9 Works

Data from: Eggshell coloration reflects both yolk characteristics and dietary carotenoid history of female mallards

Michael W. Butler & Kevin J. McGraw
1. Avian eggshell coloration has frequently been examined in a functional context (e.g. mimicry, camouflage), but in recent years, an interest has emerged in identifying the mechanisms that drive eggshell colour variation. 2. Eggshell coloration is predominately caused by pigment deposition; one such pigment is the antioxidant biliverdin, and deposition of biliverdin into eggshells may be costly to mothers due to depletion of their antioxidant reserves. Previous work has shown that dietary supplementation during laying...

Data from: Genome reannotation of the lizard Anolis carolinensis based on 14 adult and embryonic deep transcriptomes

Walter L. Eckalbar, Elizabeth D. Hutchins, Glenn J. Markov, April N. Allen, Jason J. Corneveaux, Kerstin Lindblad-Toh, Federica Di Palma, Matthew J. Huentelman, Kenro Kusumi & Jessica Alföldi
Background: The green anole lizard, Anolis carolinensis, is a key species for both laboratory and field-based studies of evolutionary genetics, development, neurobiology, physiology, behavior, and ecology. As the first non-avian reptilian genome sequenced, A. carolinesis is also a prime reptilian model for comparison with other vertebrate genomes. The public databases of Ensembl and NCBI have provided a first generation gene annotation of the anole genome that relies primarily on sequence conservation with related species. A...

Data from: Cuticular hydrocarbon divergence in the jewel wasp Nasonia: evolutionary shifts in chemical communication channels?

Jan Buellesbach, Juergen Gadau, Leo W. Beukeboom, Felix Echinger, Rhitoban Raychoudhury, Jack H. Werren & Thomas Schmitt
The evolution and maintenance of intraspecific communication channels constitutes a key feature of chemical signaling and sexual communication. However, how divergent chemical communication channels evolve while maintaining their integrity for both sender and receiver is poorly understood. In the present study, we compare male and female cuticular hydrocarbon (CHC) profiles in the jewel wasp genus Nasonia, analyze their chemical divergence, and investigate their role as species-specific sexual signaling cues. Males and females of all four...

Data from: Multilocus phylogeographic assessment of the California Mountain Kingsnake (Lampropeltis zonata) suggests alternative patterns of diversification for the California Floristic Province

Edward A. Myers, Javier A. Rodríguez-Robles, Dale F. DeNardo, Richard E. Staub, Alyssa Stropoli, Sara Ruane & Frank T. Burbrink
Phylogeographic inference can determine the timing of population divergence, historical demographic processes, patterns of migration, and when extended to multiple species, the history of communities. Single locus analyses can mislead interpretations of the evolutionary history of taxa and comparative analyses. It is therefore important to revisit previous single-locus phylogeographic studies, particularly those that have been used to propose general patterns for regional biotas and the processes responsible for generating inferred patterns. Here we employ a...

Data from: Time-series analysis reveals genetic responses to intensive management of razorback sucker (Xyrauchen texanus)

Thomas E. Dowling, Thomas F. Turner, Evan W. Carson, Melody J. Saltzgiver, Deborah Adams, Brian Kesner & Paul C. Marsh
Time-series analysis is used widely in ecology to study complex phenomena, and may have considerable potential to clarify relationships of genetic and demographic processes in natural and exploited populations. We explored the utility of this approach to evaluate population responses to management in razorback sucker, a long-lived and fecund, but declining freshwater fish species. A core population in Lake Mohave (Arizona-Nevada, USA) has experienced no natural recruitment for decades, and is maintained by harvesting naturally...

Data from: Evolution of carotenoid pigmentation in caciques and meadowlarks (Icteridae): repeated gains of red plumage coloration by carotenoid C4-oxygenation

Nicholas R. Friedman, Kevin J. McGraw & Kevin E. Omland
Many animals use carotenoid pigments to produce yellow, orange, and red coloration. In birds, at least 10 carotenoid compounds have been documented in red feathers; most of these are produced through metabolic modification of dietary precursor compounds. However, it is poorly understood how lineages have evolved the biochemical mechanisms for producing red coloration. We used high-performance liquid chromatography to identify the carotenoid compounds present in feathers from 15 species across two clades of blackbirds (the...

Data from: Temporal variation favors the evolution of generalists in experimental populations of Drosophila melanogaster

Catriona Condon, Brandon S. Cooper, Sam Yeaman, & Michael J. Angilletta
In variable environments, selection should favor generalists that maintain fitness across a range of conditions. However, costs of adaptation may generate fitness trade-offs and lead to some compromise between specialization and generalization that maximizes fitness. Here, we evaluate the evolution of specialization and generalization in 20 populations of Drosophila melanogaster experimentally evolved in constant and variable thermal environments for 3 years. We developed genotypes from each population at two temperatures after which we measured fecundity...

Data from: Lysozyme-associated bactericidal activity in the ejaculate of a wild passerine

Melissah Rowe, Gábor Árpád Czirják, Jan Lifjeld, Mathieu T. Giraudeau, Jan T. Lifjeld & Mathieu Giraudeau
Numerous antibacterial substances have been identified in the ejaculates of animals and are suggested to protect sperm from bacterial-induced damage in both the male and female reproductive tracts. Lysozymes, enzymes that exhibit bactericidal activity through their ability to break down bacterial cell walls, are likely to be particularly important for sperm defence as they are part of the constitutive innate immune system and are thus immediately available to protect sperm from bacterial attack. Birds are...

Data from: Chameleons communicate with complex colour changes during contests: different body regions convey different information

Russell A. Ligon & Kevin J. McGraw
Many animals display static coloration (e.g. of feathers or fur) that can serve as a reliable sexual or social signal, but the communication function of rapidly changing colours (as in chameleons and cephalopods) is poorly understood. We used recently developed photographic and mathematical modelling tools to examine how rapid colour changes of veiled chameleons Chamaeleo calyptratus predict aggressive behaviour during male–male competitions. Males that achieved brighter stripe coloration were more likely to approach their opponent,...

Registration Year

  • 2013

Resource Types

  • Dataset


  • Arizona State University
  • City University of New York
  • University of Groningen
  • University of Nevada Reno
  • University of Oslo
  • University of Rochester
  • University of Freiburg
  • Translational Genomics Research Institute
  • Indiana University Bloomington
  • University of Maryland, Baltimore County