9 Works

Data from: Contemporary evolution of sea urchin gamete-recognition proteins: experimental evidence of density-dependent gamete performance predicts shifts in allele frequencies over time

Don R. Levitan
Species whose reproductive strategies evolved at one density regime might be poorly adapted to other regimes. Field and laboratory experiments on the sea urchin Strongylocentrotus franciscanus examined the influences of the two most common sperm bindin alleles, which differ at two amino acid sites, on fertilization success. In the field experiment, the Arginine/Glycine (RG) genotype performed best at low densities and the Glycine/Arginine (GR) genotype at high densities. In the lab experiment, the RG genotype...

Data from: Offspring fitness varies with parental extra-pair status in song sparrows, Melospiza melodia

Rebecca J. Sardell, Peter Arcese, Jane M. Reid, P. Arcese, R. J. Sardell & J. M. Reid
Numerous studies have tested for indirect selection on female extra-pair reproduction (EPR) by quantifying whether extra-pair young (EPY) are fitter than their within-pair young (WPY) maternal half-siblings. In contrast, the hypothesis that offspring of EPY and WPY (rather than the EPY and WPY themselves) differ in fitness has not been tested, even though inter-generational effects of parental extra-pair status on offspring fitness could alter the magnitude and direction of indirect selection on EPR. We tested...

Data from: Phylogenetic conservatism in plant phenology

T. Jonathan Davies, Elizabeth M. Wolkovich, Nathan J. B. Kraft, Nicolas Salamin, Jenica M. Allen, Toby R. Ault, Julio L. Betancourt, Kjell Bolmgren, Elsa E. Cleland, Benjamin I. Cook, Theresa M. Crimmins, Susan J. Mazer, Gregory J. McCabe, Stephanie Pau, Jim Regetz, Mark D. Schwartz & Steven E. Travers
Phenological events – defined points in the life cycle of a plant or animal – have been regarded as highly plastic traits, reflecting flexible responses to various environmental cues. The ability of a species to track, via shifts in phenological events, the abiotic environment through time might dictate its vulnerability to future climate change. Understanding the predictors and drivers of phenological change is therefore critical. Here, we evaluated evidence for phylogenetic conservatism – the tendency...

Data from: Correlated evolution of mating system and floral display traits in flowering plants and its implications for the distribution of mating system variation

Carol Goodwillie, Risa D. Sargent, Susan Kalisz, Richard H. Ree, David A. Moeller, Mario Vallejo-Marin, Christopher G. Eckert, Alice A. Winn, Elizabeth Elle, Monica A. Geber & Mark O. Johnston
Reduced allocation to structures for pollinator attraction is predicted in selfing species. We explored the association between outcrossing and floral display in a broad sample of angiosperms. We used the demonstrated relationship to test for bias against selfing species in the outcrossing rate distribution, the shape of which has relevance for the stability of mixed mating. Relationships between outcrossing rate, flower size, flower number and floral display, measured as the product of flower size and...

Data from: Genomic basis of life history evolution in Drosophila melanogaster

Silvia C. Remolina, Peter L. Chang, Jeff Leips, Sergey V. Nuzhdin & Kimberly A. Hughes
Natural diversity in aging and other life history patterns is a hallmark of organismal variation. Related species, populations, and individuals within populations show genetically based variation in life span and other aspects of age-related performance. Population differences are especially informative because these differences can be large relative to within-population variation and because they occur in organisms with otherwise similar genomes. We used experimental evolution to produce populations divergent for life span and late-age fertility and...

Data from: Life history evolution in guppies VIII: the demographics of density regulation in guppies (Poecilia reticulata)

David N. Reznick, Ronald D. Bassar, Joseph Travis & F. Helen Rodd
In prior research, we found the way guppy life histories evolve in response to living in environments with a high or low risk of predation is consistent with life history theory that assumes no density-dependence. We later found that guppies from high predation environments experience higher mortality rates than those from low predation environments, but the increased risk was evenly distributed across all age/size classes. Life history theory that assumes density-independent population growth predicts that...

Data from: Anchored hybrid enrichment for massively high-throughput phylogenomics

Alan R. Lemmon, Sandra Emme, Emily Moriarty Lemmon & Sandra A. Emme
The field of phylogenetics is on the cusp of a major revolution, enabled by new methods of data collection that leverage both genomic resources and recent advances in DNA sequencing. Previous phylogenetic work has required labor-intensive marker development coupled with single-locus PCR and DNA sequencing on a clade-by-clade and marker-by-marker basis. Here, we present a new, cost-efficient, and rapid approach to obtaining data from hundreds of genes for potentially hundreds of individuals for deep and...

Data from: Properties of spontaneous mutational variance and covariance for wing size and shape in Drosophila melanogaster

David Houle & Janna Fierst
We estimated mutational variance-covariance matrices, M, for wing shape and size in two genotypes of Drosophila melanogaster after 192 generations of mutation accumulation. We characterized 21 potentially independent aspects of wing shape and size using geometric morphometrics, and analyzed the data using a likelihood-based factor- analytic approach. We implement a previously unused analysis that describes those directions with the greatest difference in evolvability between pairs of matrices. There are significant mutational effects on 19 of...

Data from: High-throughput identification of informative nuclear loci for shallow-scale phylogenetics and phylogeography

Alan R. Lemmon & Emily Moriarty Lemmon
One of the major challenges for researchers studying phylogeography and shallow-scale phylogenetics is the identification of highly-variable and informative nuclear loci for the question of interest. Previous approaches to marker generation have generally required extensive testing of loci of unknown utility from other systems or development of markers from the nearest model organism with genomic resources. Here, we present a fast and economical approach to generating thousands of variable, single-copy nuclear loci for any system...

Registration Year

  • 2012
    9

Resource Types

  • Dataset
    9

Affiliations

  • Florida State University
    9
  • University of British Columbia
    2
  • Swiss Institute of Bioinformatics
    1
  • Field Museum of Natural History
    1
  • Department of Plant Biology
    1
  • Lund University
    1
  • University of Aberdeen
    1
  • University of California, San Diego
    1
  • University of Lausanne
    1
  • University of Pittsburgh
    1