13 Works

Data from: A garter snake transcriptome: pyrosequencing, de novo assembly, and sex-specific differences

Tonia S. Schwartz, Hongseok Tae, Youngik Yang, Keithanne Mockaitis, John L. Van Hemert, Stephen R. Proulx, Jeong-Hyeon Choi & Anne M. Bronikowski
Background: The reptiles, characterized by both diversity and unique evolutionary adaptations, provide a comprehensive system for comparative studies of metabolism, physiology, and development. However, molecular resources for ectothermic reptiles are severely limited, hampering our ability to study the genetic basis for many evolutionarily important traits such as metabolic plasticity, extreme longevity, limblessness, venom, and freeze tolerance. Here we use massively parallel sequencing (454 GS-FLX Titanium) to generate a transcriptome of the western terrestrial garter snake...

Data from: Impacts of grazing by different large herbivores in grassland depend on plant species diversity

Jun Liu, Chao Feng, Deli Wang, Ling Wang, Brian J. Wilsey & Zhiwei Zhong
1. It is well documented that large herbivores have pronounced effects on plant communities in grassland ecosystems, and the extent and course of their effects can largely depend on both plant and herbivore characteristics. Previous studies highlighted the importance of plant productivity in predicting the impact of herbivores on grasslands. Yet, there has been little consideration of how different herbivores affect plant communities that, in turn, differ in plant diversity. 2. In a 2-year grazing...

Data from: An empirical review: characteristics of plant microsatellite markers that confer higher levels of genetic variation

Benjamin J. Merritt, Theresa M. Culley, Alina Avanesyan, Richard Stokes & Jessica Brzyski
During microsatellite marker development, researchers must choose from a pool of possible primer pairs to further test in their species of interest. In many cases, the goal is maximizing detectable levels of genetic variation. To guide researchers and determine which markers are associated with higher levels of genetic variation, we conducted a literature review based on 6782 genomic microsatellite markers published from 1997–2012. We examined relationships between heterozygosity (He or Ho) or allele number (A)...

Data from: Are attractive male crickets better able to pay the costs of an immune challenge?

Clint D. Kelly, Melissa S. C. Telemeco, Lyric C. Bartholomay & Melissa S.C. Telemeco
Reproduction and immunity are fitness-related traits that trade-off with each other. Parasite-mediated theories of sexual selection suggest, however, that higher-quality males should suffer smaller costs to reproduction-related traits and behaviours (e.g., sexual display) from an immune challenge because these males possess more resources with which to deal with the challenge. We used Gryllus texensis field crickets to test the prediction that attractive males should better maintain the performance of fitness-related traits (e.g., calling effort) in...

Data from: Potential rapid evolution of foot morphology in Italian plethodontid salamanders (Hydromantes strinatii) following the colonization of an artificial cave

Sebastiano Salvidio, Federico Crovetto & Dean C. Adams
How organisms respond to environmental change is a long-standing question in evolutionary biology. Species invading novel habitats provide an opportunity to examine contemporary evolution in action, and decipher the pace of evolutionary change over short time scales. Here we characterized phenotypic evolution in the Italian plethodontid salamander, Hydromantes strinatii following the recent colonization of an artificial cave by a forest floor population. When compared with a nearby and genetically related population in the natural forest...

Data from: Evaluating modularity in morphometric data: challenges with the RV coefficient and a new test measure

Dean C. Adams
Modularity describes the case where patterns of trait covariation are unevenly dispersed across traits. Specifically, trait correlations are high and concentrated within subsets of variables (modules), but the correlations between traits across modules are relatively weaker. For morphometric data sets, hypotheses of modularity are commonly evaluated using the RV coefficient, an association statistic used in a wide variety of fields. In this article, I explore the properties of the RV coefficient using simulated data sets....

Data from: Rapid molecular evolution across amniotes of the IIS/TOR network

Suzanne E. McGaugh, Anne M. Bronikowski, Chih-Horng Kuo, Dawn M. Reding, Elizabeth A. Addis, Lex E. Flagel, Fredric J. Janzen & Tonia S. Schwartz
Comparative analyses of central molecular networks uncover variation that can be targeted by biomedical research to develop insights and interventions into disease. The insulin/insulin-like signaling and target of rapamycin (IIS/TOR) molecular network regulates metabolism, growth, and aging. With the development of new molecular resources for reptiles, we show that genes in IIS/TOR are rapidly evolving within amniotes (mammals and reptiles, including birds). Additionally, we find evidence of natural selection that diversified the hormone-receptor binding relationships...

Data from: Drifting to oblivion? Rapid genetic differentiation in an endangered lizard following habitat fragmentation and drought

Amy G. Vandergast, Dustin A. Wood, Andrew R. Thompson, Mark Fisher, Cameron W. Barrows & Tyler J. Grant
Aim: The frequency and severity of habitat alterations and disturbance are predicted to increase in upcoming decades, and understanding how disturbance affects population integrity is paramount for adaptive management. Although rarely is population genetic sampling conducted at multiple time points, pre- and post-disturbance comparisons may provide one of the clearest methods to measure these impacts. We examined how genetic properties of the federally threatened Coachella Valley fringe-toed lizard (Uma inornata) responded to severe drought and...

Data from: Lack of genetic isolation by distance, similar genetic structuring but different demographic histories in a fig-pollinating wasp mutualism

Enwei Tian, John D. Nason, Linna Zheng, Hui Yu, Finn Kjellberg & Carlos A. Machado
Historical abiotic factors such as climatic oscillations and extreme climatic events as well as biotic factors have shaped the structuring of species’ genetic diversity. In obligate species-specific mutualisms, the biogeographic histories of the interacting species are tightly linked. This could be particularly true for nuclear genes in the Ficus-pollinating wasp mutualistic association as the insects disperse pollen from their natal tree. In this study we compare spatial genetic structure of plant and pollinator for the...

Data from: Sex-specific and individual preferences for hunting strategies in white sharks

Alison V. Towner, Vianey Leos-Barajas, Roland Langrock, Robert S. Schick, Malcolm J. Smale, Tami Kaschke, Oliver J.D. Jewell, Yannis P. Papastamatiou & Oliver J. D. Jewell
Fine-scale predator movements may be driven by many factors including sex, habitat, and distribution of resources. There may also be individual preferences for certain movement strategies within a population which can be hard to quantify. Within top predators, movements are also going to be directly related to the mode of hunting; for example sit-and-wait or actively searching for prey. Although there is mounting evidence that different hunting modes can cause opposing trophic cascades, there has...

Data from: Batesian mimics influence the evolution of conspicuousness in an aposematic salamander

Andrew C. Kraemer, Jeanne M. Serb & Dean C. Adams
Conspicuousness, or having high contrast relative to the surrounding background, is a common feature of unpalatable species. Several hypotheses have been proposed to explain the occurrence of conspicuousness, and while most involve the role of conspicuousness as a direct signal of unpalatability to potential predators, one hypothesis suggests that exaggerated conspicuousness may evolve in unpalatable species to reduce predator confusion with palatable species (potential Batesian mimics). This hypothesis of antagonistic coevolution between palatable and unpalatable...

Data from: Evolution of the bamboos (Bambusoideae; Poaceae): a full plastome phylogenomic analysis

William P. Wysocki, Lynn G. Clark, Eduardo Ruiz-Sanchez, Lakshmi Attigala & Melvin R. Duvall
Background: Bambusoideae (Poaceae) comprise three distinct and well-supported lineages: tropical woody bamboos (Bambuseae), temperate woody bamboos (Arundinarieae) and herbaceous bamboos (Olyreae). Phylogenetic studies using chloroplast markers have generally supported a sister relationship between Bambuseae and Olyreae. This suggests either at least two origins of the woody bamboo syndrome in this subfamily or its loss in Olyreae. Results: Here a full chloroplast genome (plastome) phylogenomic study is presented using the coding and noncoding regions of 13...

Data from: Multiple genomic signatures of selection in goats and sheep indigenous to a hot arid environment

Eui-Soo Kim, Ahmed R. Elbeltagy, Adel M. Aboul-Naga, Barbara Rischkowsky, Bryan Sayre, Joram M. Mwacharo & M. F. Rothschild
Goats and sheep are versatile domesticates that have been integrated into diverse environments and production systems. Natural and artificial selection have shaped the variation in the two species but, natural selection has played the major role amongst indigenous flocks. To investigate signals of natural selection, we analyzed genotype data generated using the caprine and ovine 50K SNP BeadChips from Barki goats and sheep that are indigenous to a hot arid environment in Egypt's Coastal Zone...

Registration Year

  • 2015
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Resource Types

  • Dataset
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Affiliations

  • Iowa State University
    13
  • University of Pretoria
    1
  • Dyer Island Conservation Trust
    1
  • University of Genoa
    1
  • University of Illinois at Springfield
    1
  • Rhodes University
    1
  • University of Minnesota
    1
  • University of Cincinnati
    1
  • Royal Netherlands Institute for Sea Research
    1
  • University of Wisconsin-Madison
    1