4 Works

Data from: Development of an ultra-dense genetic map of the sunflower genome

John E. Bowers, Savithri Nambeesan, Jonathan Corbi, John M. Burke, Michael S. Barker, Loren H. Rieseberg & Steven J. Knapp
The development of ultra-dense genetic maps has the potential to facilitate detailed comparative genomic analyses and whole genome sequence assemblies. Here we describe the use of a custom Affymetrix GeneChip containing nearly 2.4 million features (25 bp sequences) targeting 86,023 unigenes from sunflower (Helianthus annuus L.) and related species to test for single-feature polymorphisms (SFPs) in a recombinant inbred line (RIL) mapping population derived from a cross between confectionery and oilseed sunflower lines (RHA280 x...

Data from: The population genomics of sunflowers and genomic determinants of protein evolution revealed by RNAseq

S├ębastien Renaut, Christopher J. Grassa, Brook T. Moyers, Nolan C. Kane, Loren H. Rieseberg, Christopher Grassa, Brook Moyers, Nolan Kane & Loren Rieseberg
Few studies have investigated the causes of evolutionary rate variation among plant nuclear genes, especially in recently diverged species still capable of hybridizing in the wild. The recent advent of Next Generation Sequencing (NGS) permits investigation of genome wide rates of protein evolution and the role of selection in generating and maintaining divergence. Here, we use individual whole-transcriptome sequencing (RNAseq) to refine our understanding of the population genomics of a wild species of sunflowers (Helianthus...

Data from: Temporal dynamics of outcrossing and host mortality rates in host-pathogen experimental coevolution

Levi T. Morran, , Ian A. Gelarden, Curtis M. Lively & Raymond C. Parrish
Cross-fertilization is predicted to facilitate the short-term response and the long-term persistence of host populations engaged in antagonistic coevolutionary interactions. Consistent with this idea, our previous work has shown that coevolving bacterial pathogens (Serratia marcescens) can drive obligately selfing hosts (Caenorhabditis elegans) to extinction, while the obligately outcrossing and partially outcrossing populations persisted. We focused the present study on the partially outcrossing (mixed mating) and obligately outcrossing hosts, and analyzed the changes in the host...

Data from: Inferring the history of interchromosomal gene transposition in Drosophila using n-Dimensional parsimony

Mira V. Han & Matthew W. Hahn
Gene transposition puts a new gene copy in a novel genomic environment. Moreover, genes moving between the autosomes and the X chromosome experience change in several evolutionary parameters. Previous studies of gene transposition have not utilized the phylogenetic framework that becomes possible with the availability of whole genomes from multiple species. Here we used parsimonious reconstruction on the genomic distribution of gene families to analyze interchromosomal gene transposition in Drosophila. We identified 782 genes that...

Registration Year

  • 2012
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Resource Types

  • Dataset
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Affiliations

  • Indiana University Bloomington
    4
  • University of British Columbia
    2
  • Duke University
    1
  • University of Georgia
    1
  • University of Arizona
    1