Genetic differentiation within sibling species of Conocephalum conicum (Marchantiales: Hepaticae) in East Asia

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  • Itouga Misao
    Department of Biological Science, Faculty of Science, Hiroshima University
  • Yamaguchi Tomio
    Department of Biological Science, Faculty of Science, Hiroshima University
  • Kondo Katsuhiko
    Laboratory of Plant Chromosomes and Gene Stock, Faculty of Science, Hiroshima University
  • Hong De-Yuan
    Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy Sciences
  • Zhou Shi-Liang
    Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy Sciences
  • Funamoto Tsuneo
    Biological Institute, Showa College of Pharmaceutical Sciences
  • Deguchi Hironori
    Department of Biological Science, Faculty of Science, Hiroshima University

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Other Title
  • 東アジアにおけるジャゴケ(ゼニゴケ目:苔類)同胞種内の遺伝的分化
  • Genetic differentiation within sibling of Conocephalum conicum (Marchantiales:Hepaticae)in East Asia

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Genetic variation at 8 loci was examined for seven natural populations of Conocephalum conicum from Japan, Taiwan and continental China. Genetic diversity within both species and populations was very high with values of Hes=0.142 and a mean of Hep=0.117, respectively. Genetic variation found between the populations was low (Gst=0.121). Two types of genetic difference was found in all populations. One type consisted of three populations; each from China, Taiwan and Japan. Another type consisted of four Japanese populations; three from the Tsushima Islands and one from Honshu. Genetic distance among the three populations of the former type was less than that among the four populations of the latter type.

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