title: Phylogeography of wild musk shrew (Suncus murinus) populations in Asia based on blood protein/enzyme variation.
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.
authors.affiliation: Graduate School of Bioagricultural Sciences, Nagoya University, Furocho, Chikusa, Nagoya 464-8601, Japan.
authors.forename: Megumi
authors.initials: M
authors.lastname: Kurachi
authors.forename: Yoshi
authors.initials: Y
authors.lastname: Kawamoto
authors.forename: Yuji
authors.initials: Y
authors.lastname: Tsubota
authors.forename: Ba-Loc
authors.initials: BL
authors.lastname: Chau
authors.forename: Vu-Binh
authors.initials: VB
authors.lastname: Dang
authors.forename: Tashi
authors.initials: T
authors.lastname: Dorji
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Yamamoto
authors.forename: Maung Maung
authors.initials: MM
authors.lastname: Nyunt
authors.forename: Yoshizane
authors.initials: Y
authors.lastname: Maeda
authors.forename: Loan
authors.initials: L
authors.lastname: Chhum-Phith
authors.forename: Takao
authors.initials: T
authors.lastname: Namikawa
authors.forename: Takahiro
authors.initials: T
authors.lastname: Yamagata
mesh_terms: D000483:Alleles; D000818:Animals; D001208:Asia; D001797:Blood Protein Electrophoresis; D001798:Blood Proteins / Q000235:genetics*; D004272:DNA, Mitochondrial / Q000235:genetics*; D005787:Gene Frequency; D005828:Genetics, Population; D010802:Phylogeny; D011110:Polymorphism, Genetic; D025341:Principal Component Analysis; D012788:Shrews / Q000097:blood / Q000145:classification / Q000235:genetics*
chemical_list: D001798:Blood Proteins; D004272:DNA, Mitochondrial