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首页> 外文期刊>Genetic Resources and Crop Evolution >New sources of compact spike morphology determined by the genes on chromosome 5A in hexaploid wheat
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New sources of compact spike morphology determined by the genes on chromosome 5A in hexaploid wheat

机译：由六倍体小麦的5A染色体上的基因确定的紧密穗状形态的新来源

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摘要

Little is known about the relationship between compact spike loci in hexaploid wheat species. We studied two new compact spike mutants of common wheat Triticum aestivum L. (2n = 6x = 42, genome formula BBAADD). The new compact spike genes, C 739 of MCK 739 and Cp of near-isogenic line Mironovskaya 808 (Vrn1), were mapped using aneuploid stocks and microsatellite markers. The C 739 and Cp loci were distally linked with the microsatellite marker Xbarc319 in the F2 populations of MCK 739 × ‘Novosibirskaya 67’ and Cp-Mironovskaya 808 (Vrn1) × ‘Saratovskaya 29’. It was evident that the loci affecting compact spikes in T. aestivum mutants were located on chromosome 5AL distal from Q locus. These loci also affected to semi-dwarfism. We named this locus Cp1 (C ompact p lant 1) for all accessions. Cp1 was allelic to C 17648 gene located on the chromosome 5AL of tetraploid wheat [Triticum durum Desf. (2n = 4x = 28, genome formula BBAA)]. These dominant genes on chromosome 5AL will be utilized as new gene resources of compact spike morphology in hexaploid wheat. Relationship between loci Q and Cp1 was also discussed.
机译：关于六倍体小麦品种中紧密穗状位点之间的关系知之甚少。我们研究了普通小麦普通小麦的两个新的紧凑型穗状突变体（2n = 6x = 42，基因组公式BBAADD）。使用非整倍体原种和微卫星标记对新的紧密穗状基因MCK 739的C 739 和近等基因系Mironovskaya 808（Vrn1）的Cp进行了定位。在MCK 739×'Novosibirskaya 67'和Cp-Mironovskaya 808（Vrn1）×'Saratovskaya 29'的F2种群中，C 739 和Cp基因座与微卫星标记Xbarc319远端连接。显然，影响普通小麦突变体紧凑穗的基因座位于Q位点远端的5AL染色体上。这些场所也影响了半侏儒症。我们为所有种质将此基因座命名为Cp1（对象1）。 Cp1与位于四倍体小麦[Triticum durum Desf。]的5AL染色体上的C 17648 基因等位基因。 （2n = 4x = 28，基因组公式BBAA）]。这些5AL染色体上的显性基因将被用作六倍体小麦的紧凑穗状形态的新基因资源。还讨论了基因座Q和Cp1之间的关系。

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  • 来源
    《Genetic Resources and Crop Evolution》 |2012年第6期|p.1115-1124|共10页
  • 作者

    K. Kosuge; N. Watanabe; V. M. Melnik; L. I. Laikova; N. P. Goncharov;

  • 作者单位

    College of Agriculture, Ibaraki University, 3-21-1 Chuo, Ami, Inashiki, Ibaraki, 300-0393, Japan;

    College of Agriculture, Ibaraki University, 3-21-1 Chuo, Ami, Inashiki, Ibaraki, 300-0393, Japan;

    Altai Research Institute of Agriculture, Siberian Branch of Russian Academy of Agricultural Sciences, Barnaul, Russia;

    Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russia;

    Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russia;

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  • 正文语种 eng
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  • 关键词

    Aneuploid; Compact spike; Induced mutations; Microsatellite map; Triticum aestivum; Triticum durum;

    机译：非整倍体;紧密穗状;诱导突变;微卫星图;普通小麦;硬粒小麦;

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