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首页> 外文期刊>Genetic Resources and Crop Evolution >Microsatellite mapping of genes for semi-dwarfism and branched spike in Triticum durum Desf. var. ramosoobscurum Jakubz. “Vetvistokoloskaya”
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Microsatellite mapping of genes for semi-dwarfism and branched spike in Triticum durum Desf. var. ramosoobscurum Jakubz. “Vetvistokoloskaya”

机译：小麦硬粒小麦半矮化和分支穗基因的微卫星作图。变种ramosoobscurum Jakubz。 “ Vetvistokoloskaya”

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摘要

A combination of increased harvest index and increased seed number per plant may improve wheat yield. We found an accession Triticum durum Desf. var. ramosoobscurum Jakubz. “Vetvistokoloskaya” R-107, whose plant height was short and spike was branched. To characterize R-107, we mapped the genes for semi-dwarfism and branched spike. Semi-dwarf gene Rht_R107 (Reduced height R107) from R-107 was allelic to Rht11 and Rht-B1b on chromosome 4BS. Rht_R107, as well as Rht11, was recessive and insensitive to gibberellic acid. Microsatellite mapping indicated that Rht_R107 was linked to Xwmc48 (1.2 cM) on chromosome 4BS, and Rht11 was also linked to Xgwm495 marker (19.4 cM) on chromosome 4BS. The locus responsible for branched spike in R-107 was mapped by genotyping three F2 populations using microsatellite markers. Phenotypic analysis revealed that branched spike was under control of a recessive allele at a single locus. The bh (branched head) locus was located on chromosome 2AS and the marker Xgwm425 flanked the bh gene proximally.
机译：增加收获指数和增加单株种子数的组合可以提高小麦产量。我们发现了小麦硬粒小麦Desf。变种ramosoobscurum Jakubz。 “ Vetvistokoloskaya” R-107，株高短且穗状分枝。为了表征R-107，我们绘制了半侏儒症和分支尖峰的基因图。来自R-107的半矮人基因Rht_R107（高度降低的R107）与4BS染色体上的Rht11和Rht-B1b等位基因。 Rht_R107和Rht11都是隐性的，对赤霉素不敏感。微卫星作图表明，Rht_R107与4BS染色体上的Xwmc48（1.2 cM）连锁，Rht11也与4BS染色体上的Xgwm495标记（19.4 cM）连锁。通过使用微卫星标记对三个F2 种群进行基因分型，绘制了负责R-107分支突峰的位点。表型分析表明，在单个位点，分支性穗状花序处于隐性等位基因的控制之下。 bh（分支头）基因座位于2AS染色体上，标记Xgwm425位于bh基因的近侧。

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  • 来源
    《Genetic Resources and Crop Evolution》 |2012年第5期|p.831-837|共7页
  • 作者

    M. A. Haque; P. Martinek; S. Kobayashi; I. Kita; K. Ohwaku; N. Watanabe; T. Kuboyama;

  • 作者单位

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

    Agrotest Fyto, Ltd., Havlíčkova 2787, 767 01, Kroměříž, Czech Republic;

    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;

    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;

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

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Branched spike; Genetic resource; GA3-insensitive; Plant height; Semi-dwarfism; Triticum durum;

    机译：枝穗状花序;遗传资源;GA3不敏感;株高;半矮化;硬粒小麦;

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