Data from: Genomic consequences of genetic rescue in an insular population of bighorn sheep (Ovis canadensis)

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Description:

Genetic rescue is a management intervention whereby a small population is supplemented with individuals from other populations in an attempt to reverse the effects of inbreeding and increased genetic load. One such rescue was recently documented in the population of bighorn sheep (Ovis canadensis) within the National Bison Range wildlife refuge (Montana, USA). Here we examine the locus-specific effects of rescue in this population using a newly developed genome-wide set of 195 microsatellite loci and first-generation linkage map. We found that the rate of introgression varied among loci, and that 111 loci, 57% of those examined, deviated from patterns of neutral inheritance. The most common deviation was an excess of homozygous genotypes relative to neutral expectations, indicative of directional selection. As in previous study of this rescue, individuals with more introduced alleles had higher lifetime reproductive success and longevity. In addition, we found 30 loci, spread throughout the genome, which seem to have individual effects on these life history traits. Though the potential for outbreeding depression is a major concern when translocating individuals between populations, we found no evidence of such effects in this population.

Usage Notes:

NBR genotyoes

Microsatellite genotype data for bighorn sheep (Ovis canadensis) from National Bison Range in Montana, USA. Columns A-C contain locus names, linkage group (lg), and position on the linkage group respectively. Subsequent columns are individual genotypes. For individual genotypes row 1 indicates if the individual is an NBR founder (ParentPop1), a transplanted individual (ParentPop2), or a hybrid progeny (Hybrid); row 2 is the individual ID corresponding to the modeling table. Missing data is coded as NA/NA.

NBR modeling_table

Data used for analyses of geographic ancestry and individual fitness. Column headings for columns A-G are as follows: ID = individual ID (corresponding to that in genotype data, Gender = sex of the sheep, h.index = hybrid index value as calculated from INTROGRESS analyses, Year_Birth = year of birth or introduction, Longevity = longevity as of 2010, Progeny = number of progeny that individual contributed to the pedigree, Introduced = binary indicator if that sheep was introduced to the population or not. Subsequent columns are genotypes at each locus coded as a factor with three levels (0, 1, or 2) corresponding to the number of alleles predicted to be derived from founders during the INTROGRESS analysis. Missing data is coded as NA.

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Auteur(s) :

Miller, Joshua M.

Miller, Joshua M.

University of Alberta

, Poissant, Jocelyn

Poissant, Jocelyn

University of Alberta

, Hogg, John T.

Hogg, John T.

Montana Conservation Science Institute, 5200 Upper Miller Creek Road, Missoula, MT 59803, USA

et Coltman, David W.

Coltman, David W.

University of Alberta

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Dépôt source:

Dryad

Éditeur(s):

Dryad

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Accès:

Public

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URL:

http://datadryad.org/stash/dataset/doi:10.5061/dryad.gv13nm40

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Date de publication:

2011-12-01

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Mots-clés (en):

Ovis canadensis, Reproductive success, intraspecific hybridization, et genomic clines

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Identificateur:

https://doi.org/10.5061/dryad.gv13nm40

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Citation selon les normes APA:

Data from: Genomic consequences of genetic rescue in an insular population of bighorn sheep (Ovis canadensis). (2011). [Data set]. Dryad. http://datadryad.org/stash/dataset/doi:10.5061/dryad.gv13nm40

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