Temporal genetic structure in Camellia Japonica(Theaceae)

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The temporal genetic structure of four pairs of juvenile (2-3 years old) and adult (ca. 50-100 years old) populations of <i>Camellia japonica</i> was examined using allozyme markers. No significant differences in genetic variability between two groups were found in the populations examined. About 52 and 37% of positive fixation indices calculated in the four juvenile and adult populations were significantly larger than zero with mean <i>F</i><sub>IS</sub> values of 0.254 and 0.194, respectively. This indicates a considerable deficiency of heterozygotes in the juvenile and adult populations as a possible result of family structuring. Values of <i>F</i><sub>IS</sub>, <i>F</i><sub>IT</sub>, estimates of migration rate per generation (<i>Nm</i>), and <i>F</i><sub>ST</sub> were not significantly different between juvenile and adult populations, though slightly higher mean values of <i>F</i><sub>IS</sub>, <i>F</i><sub>IT</sub> and <i>Nm</i>, and a lower <i>F</i><sub>ST</sub> were found in the juvenile populations in comparison to the adult populations. However, previous studies on other woody plants showed that the seed, seedling, and juvenile stages generally have significantly higher levels of inbreeding than found in adults. The high evolutionary potential maintained in <i>C. japonica</i> may in part result in homogeneous levels of genetic diversity and genetic structure in time.<br>

収録刊行物

  • Genes & genetic systems

    Genes & genetic systems 71(1), 9-13, 1996-02

    The Genetics Society of Japan

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各種コード

  • NII論文ID(NAID)
    10003759462
  • NII書誌ID(NCID)
    AA11077421
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13417568
  • NDL 記事登録ID
    4163700
  • NDL 雑誌分類
    ZR1(科学技術--生物学)
  • NDL 請求記号
    Z53-W539
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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