RELP分析により明らかになったアジアにおけるイネ在来品種の核ゲノムの分化 Nuclear genome differentiation in Asian cultivated rice as revealed by RFLP analysis

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RFLP analysis was carried out to clarify the nuclear genome differentiation in Asian rice varieties of <i>Oryza sativa</i>. Based on the restriction fragment patterns with two endonucleases, <i>Eco</i>RI and <i>Hind</i>III, using 12 single-copy rice DNA probes, 93 types of nuclear genome were found among 112 local varieties from 17 Asian countries. In a dendrogram showing genetic relationships among nuclear genome types, they were mainly divided into eight groups, A, B1, B2, C1, C2, D1, D2 and E. These results were compared with previous isozyme analysis and RFLP analysis on chloroplast genome using the same varieties. Classification on isozyme analysis matches well with that on nuclear genome, indicating synchronous differentiation of isozyme constitutions and nuclear genomes in Asian varieties. Considering the correspondence between them, nuclear genomes were grouped into Indica (A, B1 and B2), intermediate (C1, C2 and D1) and Japonica (D2 and E) types. From the comparison of chloroplast with nucleus for genome differentiation, two major chloroplast genomes (types 1 and 3) were found in the varieties with several nuclear genome types. However, Japonica group with D2 and E nuclear genomes has only type 1 chloroplast genome, whereas Indica and intermediate groups contain both two major chloroplast genomes. Especially, type 3 chloroplast genome which was not found in Japonica group is dominant type in Indica varieties. The results indicate the differentiation of nuclear genome has partially synchronized with that of chloroplast genome.<br>

収録刊行物

  • The Japanese journal of genetics  

    The Japanese journal of genetics 70(5), 643-652, 1995-10-25 

    Genetics Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002508071
  • NII書誌ID(NCID)
    AA00690924
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    0021504X
  • NDL 記事登録ID
    3642716
  • NDL 刊行物分類
    RA27(発生・細胞・遺伝--植物)
  • NDL 雑誌分類
    ZR1(科学技術--生物学)
  • NDL 請求記号
    Z18-23
  • データ提供元
    CJP書誌  NDL  IR  J-STAGE 
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