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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
High connectivity among argali sheep from Afghanistan and adjacent countries: Inferences from neutral and candidate gene microsatellites
Conservation Genetics, Volume 12, No. 4, Year 2011
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Description
We quantified population connectivity and genetic variation in the Marco Polo subspecies of argali mountain sheep (Ovis ammon polii) by genotyping 9 neutral and 8 candidate gene microsatellite loci in 172 individuals noninvasively sampled across five study areas in Afghanistan, China, and Tajikistan. Heterozygosity and allelic richness were generally high (mean H = 0. 67, mean A = 6. 1), but were significantly lower in the China study area (H = 0. 61, P < 0. 001; A = 4. 9, P < 0. 01). One marker in an immune system gene (TCRG4) showed an excess of rare alleles compared to neutral expectations. Another immune system gene (GLYCAM-1) showed excessive differentiation (high FST) between study areas. Estimates of genetic differentiation were similar (FST = 0. 035 vs. 0. 033) with and without the two loci deviating from neutrality, suggesting that selection is not a primary driver of overall molecular variation, and that candidate gene loci can be used for connectivity monitoring, as long as selection tests are conducted to avoid biased gene flow estimates. Adequate protection of argali and maintenance of inter-population connectivity will require monitoring and international cooperation because argali exhibit high gene flow across international borders. © 2011 Springer Science+Business Media B.V.
Authors & Co-Authors
Luikart, Gordon
United States, Missoula
University of Montana
Portugal, Porto
Universidade do Porto
Winnie, John A.
United States, Missoula
University of Montana
Beja-Pereira, A.
Portugal, Porto
Universidade do Porto
Godinho, Raquel
Portugal, Porto
Universidade do Porto
Harris, Richard B.
United States, Missoula
University of Montana
Statistics
Citations: 24
Authors: 5
Affiliations: 2
Identifiers
Doi:
10.1007/s10592-011-0195-z
ISSN:
15729737
Research Areas
Genetics And Genomics
Study Design
Cross Sectional Study