New Fagopyrum species revealed by morphological and molecular analyses

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Nine <i>Fagopyrum</i> accessions which are suspected to be new species were examined for morphology and crossability with their closely related species. Three accessions similar to <i>F. leptopodum</i> are considered to be members of <i>F. leptopodum</i> because of no difference in 14 qualitative characters examined and fertility of hybrids between them. One accession similar to <i>F. gracilipes</i> is included in <i>F. gracilipes</i> by the same reason. Two other <i>F. gracilipes</i>-like accessions are considered to be a new species based on morphological differences and sterility of hybrids. Three accessions related to <i>F. pleioramosum</i> and <i>F. callianthum</i> had characters different from both species and could not be included into either species. Phylogenetic relationships among the suspected accessions and related species were examined based on isozyme variability and nucleotide sequences of the internal transcribed spacer (ITS) region of nuclear ribosomal DNA (nrDNA). The accessions considered to be new species were distantly related to the group of their related species in the molecular phylogenetic trees. In contrast, those accessions considered to be <i>F. leptopodum</i> and the accession considered to be <i>F. gracilipes</i> based on morphological characters and crossability were included in the respective group of their related species. Thus these molecular phylogenetic trees support the classification based on morphology and crossability.<br>

収録刊行物

  • Genes & genetic systems

    Genes & genetic systems 73(2), 85-94, 1998-04

    The Genetics Society of Japan

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各種コード

  • NII論文ID(NAID)
    10003762214
  • 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
    4514153
  • 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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