首页> 外文期刊>Genetic Resources and Crop Evolution >Molecular characterization of a novel waxy allele (Wx-A u 1a) from Triticum urartu Thum. ex Gandil.
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Molecular characterization of a novel waxy allele (Wx-A u 1a) from Triticum urartu Thum. ex Gandil.

机译:普通小麦的蜡质等位基因(Wx-A u 1a)的分子表征。前甘地。

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摘要

Granule Bound Starch Synthase I, or waxy protein, is the sole enzyme responsible for the accumulation of amylose during the development of starch granules in wheat. The full coding region of the waxy (Wx) gene was sequenced in Triticum urartu, (a wild diploid species) and is related to the A genome of polyploid wheats. The Wx gene of T. urartu (Wx-A u 1) showed a homology of ~88.0 % with Wx-A1 from polyploid wheats. A greater homology was found with Wx-A m 1 from the diploid cultivated wheat einkorn. Most of the differences were found in introns although several changes were also detected in exons that led to amino acid changes in the transit peptide and mature protein. These results show the potential of T. urartu as a source of new alleles that could be used in the breeding of durum and common wheat in order to synthesize starches with different properties.
机译:颗粒结合的淀粉合酶I,或蜡质蛋白,是小麦淀粉颗粒发育过程中负责直链淀粉积累的唯一酶。蜡质(Wx)基因的完整编码区已在Triticum urartu(一种野生二倍体物种)中测序,并与多倍体小麦的A基因组有关。乌拉尔木霉的Wx基因(Wx-A u 1)与多倍体小麦的Wx-A1同源性约为88.0%。发现与二倍体栽培的小麦einkorn的Wx-A m 1具有更大的同源性。大多数差异在内含子中发现,尽管在外显子中也检测到一些变化,这些变化导致转运肽和成熟蛋白中的氨基酸发生变化。这些结果表明,乌拉尔木霉(T. urartu)作为新等位基因的来源,可用于硬粒小麦和普通小麦的育种,以合成具有不同特性的淀粉。

著录项

  • 来源
    《Genetic Resources and Crop Evolution》 |2012年第6期|p.971-979|共9页
  • 作者单位

    Departamento de Genética, Escuela Técnica Superior de Ingeniería Agronómica y de Montes, Edificio Gregor Mendel, Campus de Rabanales, Universidad de Córdoba, CeiA3, 14071, Córdoba, Spain;

    Departamento de Genética, Escuela Técnica Superior de Ingeniería Agronómica y de Montes, Edificio Gregor Mendel, Campus de Rabanales, Universidad de Córdoba, CeiA3, 14071, Córdoba, Spain;

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

    Genetic resources; Starch; T. urartu; Waxy proteins;

    机译:遗传资源;淀粉;T。 urartu;蜡质蛋白;

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