Research Topics
Genomes and GenesSpecies | Jeffrey P TownsendSummaryAffiliation: Yale University Country: USA Publications
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Publications
Phylogenetic signal and noise: predicting the power of a data set to resolve phylogenyJeffrey P Townsend
Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, USA
Syst Biol 61:835-49. 2012..The predicted power of resolution for the loci analyzed is consistent with the historic use of the genes in phylogenetics...
Codon Deviation Coefficient: a novel measure for estimating codon usage bias and its statistical significanceZhang Zhang
Computational Bioscience Research Center CBRC, King Abdullah Universitof Science and Technology KAUST, Thuwal 23955 6900, Kingdom of Saudi Arabia
BMC Bioinformatics 13:43. 2012..However, extant measures of CUB have not fully accounted for the quantitative effect of background nucleotide composition and have not statistically evaluated the significance of CUB in sequence analysis...
Evolving gene expression: from G to E to GxEAndrea Hodgins-Davis
Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, USA
Trends Ecol Evol 24:649-58. 2009..We review the literature on the evolution of gene expression in terms of genetics (G), environmental response (E) and GxE interactions to make this conceptual point...
The phylogenetic informativeness of nucleotide and amino acid sequences for reconstructing the vertebrate treeJeffrey P Townsend
Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, USA
J Mol Evol 67:437-47. 2008....
Sleuthing the difference a nucleotide can makeJeffrey P Townsend
Department of Ecology and Evolutionary Biology, Yale University, 165 Prospect Street, New Haven, CT 06520, USA
Mol Ecol 17:2793-5. 2008..The finding also calls for further data, clarifying the kinds of genetic variation that constitute gene expression polymorphism between individuals in natural populations...
Optimal selection of gene and ingroup taxon sampling for resolving phylogenetic relationshipsJeffrey P Townsend
Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, USA
Syst Biol 59:446-57. 2010..Gene and taxon sampling according to the theory herein and following a "deepest ingroup" heuristic are shown to provide significantly improved resolution of specified deep internodes...
Profiling phylogenetic informativenessJeffrey P Townsend
Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut 06520, USA
Syst Biol 56:222-31. 2007..Moreover, it provides a quantitative measure of the capacity of a gene to resolve soft polytomies...
The filamentous fungal gene expression database (FFGED)Zhang Zhang
Department of Ecology and Evolutionary Biology, Yale University, 165 Prospect Street, New Haven, CT 06520, USA
Fungal Genet Biol 47:199-204. 2010..A clear and efficient web interface is provided with enhancement by AJAX (Asynchronous JavaScript and XML) and through a collection of tools to effectively facilitate data submission, sharing, retrieval and visualization...
Multi-targeted priming for genome-wide gene expression assaysAleksandra B Adomas
Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06511, USA
BMC Genomics 11:477. 2010..We then experimentally tested whether degenerately priming these motifs with multi-targeted primers improved the accuracy and completeness of transcriptomic assays...
Abundant gene-by-environment interactions in gene expression reaction norms to copper within Saccharomyces cerevisiaeAndrea Hodgins-Davis
Department of Ecology and Evolutionary Biology, Yale University, USA
Genome Biol Evol 4:1061-79. 2012....
LOX: inferring Level Of eXpression from diverse methods of census sequencingZhang Zhang
Department of Ecology and Evolutionary Biology and Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT 06520, USA
Bioinformatics 26:1918-9. 2010..AVAILABILITY: http://www.yale.edu/townsend/software.html..
Evolution of reproductive morphology in leaf endophytesZheng Wang
Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut, USA
PLoS ONE 4:e4246. 2009..Intriguingly, resemblance between asexual conidiomata and sexual ascomata in some leotiomycetes implicates some common developmental pathways for sexual and asexual development in these fungi...
Sex-specific gene expression during asexual development of Neurospora crassaZheng Wang
Department of Ecology and Evolutionary Biology, Yale University, 165 Prospect Street, New Haven, CT 06520, USA
Fungal Genet Biol 49:533-43. 2012..Further investigation of the impact of light and the roles of light response genes in asexual development of both mating types are warranted...
HCLS 2.0/3.0: health care and life sciences data mashup using Web 2.0/3.0Kei Hoi Cheung
Center for Medical Informatics, Yale University, 300 George Street, Suite 501, New Haven, CT 06511, USA
J Biomed Inform 41:694-705. 2008..We discuss the areas of intersection of Web 2.0 and Semantic Web, and describe the potential benefits that can be brought to HCLS research by combining these two sets of technologies...
Tasting soil fungal diversity with earth tongues: phylogenetic test of SATé alignments for environmental ITS dataZheng Wang
Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut, United States of America
PLoS ONE 6:e19039. 2011..Environmental sampling holds the key to many focal questions in mycology, and simultaneous alignment and tree estimation, as performed by SATé, can be a highly efficient companion in that pursuit...
Identification of new molecular markers for assembling the eukaryotic tree of lifeYonas I Tekle
Department of Biological Sciences, Smith College, Northampton, MA, USA
Mol Phylogenet Evol 55:1177-82. 2010..Finally, we present phylogenetic informativeness profiles for seven selected markers, revealing that the markers contain phylogenetic signal that spans the whole tree including the deeper branches...
Resampling QTL effects in the QTL sign test leads to incongruous sensitivity to variance in effect sizeDaniel P Rice
Department of Ecology and Evolutionary Biology and Program in Computational Biology and Bioinformatics, YaleUniversity, New Haven, CT 06520, USA
G3 (Bethesda) 2:905-11. 2012....
Differential impact of nutrition on developmental and metabolic gene expression during fruiting body development in Neurospora crassaZheng Wang
Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, USA
Fungal Genet Biol 49:405-13. 2012..This result facilitates comparative studies that will require different nutritional resources for sexual development in different fungi...
PhyDesign: an online application for profiling phylogenetic informativenessFrancesc Lopez-Giraldez
Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut, USA
BMC Evol Biol 11:152. 2011..However, no software or automated methodology to evaluate sequence alignments and estimate the phylogenetic informativeness metric has been available...
Cost-effectiveness of a community-based intervention for reducing the transmission of Schistosoma haematobium and HIV in AfricaMartial L Ndeffo Mbah
School of Public Health, and Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520
Proc Natl Acad Sci U S A 110:7952-7. 2013..hematobium is an economically attractive strategy for reducing schistosomiasis and HIV transmission in sub-Saharan Africa that would have a powerful impact on averting infections and saving lives...
Controlling antimicrobial resistance through targeted, vaccine-induced replacement of strainsYonas I Tekle
Department of Epidemiology and Public Health, Yale University School of Medicine, New Haven, Connecticut, United States of America
PLoS ONE 7:e50688. 2012..The broader utility of vaccine-based resistance control strategies should be further explored taking into account population structure, and the resistance and transmission patterns of the pathogen considered...
Maximum-likelihood model averaging to profile clustering of site types across discrete linear sequencesZhang Zhang
Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut, United States of America
PLoS Comput Biol 5:e1000421. 2009....
Bringing Web 2.0 to bioinformaticsZhang Zhang
Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut 06520, USA
Brief Bioinform 10:1-10. 2009..We discuss lessons from information technology, predict the next generation of Web (Web 3.0), and describe its potential impact on the future of bioinformatics studies...
Reevaluation of epidemiological data demonstrates that it is consistent with cross-immunity among human papillomavirus typesDavid P Durham
Department of Epidemiology and Public Health, Yale University School of Medicine, New Haven, CT 06520 8034, USA
J Infect Dis 206:1291-8. 2012..Epidemiological data on HPV infections has been repeatedly interpreted as inconsistent with cross-immunity...
A test for selection employing quantitative trait locus and mutation accumulation dataDaniel P Rice
Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut 06520, USA
Genetics 190:1533-45. 2012..Our test thus represents the first integration of population genetic theory and QTL data to measure the historical influence of selection...
RBE controls microRNA164 expression to effect floral organogenesisTengbo Huang
Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06520 8104, USA
Development 139:2161-9. 2012..These results indicate that one role of RBE is to fine-tune miR164 expression to regulate the CUC1 and CUC2 effector genes, which, in turn, regulate developmental events required for sepal and petal organogenesis...
Quantifying variation in gene expressionTravis A Clark
Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, USA
Mol Ecol 16:2613-6. 2007
Concerted evolution in the repeats of an immunomodulating cell surface protein, SOWgp, of the human pathogenic fungi Coccidioides immitis and C. posadasiiHanna Johannesson
Department of Evolution, Genomics and Systematics, Evolutionary Biology Centre, Uppsala University, Sweden
Genetics 171:109-17. 2005....
Pathway Processor: a tool for integrating whole-genome expression results into metabolic networksPaul Grosu
Bauer Center for Genomics Research, Harvard University, Cambridge, Massachusetts 02138, USA
Genome Res 12:1121-6. 2002..This program features a graphical output displaying differences in expression on metabolic charts of the biochemical pathways to which the open reading frames are assigned...
Ecological and evolutionary genomics of Saccharomyces cerevisiaeChristian R Landry
Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
Mol Ecol 15:575-91. 2006....
Population structure and gene evolution in Saccharomyces cerevisiaeErlend Aa
Department of Pharmacy, University of Troms, Troms, Norway
FEMS Yeast Res 6:702-15. 2006..cerevisiae, is the first study to demonstrate population structure within S. cerevisiae, and the first study to detect historical selection on a locus important to the natural history of wine yeast...
Long-oligomer microarray profiling in Neurospora crassa reveals the transcriptional program underlying biochemical and physiological events of conidial germinationTakao Kasuga
Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720-3102, USA
Nucleic Acids Res 33:6469-85. 2005....
Horizontal acquisition of divergent chromosomal DNA in bacteria: effects of mutator phenotypesJeffrey P Townsend
Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138, USA
Genetics 164:13-21. 2003..We conclude that mutators can accelerate bacterial adaptation when desired genetic variability is present within DNA fragments of up to approximately 30% divergence...
Population genetic variation in genome-wide gene expressionJeffrey P Townsend
Department of Organismic and Evolutionary Biology, Harvard University, USA
Mol Biol Evol 20:955-63. 2003..Genetic variation in gene expression among isolates from a natural population is present on a genomic scale. It remains to be determined what role differential gene expression may play in adaptation to new or changing environments...
Bayesian analysis of gene expression levels: statistical quantification of relative mRNA level across multiple strains or treatmentsJeffrey P Townsend
Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138, USA
Genome Biol 3:RESEARCH0071. 2002..This framework can be used to analyze normalized microarray data acquired by any replicated experimental design in which any number of treatments, genotypes, or developmental states are studied using a continuous chain of comparisons...
Eukaryotic microbes, species recognition and the geographic limits of species: examples from the kingdom FungiJohn W Taylor
Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720 3102, USA
Philos Trans R Soc Lond B Biol Sci 361:1947-63. 2006..The final step in speciation, reproductive isolation, also follows genetic isolation and may precede morphological change...
Horizontal gene transfer, genome innovation and evolutionJ Peter Gogarten
Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut 06269 3125, USA
Nat Rev Microbiol 3:679-87. 2005....
