expression in photoperiodismKoh hei Masumoto
Laboratory for Systems Biology, RIKEN Center for Developmental Biology, 2 2 3 Minatojima minamimachi, Chuo Ku, Kobe, Hyogo 650 0047, Japan
Curr Biol 20:2199-206. 2010Living organisms detect seasonal changes in day length (photoperiod) [1-3] and alter their physiological functions accordingly to fit seasonal environmental changes...
- Disrupted circadian rhythms in VIP- and PHI-deficient miceChristopher S Colwell
Mental Retardation Res Ctr, Univ of California Los Angeles, 760 Westwood Plaza, Los Angeles, CA 90024 1759, USA
Am J Physiol Regul Integr Comp Physiol 285:R939-49. 2003..is seen in the split-activity patterns expressed by the mutant mice when they were exposed to a skeleton photoperiod. In addition, the VIP/PHI-deficient mice exhibited deficits in the response of their circadian system to light...
- Melanopsin expression in dopamine-melatonin neurons of the premammillary nucleus of the hypothalamus and seasonal reproduction in birdsS W Kang
Department of Animal Science, University of Minnesota, St Paul, MN 55108, USA
Neuroscience 170:200-13. 2010..The results implicate tOPN4x in hypothalamic PMM DA-MEL neurons as an important component of the photoreceptive system regulating reproductive activity in temperate zone birds...
- Biological clocks and regulation of seasonal reproduction and migration in birdsVinod Kumar
Department of Science and Technology, University of Delhi, Delhi 110 007, India
Physiol Biochem Zool 83:827-35. 2010..Environmental cues, particularly photoperiod, appear to have a more direct role than simply entraining the clock to calendar time...
- Melatonin regulates type 2 deiodinase gene expression in the Syrian hamsterFlorent G Revel
Département de Neurobiologie des Rythmes, Centre National de la Recherche Scientifique Unite Mixte de Recherche, 7168 LC2, Institut des Neurosciences Cellulaires et Integratives, Universite Louis Pasteur, 67084 Strasbourg Cedex, France
Endocrinology 147:4680-7. 2006In seasonal species, photoperiod organizes various physiological processes, including reproduction...
- Time's arrow flies like a bird: two paradoxes for avian circadian biologyVincent M Cassone
Department of Biology, Thomas Hunt Morgan Building, University of Kentucky, 675 Rose Street, Lexington, KY 40506, USA
Gen Comp Endocrinol 163:109-16. 2009..Experimental analyses that address these paradoxes will shed light on the roles the biological clock play in birds and in vertebrates in general...
- VA opsin-based photoreceptors in the hypothalamus of birdsStephanie Halford
Circadian and Visual Neuroscience, Nuffield Laboratory of Ophthalmology, University of Oxford, Headley Way, Oxford OX3 9DU, UK
Curr Biol 19:1396-402. 2009..Most recently, photoperiod has been shown to alter the activity of the pars tuberalis to release thyrotrophin, which ultimately drives a ..
- Regulation of flowering time in Arabidopsis by K homology domain proteinsTodd C Mockler
Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
Proc Natl Acad Sci U S A 101:12759-64. 2004..In addition to FLK, the expression of two other KH domain genes are modestly affected by the flk mutation, suggesting a possible involvement of more than one KH domain protein in the regulation of flowering time in Arabidopsis...
- A maize CONSTANS-like gene, conz1, exhibits distinct diurnal expression patterns in varied photoperiodsTheresa A Miller
Department of Biological Sciences, Marquette University, Milwaukee, WI 53201 1881, USA
Planta 227:1377-88. 2008..mays L. ssp. parviglumis Iltis & Doebley), a plant requiring short day photoperiods to flower. While photoperiod sensitive landraces of maize exist, post-domestication breeding included efforts to grow maize in a broad range ..
- Validation of the VRN-H2/VRN-H1 epistatic model in barley reveals that intron length variation in VRN-H1 may account for a continuum of vernalization sensitivityPeter Szucs
Department of Crop and Soil Science, Oregon State University, 253 Crop Science Building, Corvallis, OR 97331, USA
Mol Genet Genomics 277:249-61. 2007..both VRN-H (Calicuchima-sib) loci and measured the flowering time of unvernalized F(2) progeny under long-day photoperiod. We assessed whether the spring growth habit of Calicuchima-sib is an exception to the two-locus epistatic ..
- Quantitative analysis of regulatory flexibility under changing environmental conditionsKieron D Edwards
School of Biological Sciences, University of Edinburgh, Edinburgh, UK
Mol Syst Biol 6:424. 2010..Molecular clock components in Arabidopsis thaliana showed complex, photoperiod-dependent regulation, which was analysed by comparison with three contrasting models...
- Circannual rhythms in birdsEberhard Gwinner
Max Planck Research Center for Ornithology, Department of Biological Rhythms and Behavior, Von der Tann Str 7, D 82346 Andechs, Germany
Curr Opin Neurobiol 13:770-8. 2003..Whether or not the rhythm is expressed depends on day length (photoperiod), which thus represents an important permissive factor in the process of rhythm generation...
- The circadian clock regulates the photoperiodic response of hypocotyl elongation through a coincidence mechanism in Arabidopsis thalianaYusuke Niwa
Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University, Chikusa ku, Nagoya 464 8601, Japan
Plant Cell Physiol 50:838-54. 2009..during the night-time of short days, due to coincidence between the internal (circadian rhythm) and external (photoperiod) time cues...
- The PAS/LOV protein VIVID supports a rapidly dampened daytime oscillator that facilitates entrainment of the Neurospora circadian clockMark Elvin
Faculty of Life Sciences, The University of Manchester, Manchester, M13 9PT, United Kingdom
Genes Dev 19:2593-605. 2005..Consistent with this, loss of VVD yields a clock whose performance follows the simple predictions of earlier models, and overexpression of VVD restores rhythmicity in the light and sensitivity of phase to the duration of the photoperiod.
- A thermosensory pathway controlling flowering time in Arabidopsis thalianaMiguel A Blázquez
Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California 92037, USA
Nat Genet 33:168-71. 2003..Molecular-genetic studies in Arabidopsis thaliana have focused on daily light duration, or photoperiod, and transient exposure to winter-like temperatures, or vernalization...
- The Arabidopsis homeobox gene, ATHB16, regulates leaf development and the sensitivity to photoperiod in ArabidopsisYan Wang
Evolutionary Biology Centre, Department of Physiological Botany, Uppsala University, Villavagen 6, S 752 36 Uppsala, Sweden
Dev Biol 264:228-39. 2003..Furthermore, the flowering time response to photoperiod was increased in plants with reduced ATHB16 levels but reduced in plants with elevated ATHB16 levels, ..
- Universal florigenic signals triggered by FT homologues regulate growth and flowering cycles in perennial day-neutral tomatoEliezer Lifschitz
Department of Biology, Technion I I T Haifa, 32000, Israel
J Exp Bot 57:3405-14. 2006..The florigen paradigm was conceived in photoperiod-sensitive plants: nevertheless it implies that although activated by different stimuli in different flowering ..
- Novel loci control variation in reproductive timing in Arabidopsis thaliana in natural environmentsCynthia Weinig
Department of Ecology and Evolutionary Biology, Brown University, Providence, Rhode Island 02912, USA
Genetics 162:1875-84. 2002..days in the chamber were expressed only in fall-germinating cohorts, suggesting differential involvement of the photoperiod pathway in different seasonal environments...
- Seasonal encoding by the circadian pacemaker of the SCNHenk Tjebbe VanderLeest
Department of Molecular Cell Biology, Lab for Neurophysiology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands
Curr Biol 17:468-73. 2007..48 and 3.85 hr, respectively). The data indicate that coding for day length involves plasticity within SCN neuronal networks in which the phase distribution of oscillating neurons carries information on the photoperiod's duration.
- Low-temperature and daylength cues are integrated to regulate FLOWERING LOCUS T in barleyMegan N Hemming
Commonwealth Scientific and Industrial Research Organisation, Division of Plant Industry, Canberra, Australian Capital Territory 2601, Australia
Plant Physiol 147:355-66. 2008..We conclude that low-temperature and daylength flowering-response pathways are integrated to control expression of HvFT1 in barley, and that this might occur through regulation of HvVRN2 activity...
- Photoperiod and acute energy deficits interact on components of the thyroid hormone system in hypothalamic tanycytes of the Siberian hamsterAnnika Herwig
Rowett Institute of Nutrition and Health, University of Aberdeen, Bucksburn, Aberdeen AB21 9SB, UK
Am J Physiol Regul Integr Comp Physiol 296:R1307-15. 2009..Eight weeks in an SD photoperiod induced weight loss in the Siberian hamster...
- Spatiotemporal heterogeneity in the electrical activity of suprachiasmatic nuclei neurons and their response to photoperiodT M Brown
University of Manchester, Manchester, UK
J Biol Rhythms 24:44-54. 2009..We demonstrate that under a symmetrical (12 h light:12 h dark) photoperiod, cells in the dorsal SCN are less tightly synchronized than those in the ventral SCN...
- Short photoperiod-induced decrease of histamine H3 receptors facilitates activation of hypothalamic neurons in the Siberian hamsterP Barrett
Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen AB21 9SB, United Kingdom
Endocrinology 150:3655-63. 2009..Here we show for the first time that a shift from long summer-like to short winter-like photoperiod, which induces physiological adaptation to winter in the Siberian hamster, including a body weight decrease of ..
- Genetic control of photoperiod sensitivity in maize revealed by joint multiple population analysisNathan D Coles
Department of Crop Science, North Carolina State University, Raleigh, North Carolina 27695, USA
Genetics 184:799-812. 2010Variation in maize for response to photoperiod is related to geographical adaptation in the species...
- The thyrotropin-releasing hormone secretory system in the hypothalamus of the Siberian hamster in long and short photoperiodsF J P Ebling
School of Biomedical Sciences, University of Nottingham Medical School, Nottingham, UK
J Neuroendocrinol 20:576-86. 2008..of TRH producing neurones and TRH-R1 receptor expressing cells in the hypothalamus, and investigated whether photoperiod regulated this system...
- MOLECULAR ANALYSIS OF FLOWERING GENES OF PHARBITIS NILAnath Das; Fiscal Year: 1991The goal of this research is to understand the molecular mechanism of floral induction in plants. How photoperiod, a crucial controlling factor, regulates floral induction in a short-day plant Pharbitis nil is the subject of the ..
- MELATONIN AND CEREBRAL BLOOD FLOW AUTOREGULATIONMohan Viswanathan; Fiscal Year: 2000Melatonin, a neuroendocrine transducer of photoperiod, is used by mammals to establish and maintain circadian rhythms. Melatonin receptors which mediate these functions are believed to be located in the hypothalamus...
- MECHANISMS GOVERNING ONSET OF OVARIAN FUNCTIONKathleen Ryan; Fiscal Year: 1990..of control groups which are the same age and body weight as the pubertal females, but due to the nonstimulatory photoperiod, they are 10-12 weeks from puberty...
- FAT CELL PROLIFERATION IN OBESITY--MODULATING FACTORSRoy Martin; Fiscal Year: 1999..accompanies old age: Wistar rats; 3) diet-induced obesity: high fat diet (HFD)-fed Wistar rats; 4) seasonal (photoperiod)-induced obesity: Syrian hamsters; and 5) hyperplastic model: Guinea pig...
- ENVIRONMENTAL CONTROL OF SEASONAL WEIGHT CYCLESGeorge Wade; Fiscal Year: 1992..The principal environmental cue for seasonal body weight change in hamsters is photoperiod, the number of hours of light per 24-hr period...
- MECHANISMS GOVERNING INITIATION OF OVULATIONDouglas Foster; Fiscal Year: 1980..Using a model system to be developed during the course of the research, the influence of environment, photoperiod, and body weight on the mechanism governing sensitivity to the negative feedback of estradiol during sexual ..
- DEVELOPING AND IMPROVING INSTITUTIONAL ANIMAL RESOURCESGEORGE BJOTVEDT; Fiscal Year: 1991..These chambers would allow experimental manipulation of variables such as temperature, photoperiod, and humidity to assess effect of these factors on various aspects of the biology of animals including their ..
- ETHANOL AND THE NEUROBIOLOGY OF TEMPERATURE REGULATIONLARRY CRAWSHAW; Fiscal Year: 1990..the effect of ethanol on temperature regulation during, and under changes in a variety of conditions--time of photoperiod, acute tolerance, chronic tolerance and withdrawal...
- Massively parallel sequencing of the diapause transcriptome in Aedes albopictusChristine Elsik; Fiscal Year: 2010..PUBLIC HEALTH RELEVANCE Photoperiodic diapause refers to the ability of insects to measure day length (photoperiod) as a cue for initiating seasonally appropriate patterns of developmental arrest...
- MATERNAL INFLUENCE ON DEVELOPING 24-HOUR PERIODICITYSTEVEN REPPERT; Fiscal Year: 1991..Testicular weight will be used to study the influence of prenatal photoperiod on postnatal reproductive development...
- CNS MELATONIN TARGETS AND PHOTOPERIOD-INDUCED OBESITYTimothy Bartness; Fiscal Year: 2000..activated by melatonin and located in the three brain sites that show melatonin binding?, and 3) Can these putative efferent projection fields be verified using retrograde tract tracing combined with c-Fos immunocytochemical techniques? ..
- NEUROENDOCRINE/IMMUNE INTERACTIONS: ROLE OF MELATONINSTEVEN YELLON; Fiscal Year: 2002..rhythm, the major focus of the proposal is to test the hypothesis that the pineal melatonin rhythm mediates photoperiod control of innate and adaptive immune system functions...
- NEUROENDOCRINE BASIS OF SEASONAL BREEDINGMichael Lehman; Fiscal Year: 1991..In the Suffolk ewe, environmental cues conveying daylength (photoperiod) and endogenous steroid hormones regulate the activity of the LHRH pulse generator, and are responsible for the ..
- Photoperiod affects retinal functionChad R Jackson; Fiscal Year: 2012..2009). Recently, it was also shown that the melanopsin system in zebrafish is responsive to alterations in photoperiod (Matos-Cruz, V. et al., 2011)...
- NEUROENDOCRINOLOGY OF PUBERTYSTEVEN YELLON; Fiscal Year: 1990..model, provides an unique opportunity for this proposal because sexual maturation is profoundly influenced by photoperiod; changes in day length can delay or initiate puberty...