13 Works

Data from: A genomic approach for distinguishing between recent and ancient admixture as applied to cattle

Emily Jane McTavish & David M. Hillis
Genomic data facilitate opportunities to track complex population histories of divergence and gene flow. We developed a metric, scaled block size (SBS), that uses the unrecombined block size of introgressed regions of chromosomes to differentiate between recent and ancient admixture, and applied it to reconstructing admixture in cattle. Cattle are descendants of two independently domesticated lineages, taurine and indicine, that diverged 200,000 or more years ago. Several breeds have hybrid ancestry between these divergent lineages....

Data from: Conservation genetics of the Philippine tarsier: cryptic genetic variation restructures conservation priorities for an island archipelago primate

Rafe M. Brown, Jennifer A. Weghorst, Karen V. Olson, Mariano R. M. Duya, Anthony J. Barley, Melizar V. Duya, Myron Shekelle, Irene Neri-Arboleda, Jacob A. Esselstyn, Nathaniel J. Dominy, Perry S. Ong, Gillian L. Moritz, Adrian Luczon, Mae Lowe L. Diesmos, Arvin C. Diesmos & Cameron D. Siler
Establishment of conservation priorities for primates is a particular concern in the island archipelagos of Southeast Asia, where rates of habitat destruction are among the highest in the world. Conservation programs require knowledge of taxonomic diversity to ensure success. The Philippine tarsier is a flagship species that promotes environmental awareness and a thriving ecotourism economy in the Philippines. However, assessment of its conservation status has been impeded by taxonomic uncertainty, a paucity of field studies,...

Data from: Speciation in Western Scrub-Jays, Haldane’s rule, and genetic clines in secondary contact

Fiona C. Gowen, James M. Maley, Carla Cicero, A. Townsend Peterson, Brant C. Faircloth, T. Caleb Warr & John E. McCormack
Background: Haldane’s Rule, the tendency for the heterogametic sex to show reduced fertility in hybrid crosses, can obscure the signal of gene flow in mtDNA between species where females are heterogametic. Therefore, it is important when studying speciation and species limits in female-heterogametic species like birds to assess the signature of gene flow in the nuclear genome as well. We studied introgression of microsatellites and mtDNA across a secondary contact zone between coastal and interior...

Data from: Patterns of host plant utilization and diversification in the brush-footed butterflies

Christopher A. Hamm & James A. Fordyce
Herbivorous insects represent one of the most successful animal radiations known. They occupy a wide range of niches, feed on a great variety of plants, and are species rich; yet the factors that influence their diversification are poorly understood. Host breadth is often cited as a major factor influencing diversification, and, according to the Oscillation Hypothesis, shifts from generalist to specialist feeding states increase the diversification rate for a clade. We explored the relationship between...

Data from: Range-wide ecological niche comparisons of parasite, hosts and dispersers in a vector-borne plant parasite system

Andrés Lira-Noriega & A. Townsend Peterson
Aim: To test whether the distribution of the mistletoe Phoradendron californicum is mediated by host distributions (host niche hypothesis, HNH), or by factors such as the mistletoe’s autecology (parasite niche hypothesis, PNH) or that of its vectors (vector niche hypothesis, VNH). Our null hypothesis is that the ecological niche of the mistletoe will not be distinct from that of its hosts or vectors; alternatively, mistletoe infections might appear in hosts only in regions where host...

Data from: Fine-mapping nicotine resistance loci in Drosophila using a multiparent advanced generation inter-cross population

Tara N. Marriage, Elizabeth G. King, Anthony D. Long & Stuart J. Macdonald
Animals in nature are frequently challenged by toxic compounds, from those that occur naturally in plants as a defense against herbivory, to pesticides used to protect crops. On exposure to such xenobiotic substances, animals mount a transcriptional response, generating detoxification enzymes and transporters that metabolize and remove the toxin. Genetic variation in this response can lead to variation in the susceptibility of different genotypes to the toxic effects of a given xenobiotic. Here we use...

Data from: Fitness of crop-wild hybrid sunflowers under competitive conditions: implications for crop-to-wild introgression

Kristin L. Mercer, D. Jason Emry, Allison A. Snow, Matthew A. Kost, Brian A. Pace & Helen M. Alexander
Understanding the likelihood and extent of introgression of novel alleles in hybrid zones requires comparison of lifetime fitness of parents and hybrid progeny. However, fitness differences among cross types can vary depending on biotic conditions, thereby influencing introgression patterns. Based on past work, we predicted that increased competition would enhance introgression between cultivated and wild sunflower (Helianthus annuus) by reducing fitness advantages of wild plants. To test this prediction, we established a factorial field experiment...

Data from: Multilocus phylogeny and a new classification for Southeast Asian and Melanesian forest frogs (family Ceratobatrachidae)

Rafe M. Brown, Cameron D. Siler, Stephen J. Richards, Arvin C. Diesmos & David C. Cannatella
We present a near comprehensive, densely sampled, multilocus phylogenetic estimate of species relationships within the anuran family Ceratobatrachidae, a morphologically and ecologically diverse group of frogs from the island archipelagos of Southeast Asia and the South-West Pacific. Ceratobatrachid frogs consist of three clades: a small clade of enigmatic, primarily high-elevation, semi-aquatic Sundaland species currently assigned to Ingerana (for which we erect a new genus), which is the sister taxon of two large, monophyletic radiations, each...

Data from: Interglacial microrefugia and diversification of a cactus species complex: phylogeography and palaeodistributional reconstructions for Pilosocereus aurisetus and allies

Isabel A. S. Bonatelli, Manolo F. Perez, A. Townsend Peterson, Nigel P. Taylor, Daniela C. Zappi, Marlon C. Machado, Ingrid Koch, Adriana H. C. Pires & Evandro M. Moraes
The role of Pleistocene climate changes in promoting evolutionary diversification in global biota is well documented, but the great majority of data regarding this subject come from North America and Europe, which were greatly affected by glaciation. The effects of Pleistocene changes on cold- and/or dry-adapted species in tropical areas where glaciers were not present remain sparsely investigated. Many such species are restricted to small areas surrounded by unfavourable habitats, which may represent potential interglacial...

Data from: The generification of the fossil record

Jonathan R. Hendricks, Erin E. Saupe, Corinne E. Myers, Elizabeth J. Hermsen & Warren D. Allmon
Many modern paleobiological analyses are conducted at the generic level, a practice predicated on the validity of genera as meaningful proxies for species. Uncritical application of genera in such analyses, however, has led, perhaps inadvertently, to the unjustified reification of genera in an evolutionary context. While the utility of genera as proxies for species in evolutionary studies should be evaluated as an empirical issue, in practice it is increasingly assumed (rather than demonstrated) that genera...

Data from: Natural selection and the genetic basis of osmoregulation in Heteromyid rodents as revealed by RNA-seq

Nicholas J. Marra, Andrea Romero & J. Andrew DeWoody
One adaptation of ecological and evolutionary interest is the extraordinary ability of desert rodents to retain water during waste production. Much is known regarding the unique kidney physiology of kangaroo rats (Dipodomys spp.) and their ability to retain water during waste production, yet the genetic basis of these physiological adaptations is relatively unknown. Herein, we utilized RNA-seq data to conduct a comparative study to identify osmoregulatory genes expressed in Heteromyid rodents. We sequenced kidney tissue...

Data from: Seed fates in crop-wild hybrid sunflowers: crop allele and maternal effects

Brian A. Pace, Helen M. Alexander, Jason D. Emry & Kristin L. Mercer
Domestication has resulted in selection upon seed traits found in wild populations, yet crop-wild hybrids retain some aspects of both parental phenotypes. Seed fates of germination, dormancy, and mortality can influence the success of crop allele introgression in crop-wild hybrid zones, especially if crop alleles or crop-imparted seed coverings result in out-of-season germination. We performed a seed burial experiment using crop, wild, and diverse hybrid sunflower (Helianthus annuus) cross types to test how a cross...

Data from: Macroevolutionary consequences of profound climate change on niche evolution in marine mollusks over the past three million years

Erin E. Saupe, Jonathan R. Hendricks, Roger W. Portell, Harry J. Dowsett, Alan Haywood, Stephen J. Hunter & Bruce S. Lieberman
In order to predict the fate of biodiversity in a rapidly changing world, we must first understand how species adapt to new environmental conditions. The long-term evolutionary dynamics of species' physiological tolerances to differing climatic regimes remain obscure. Here, we unite palaeontological and neontological data to analyse whether species' environmental tolerances remain stable across 3 Myr of profound climatic changes using 10 phylogenetically, ecologically and developmentally diverse mollusc species from the Atlantic and Gulf Coastal...

Registration Year

  • 2014
    13

Resource Types

  • Dataset
    13

Affiliations

  • University of Kansas
    13
  • National Museum
    2
  • The University of Texas at Austin
    2
  • The Ohio State University
    2
  • University of Oklahoma
    2
  • Washburn University
    2
  • University of Santo Tomas
    1
  • Federal University of São Carlos
    1
  • Royal Botanic Gardens
    1
  • Ohio University
    1