An alteration in transcription patterns of mitochondrial genes in alloplasmic lines of Brassica rapa

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著者

    • Yamasaki Seiji YAMASAKI Seiji
    • Laboratory of Plant Breeding and Genetics, Department of Applied Plant Science, Graduate School of Agricultural Science, Tohoku University
    • Konno Noboru KONNO Noboru
    • Laboratory of Plant Breeding and Genetics, Department of Applied Plant Science, Graduate School of Agricultural Science, Tohoku University

抄録

The accumulation of transcripts of mitochondrial genes in young buds was examined in euplasmic and alloplasmic lines of <i>Brassica rapa</i> for the `<i>mur</i>' system of cytoplasmic male sterility (CMS). Southern blotting analysis revealed the general absence of restriction fragment length polymorphism between <i>Diplotaxis muralis</i>, the donor of cytoplasm, and each of three sterile alloplasmic lines, indicating that the rearrangement of mitochondrial DNA might not be caused by the nucleus of <i>B. rapa</i>. However, different Northern hybridization patterns were detected when <i>coxI</i> and <i>nad3</i> were used as probes. Production of the 2.5-kb transcript of <i>coxI</i> and a reduction in levels of the transcript of <i>nad3</i> in the sterile alloplasmic lines were clearly under the control of the nucleus of <i>B. rapa</i>. No such differences in patterns of transcripts were detected in the leaves. This observation suggests that some factor(s) or gene(s) in the nucleus of <i>B. rapa</i> acts in an organ-specific manner to alter the size of transcripts in the mitochondria of the donor cytoplasm without any structural changes in the mitochondrial genome. Further studies are required to clarify whether or not the unique transcripts in the young buds induce a CMS event.<br>

収録刊行物

  • Genes & genetic systems

    Genes & genetic systems 73(3), 167-172, 1998-06

    The Genetics Society of Japan

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被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10003762545
  • NII書誌ID(NCID)
    AA11077421
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • ISSN
    13417568
  • NDL 記事登録ID
    4549978
  • 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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