Assistant Professor of Biology
Publication TagsGenomics Genes Genome Color Songbirds Plumage Mitochondrial Dna Introgression Pigmentation Birds Reproductive Isolation Polymorphism Gene Flow Carotenoids Phenotype Animals Single Nucleotide Polymorphism Pollen Feathers Setophaga Methodology Biogeography Chromosomes Divergence Nucleotides
Most Recent Papers
Molecular assays of pollen use consistently reflect pollinator visitation patterns in a system of flowering plants
Aubrie R.M. James, Monica A. Geber, David P.L. Toews, 2022, Molecular Ecology Notes on p. 361-374
Signatures of mitonuclear coevolution in a warbler species complex
Silu Wang, Madelyn J. Ore, Else K. Mikkelsen, Julie Lee-Yaw, David P.L. Toews, Sievert Rohwer, Darren Irwin, 2021, Nature Communications
Rare hybrid solves “genetic problem” of linked plumage traits
Marcella D. Baiz, Andrew W. Wood, David P.L. Toews, 2021, Ecology
Extensive historical and contemporary hybridization suggests premating isolation in Vermivora warblers is not strong
David P.L. Toews, Marcella D. Baiz, Gunnar R. Kramer, Irby J. Lovette, Henry M. Streby, Scott A. Taylor, 2021, Ecology and Evolution on p. 10720-10723
Pigmentation Genes Show Evidence of Repeated Divergence and Multiple Bouts of Introgression in Setophaga Warblers
Marcella D. Baiz, Andrew W. Wood, Alan Brelsford, Irby J. Lovette, David P.L. Toews, 2021, Current Biology on p. 643-649.e3
Comparing divergence landscapes from reduced-representation and whole genome resequencing in the yellow-rumped warbler (Setophaga coronata) species complex
Stephanie J. Szarmach, Alan Brelsford, Christopher C. Witt, David P.L. Toews, 2021, Molecular Ecology
Selection on a small genomic region underpins differentiation in multiple color traits between two warbler species
Silu Wang, Sievert Rohwer, Devin R. de Zwaan, David P.L. Toews, Irby J. Lovette, Jacqueline Mackenzie, Darren Irwin, 2020, Evolution Letters on p. 502-515
Genomic identification of intergeneric hybrids in New World wood-warblers (Aves Parulidae)
David P.L. Toews, Gunnar R. Kramer, Andrew W. Jones, Courtney L. Brennan, Benjamin E. Cloud, David E. Andersen, Irby J. Lovette, Henry Streby, 2020, Biological Journal of the Linnean Society on p. 183-191
Genomic and plumage variation in Vermivora hybrids
Marcella D. Baiz, Gunnar R. Kramer, Henry M. Streby, Scott A. Taylor, Irby J. Lovette, David P.L. Toews, 2020, Ornithology
David P.L. Toews, Marcella D. Baiz, 2020, Current Biology on p. R309-R311
The biogeography of mitochondrial and nuclear discordance in animals
David P.L. Toews, Alan Brelsford, 2012, Molecular Ecology on p. 3907-3930
Plumage Genes and Little Else Distinguish the Genomes of Hybridizing Warblers
David P.L. Toews, Scott A. Taylor, Rachel Vallender, Alan Brelsford, Bronwyn G. Butcher, Philipp W. Messer, Irby J. Lovette, 2016, Current Biology on p. 2313-2318
Migration, mitochondria, and the yellow-rumped warbler
David P.L. Toews, Milica Mandic, Jeffrey G. Richards, Darren E. Irwin, 2014, Evolution; international journal of organic evolution on p. 241-255
The Evolution and Genetics of Carotenoid Processing in Animals
David P.L. Toews, Natalie R. Hofmeister, Scott A. Taylor, 2017, Trends in Genetics on p. 171-182
The Genetics of Seasonal Migration and Plumage Color
Kira E. Delmore, David P.L. Toews, Ryan R. Germain, Gregory L. Owens, Darren E. Irwin, 2016, Current Biology on p. 2167-2173
Genomic approaches to understanding population divergence and speciation in birds
David P.L. Toews, Leonardo Campagna, Scott A. Taylor, Christopher N. Balakrishnan, Daniel T. Baldassarre, Petra E. Deane-Coe, Michael G. Harvey, Daniel M. Hooper, Darren E. Irwin, Caroline D. Judy, Nicholas A. Mason, John E. McCormack, Kevin G. McCracken, Carl H. Oliveros, Rebecca J. Safran, Elizabeth S.C. Scordato, Katherine Faust Stryjewski, Anna Tigano, J. Albert C. Uy, Benjamin M. Winger, 2015, Ornithology on p. 13-30
A comparison of genomic islands of differentiation across three young avian species pairs
Darren E. Irwin, Borja Milá, David P.L. Toews, Alan Brelsford, Haley L. Kenyon, Alison N. Porter, Christine Grossen, Kira E. Delmore, Miguel Alcaide, Jessica H. Irwin, 2018, Molecular Ecology on p. 4839-4855
Genetics and evidence for balancing selection of a sex-linked colour polymorphism in a songbird
Kang Wook Kim, Benjamin C. Jackson, Hanyuan Zhang, David P.L. Toews, Scott A. Taylor, Emma I. Greig, Irby J. Lovette, Mengning M. Liu, Angus Davison, Simon C. Griffith, Kai Zeng, Terry Burke, 2019, Nature Communications on p. 1852
Admixture mapping in a hybrid zone reveals loci associated with avian feather coloration
Alan Brelsford, David P.L. Toews, Darren E. Irwin, 2017, Proceedings of the Royal Society B: Biological Sciences on p. 20171106
Genomic variation across the yellow-rumped warbler species complex
David P.L. Toews, Alan Brelsford, Christine Grossen, Borja Milá, Darren E. Irwin, 2016, Ornithology on p. 698-717
News Articles Featuring David Toews
Jan 24, 2022
Penn State biologists explore the secrets of the warbler genome
Looking through binoculars at the trees in their backyards during the pandemic, many brand-new birders may have been surprised by the diversity of visitors stopping by — finches, jays and warblers in an astounding array of yellows, blues and reds.
Jun 28, 2021
Weird warbler reveals genetics of its mismatched colors
An incredibly rare hybrid warbler with mismatched color patterns has allowed researchers to disentangle the genetic drivers of two traits that usually come as a package deal — the black face mask and the black throat patch in blue-winged and golden-winged warblers.
Nov 30, 2020
Warbler coloration shaped by evolution via distinct paths
Two genes that are important for the diverse colors and patterns of warbler plumage have evolved through two very different processes, according to a new study led by Penn State researchers. These evolutionary processes could help explain the rapid evolution of these songbirds into so many unique species.
Sep 01, 2020
The Gene that Makes Female Birds Drab
In some finch species, the difference between colorful males and muted females comes down to one gene, BCO2, which encodes an enzyme that degrades carotenoids.
Jul 14, 2020
What determines a warbler's colors?
A new study has narrowed down the region of the genome that drives the black color in throat and face of warblers by studying the hybrid offspring produced when two species mate.
Oct 25, 2019
Bird Migration Is Written In Their Genes
A team of researchers has identified a single gene associated with migration in songbirds by combining whole genome sequencing with migration tracking technology for the first time ever
Sep 04, 2019
New insights into genetic basis of bird migration
Genetics of bird migration also associated with neurological disorder in humans
Aug 28, 2019
New insights into genetic basis of bird migration
A gene newly associated with the migratory patterns of golden-winged and blue-winged warblers could lend insight into the longstanding question of how birds migrate across such long distances.
Apr 27, 2019
This finch has a coat of many colors, but its head hue is the key
Gouldian finches are flashy birds. Native to Australia, they seem to wear a kaleidoscope of bright rainbow feathers. But there are three distinct color variations with individuals having a red, black or yellow head.
Apr 23, 2019
Varying head colors of Gouldian finches explained by unique evolutionary process
The heads of Gouldian finches feature one of three different colors: yellow, red and black. Now, scientists know why the pressures of natural selection have failed to erase the species' color variation.