Spatially heterogeneous distribution of mtDNA haplotypes in a sika deer (Cervus nippon) population on the Boso Peninsula, central Japan

  • Yoshio Masanobu
    Laboratory of Biodiversity Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • Asada Masahiko
    Natural History Museum and Institute
  • Ochiai Keiji
    Natural History Museum and Institute
  • Goka Koichi
    Research Centre for Environmental Risk, National Institute for Environmental Studies
  • Murase Kaori
    Laboratory of Biometry and Bioinformatics, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • Miyashita Tadashi
    Laboratory of Biodiversity Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • Tatsuta Haruki
    Research Centre for Environmental Risk, National Institute for Environmental Studies

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タイトル別名
  • Spatially heterogeneous distribution of mtDNA haplotypes in a sika deer (<i>Cervus nippon</i>) population on the Boso Peninsula, central Japan

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説明

We used variation in the mitochondrial DNA (mtDNA) control region (D-loop) to examine the genetic structure of the sika deer (Cervus nippon) population on the Boso Peninsula, central Japan. A total of four haplotypes was found. In order to examine whether or not artificial barriers such as roads, dams, and golf courses affect the spatial heterogeneity of mtDNA haplotypes, we implemented two exclusive spatial analyses (SAMOVA and network analysis based on Monmonier’s algorithm) for searching genetic discontinuities between artificial barriers. Prior to the analyses, the whole distribution area was divided into meaningful eight blocks. Analysis of molecular variance (AMOVA) detected significant spatial heterogeneity in the constitution of the haplotypes among the blocks. The subsequent spatial analyses detected some significant spatial discontinuities on borders of the blocks. In particular, the largest discontinuity was observed in the area including motorway Line 81, but the traffic density of Line 81 is generally not very heavy compared to other major roads. These findings suggest that roads could be one of major barriers to hamper migration of sika deer to some extent, but other potential factors such as the location of food resources and/or the history of bottleneck event are also likely to more or less contribute to configure the present patterns of haplotype distribution.<br>

収録刊行物

  • Mammal Study

    Mammal Study 33 (2), 59-69, 2008

    日本哺乳類学会

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