利用谷蛋白标记分析小麦品种遗传多样性和群体结构

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
A. Rai, Santoshkumar Singh, Sumit Kumar Singh, Poornima Sharma, A. Ahlawat, S. Han, A. Mahendru-Singh
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引用次数: 0

摘要

对谷蛋白多态性的研究为鉴定和分离优质谷蛋白基因型提供了可能。近年来,基于谷蛋白亚基多态性的小麦种质资源和品种的遗传多样性研究只捕获了一部分。为了分析这107个分布在印度不同农区的小麦品种,研究了HMW-GS和LMW-GS等位基因多态性、基因多样性和Glu-1和Glu-3位点的遗传变异。在不同的HMW-GS中,Glu-D1位点的遗传变异最大,其中Glu-D1a和Glu-D1d的遗传变异分别为0.490和0.484。在Glu-A3位点上,Glu-A3c和glu - a3b的遗传变异最大,分别为0.463和0.411。其次是Glu-B3j,在Glu-B3位点的遗传变异为0.386。20多年来,在印度新发布的品种中观察到Glu-D1d等位基因的显著增加。在所有区域中,Glu-A1-null是Glu-1位点上最不常见的等位基因,然而,它是印度NHZ的显性等位基因。本研究阐明了两个不同时期高分子量和低分子量等位基因频率和遗传变异与其地理分布的关系。本研究可为优质小麦品种的选育、品质评价和开发提供参考数据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analysis of genetic diversity and population structure using glutenin protein markers in various wheat varieties
The study of polymorphism of glutenin makes it possible to identify and isolate desirable genotypes with higher grain quality. In the last few years, only a part of the genetic diversity among the modern and popular wheat germplasm and varieties based on the polymorphism of glutenin subunits are captured. To address this 107 wheat varieties released across different agricultural zones in India, were used to investigate HMW-GS and LMW-GS allele polymorphism, gene diversity and genetic variation in the Glu-1 and Glu-3 loci. Among the different HMW-GS, the highest genetic variation was observed at the Glu-D1 locus with both Glu-D1a and Glu-D1d possessing genetic variation of 0.490, 0.484 respectively. The highest genetic variation at the Glu-A3 locus was observed at the Glu-A3c and GluA3b possessing a genetic variation of 0.463, 0.411 respectively. This was followed by the Glu-B3j having a genetic variation of 0.386 at the Glu-B3 locus. Over 20 years a remarkable increase in the Glu-D1d allele is observed in the newly released varieties in India. Among all the zones, Glu-A1-null is the least frequent allele at the Glu-1 locus, however, it is present as the predominant allele in the NHZ of India. This study elucidates the relationships of these HMW and LMW allelic frequencies and genetic variation with their geographical distribution over the two different periods. This study provides reference data that can be used to assist the breeding, quality evaluation and development of good-quality wheat varieties.
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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