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首页> 外文会议>International Wheat Genetics Symposium >Glu-Dl and Glu-B3 glutenin composition and quality characteristics of the diverse wheat gene pool used by the CIMMYT bread wheat-breeding program.
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Glu-Dl and Glu-B3 glutenin composition and quality characteristics of the diverse wheat gene pool used by the CIMMYT bread wheat-breeding program.

机译：Glu-DL和Glu-B3谷蛋白组成和CIMMYT面包小麦育种计划使用的多样性小麦基因库的质量特征。

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Breeders at CIMMYT use bread wheat germplasm of diverse origin (Australia, Canada, USA, China, etc.) to develop novel germplasm, which is distributed globally to support local breeding programs in producing wheat varieties for the manufacture of diverse baking products (e. g., flat breads, leavened breads, and steamed breads). Quality characteristics (mixographic properties, dough strength, and dough extensibility) and their relationship with Glu-Dl and Glu-B3 glutenin allelic variants were examinedin genetically diverse populations, which included normal IB/IB and 1B/1R translocation genotypes. The highest frequency of superior quality genotypes corresponded to Canadian wheat, followed by that from USA, Australia and CIMMYT. Chinese germplasm wasgenerally inferior in quality. As expected, the translocated wheat cultivars and those with the HMW-glutenin 2+12 possessed poorer quality compared to those containing IB/IB and the 5+10 subunit, respectively. Glu-B3 LMW subunits d, c, i, and g or f whencombined with GIn-A3d, were associated with stronger dough, while the Glu-B3 subunits f and j produced intermediate to weak dough. Glu-B3 LMW subunits c, d, and f or g when combined with Glu-A3d, were associated with very good extensibility, while limited extensibility was associated with subunit h. Some cultivars carrying the 1B/1R transiocation showed acceptable quality attributes.
机译：在不同来源的利用CIMMYT小麦种质资源（澳大利亚，加拿大，美国，中国等）的育种开发新的种质资源，其分布在全球各地，以支持当地的育种计划生产的小麦品种多样的烘焙产品的生产（例如，扁面包，熘面包和馒头）。质量特性（mixographic特性，面团的强度，和面团延展性）和它们的用Glu-DL和Glu-B3麦谷蛋白的等位基因变体examinedin遗传多样的群体的关系，其中包括正常IB / IB和1B / 1R易位基因型。品质出众基因型频率最高相当于加拿大小麦，其次是美国，澳大利亚和CIMMYT。中国的种质质量低劣wasgenerally。正如所料，易位小麦品种和那些与HMW-谷蛋白2 + 12相比含有IB / IB和5 + 10亚基，分别拥有那些质量较差。的Glu-B3 LMW亚基d，C，I，和g或f whencombined用Gln-A3D，用更强的面团相关联，而谷氨酸-B3亚基f和Ĵ产生的中间至弱面团。的Glu-B3 LMW亚基C，d和f或当用Glu-A3D组合克，用非常良好的可扩展相关联，而有限的可扩展性，用H亚基相关联。携带1B / 1R transiocation一些品种显示出可接受的质量属性。

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