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Phylogeography of Wild Musk Shrew (Suncus Murinus) Populations in Asia Based on Blood Protein/Enzyme Variation |
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| Authors: | Megumi Kurachi Yoshi Kawamoto Yuji Tsubota Ba-Loc Chau Vu-Binh Dang Tashi Dorji Yoshio Yamamoto Maung Maung Nyunt Yoshizane Maeda Loan Chhum-Phith Takao Namikawa Takahiro Yamagata |
| Institution: | (1) Graduate School of Bioagricultural Sciences, Nagoya University, Furocho, Chikusa, Nagoya 464-8601, Japan;(2) Primate Research Institute, Kyoto University, Kanrin, Inuyama 484-8506, Japan;(3) Osaka Kawasaki Rehabilitation University, Mizuma, Kaizuka 597-0104, Japan;(4) Faculty of Agriculture, University of Cantho, Cantho, Hau Giang, Vietnam;(5) Faculty of Animal and Veterinary Sciences, Hanoi Agricultural University, Gialam, Hanoi, Vietnam;(6) RNR Research Center, Ministry of Agriculture, Jakar, Bhutan;(7) Graduate School of Biosphere Science, Hiroshima University, Kagamiyama, Higashi-Hiroshima 739-8528, Japan;(8) Livestock Breeding and Veterinary Department, Ministry of Livestock and Fisheries, Yangon, Myanmar;(9) Faculty of Agriculture, Kagoshima University, Koorimoto, Kagoshima 890-0065, Japan;(10) Faculty of Animal Science and Veterinary Science, Royal University of Agriculture, Phnom Penh, Cambodia |
| Abstract: | The musk shrew (Suncus murinus) is an insectivore species that inhabits tropical and subtropical Asia widely. To clarify the genetic relationship among wild musk shrew populations, we examined the electrophoretic variants of biparentally inherited genetic markers at 10 loci coding for eight blood proteins/enzymes in a total of 639 animals and compared the results obtained from the mitochondrial DNA data. The principal-component analysis performed using the allele frequency data revealed that the 17 populations could be divided into two major groups, a South Asian group and a Southeast Asian group that includes several island populations bound by Myanmar. The degrees of genetic divergence among populations were higher within the Southeast Asian group than within the South Asian group. This finding was incongruent with the mtDNA diversity. Analysis conducted at the individual level showed that a shrew from the central region in Myanmar that carries a South Asian type of mtDNA showed the electrophoretic variants specific to the Southeast Asian group, suggesting that this region is a contact zone between the two major groups. |
| Keywords: | Suncus murinus Blood proteins/enzymes Mitochondrial DNA Phylogeography Asia |
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