title: Population genetic structure of endangered Mongolian racerunner (Eremias argus) from the Korean Peninsula.
abstract: The Mongolian racerunner (Eremias argus) is a small lacertid lizard species, and its distribution range encompasses the Korean Peninsula, Mongolia, China and Russia. Eremias argus is widespread, but populations on the Korean Peninsula are small and declining, provoking concerns that genetic diversity is being lost. This species is currently listed under the Protection of Wild Fauna and Flora Act in South Korea. In this study, nine novel microsatellites for E. argus were developed with a biotin-enrichment method and used to understand its population genetic structure and delineate conservation units on the Korean Peninsula. Overall, low intrapopulation genetic diversity was observed (mean number of alleles per locus = 2.463; mean H E = 0.398) from 10 populations investigated (n = 110). Two populations (among five with n≥ 10) showed an excess of heterozygosity expected under HWE relative to that expected at mutation-drift equilibrium, indicating severe reduction in population sizes. With only a few exceptions, the overall genetic differentiation among populations was substantial with the high levels of pairwise-F ST (0.006-0.746) and -R ST (0.034-0.940) values. The results of Bayesian STRUCTURE analysis showed that E. argus populations on the Korean Peninsula were most likely partitioned into three genetic clusters. Taken all together, such low levels of gene flow and strong genetic structuring have critical implications for the conservation of this endangered species and its management.
authors.affiliation: Conservation Genome Resource Bank for Korean Wildlife, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, 151-742, South Korea.
authors.forename: Han-Chan
authors.initials: HC
authors.lastname: Park
authors.forename: Ho Young
authors.initials: HY
authors.lastname: Suk
authors.forename: Eu-Jin
authors.initials: EJ
authors.lastname: Jeong
authors.forename: Dae-Sik
authors.initials: DS
authors.lastname: Park
authors.forename: Hang
authors.initials: H
authors.lastname: Lee
authors.forename: Mi-Sook
authors.initials: MS
authors.lastname: Min
mesh_terms: D063147:Animal Distribution; D000818:Animals; D001499:Bayes Theorem; D003247:Conservation of Natural Resources / Q000379:methods*; D056727:Endangered Species; D051456:Gene Flow; D005787:Gene Frequency; D006580:Genetic Carrier Screening; D014644:Genetic Variation; D005828:Genetics, Population; D008116:Lizards / Q000235:genetics*; D018895:Microsatellite Repeats / Q000235:genetics; D056910:Republic of Korea
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