Genetic diversity in the four east Palearctic ground squirrel species of the genus Spermophilus—S. undulatus, S. parryi (subgenus Urocitellus), S. dauricus, and S. relictus (subgenus Citellus)—was investigated using RAPD PCR with ten random primers. Siberian chipmunk, Tamias sibiricus, was used as an out-group. Molecular markers for different taxonomic ranks were identified, including those for the genera Spermophilus and Tamias, subgenera Urocitellus and Citellus, as well as for each of the four species, S.undulatus, S. parryi, S. dauricus, and S. relictus. For the ground squirrel species and subgenera, genetic differentiation indices (H t, H s, D st, G st,Nm, and D) were calculated. In addition, for these groups the NJ phylogenetic reconstructions and UPGMA dendrograms of genetic similarity of the individuals and combined populations were constructed. Comparative molecular genetic analysis revealed a high genetic differentiation between S. undulatus, S. dauricus, S. relictus, and S. parryi (G st= 0.58 to 0.82; D= 0.53 to 1.06), along with a low level of genetic differentiation of the subgenera Citellus and Urocitellus (G st = 0.33; D= 0.27), distinguished in accordance with the existing taxonomic systems of the genus Spermophilus
Russian Journal of Genetics – Springer Journals
Published: Aug 22, 2008
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