Origin and the transmission of some types of family 1 wheat retrotransposons in the two related genera Triticum and Aegilops

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Restriction fragment length polymorphism (RFLP) in the reverse transcriptase domain of family 1 retrotransposons was investigated in the genera <i>Triticum</i> and <i>Aegilops</i>. On the basis of the <i>Taq</i>I restriction site distribution within or near the reverse transcriptase domain, we defined the four types (I-IV) of the family 1 wheat retrotransposons. The type I elements are assumed to have been present much before the differentiation of the genera because they distribute in rye and barley. On the other hand, the type II-IV elements appeared to have occurred during speciation of <i>Triticum</i> and <i>Aegilops</i> species and were transmitted vertically from species of lower ploidy to those of higher ploidy, because they distribute in most of the polyploid species whereas they are detectable only in six of 15 diploid species. These findings suggest a possibility that the genomes carrying the new family 1 retrotransposons have been preferred in successful establishment of polyploid species.<br>

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  • Genes & genetic systems

    Genes & genetic systems 72(6), 345-351, 1997-12-01

    The Genetics Society of Japan

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各種コード

  • NII論文ID(NAID)
    10003761843
  • 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
    4474098
  • 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  NDL  J-STAGE 
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