Efficacy of a special screened greenhouse covered by duplex fine mesh in reducing maize outcrossing

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Gene flow via pollen dispersal leading to the escape of transgenes is a potential concern associated with the introduction of transgenic plants. Therefore, it is necessary to clarify the relationship between pollen dispersal and outcrossing rate for strict biosafety management during risk assessment. Maize (<i>Zea mays</i>) is one of the crops most at risk for gene leakage via pollen flow into the environment. Here, we report the results of a cross-pollination field investigation using maize varieties showing a xenia effect with tricolor kernels, which allowed us to designate a pollen donor with natural outcrossing and one with reduced outcrossing (via a screened greenhouse) in the same experimental field at the same time. Although a previous study showed that a special screened greenhouse covered by 1-mm single fine mesh may be effective in reducing outcrossing in maize, we used 1-mm duplex fine mesh to reduce further the possibility of outcrossing. We report how a special screened greenhouse covered by 1-mm duplex fine mesh reduced pollen dispersal, and affected the outcrossing rate of non-genetically modified (GM) yellow maize in the greenhouse and white maize outside the greenhouse, compared to natural outcrossing.

収録刊行物

  • Plant biotechnology  

    Plant biotechnology 23(4), 387-394, 2006-09-01 

    Japanese Society for Plant Cell and Molecular Biology

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各種コード

  • NII論文ID(NAID)
    10021909124
  • NII書誌ID(NCID)
    AA11250821
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13424580
  • NDL 記事登録ID
    8041111
  • NDL 雑誌分類
    ZR3(科学技術--生物学--植物)
  • NDL 請求記号
    Z54-J126
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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