Spatial genetic structure in populations of Cymbidium goeringii (Orchidaceae)

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The fine-scale population genetic structure of <i>Cymbidium goeringii</i> (Orchidaceae), a small herbaceous perennial, was analyzed using spatial autocorrelation statistics. All visible individuals (138 and 110, respectively) within 20 × 40 m areas of each of two populations were sampled and their locations were mapped. Individual plants were genotyped for 14 allozyme loci, and Moran's spatial autocorrelation statistics were calculated for a large numbers of alleles. Values of Moran's <i>I</i>-statistics were statistically significant in 35 (19.4%) to 36 (16.4%) of 180 and 220 cases respectively for the two populations, and the overall correlograms were significant for 11 (61.1%) to six (27.3%) of 18 and 22 alleles, respectively.<br> The results also indicate that genetic similarity was shared among individuals within up to a scale of 14 m distance, and this is partly due to a combination of limited pollen dispersal and long distance seed dispersal by wind. One important implication is that, from the viewpoint of conservation genetics, sampling within populations should be conducted at 14-16 m intervals in order to optimize the genetic diversity in collections from population.<br>

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  • Genes & genetic systems

    Genes & genetic systems 73(5), 281-285, 1998-10

    The Genetics Society of Japan

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各種コード

  • NII論文ID(NAID)
    10003763067
  • 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
    4663202
  • 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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