Genetic Variation of High Molecular Weight Glutenin Subunits in Wheat Accessions in China

doi:10.2135/cropsci2010.12.0724

	Genetic Variation of High Molecular Weight Glutenin Subunits in Wheat Accessions in China
	Guo, Xiaomin 1; Li, Hongqin 1; Xiang, Jishan 1; Xu, Xin 1; Liu, Weihua 1; Gao, Ainong 1; Yang, Xinming 1; Wang, Ruihui 2; Li, Xiuquan 1; Li, Lihui 1
刊名	CROP SCIENCE
	2011
卷号	51 期号:6 页码:2423-2429
ISSN号	0011-183X
DOI	10.2135/cropsci2010.12.0724
通讯作者	Guo, Xiaomin
英文摘要	The high molecular weight glutenin subunits (HMW-GS) are essential in determining bread-making quality, and knowing their composition can help in making appropriate decisions to improve wheat (Triticum aestivum L.) quality. The HMW-GS compositions of 189 Chinese wheat landraces (CWLs), 61 introduced lines (ILs), and 840 Chinese improved varieties (CIVs) were investigated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) in this study. The aim was to identify novel HMW-GS alleles and to compare the genetic diversity among the three groups. A total of 31 HMW-GS alleles and 86 allele combinations were found in all accessions. For CWL and CIV, the predominant pattern was (null, 7+8, 2+12), with a frequency of 71.6 and 26.0%, respectively. The predominant pattern in the IL was (null, 7+9, 2+12) with a frequency of 13.6%. The IL had the largest variation and the average index of genetic variation (H). The H was 0.6117, whereas CWL and CIV had H values of 0.2275 and 0.5161, respectively. In addition, the present study showed that an increase of 7+9 and 5+10 in the CIV came from the use of foreign parents. The results revealed that the IL was an important reservoir for improving Chinese wheat-quality characteristics such as grain protein content, hardness, and sodium dodecyl sulfate (SDS) sedimentation. Although the genetic variation in the CWL was low, it contained novel alleles (1Bx7.1* and 1By8.1*), which indicated that this group was also a potential resource for wheat-quality improvement.
学科主题	Agronomy ; AGRONOMY
语种	英语
出版者	CROP SCIENCE SOC AMER
WOS记录号	WOS:000295839200012
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5256]
专题	作物科学研究所_种质资源保存与研究中心
作者单位	1.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China 2.Hebei Agr Univ, Coll Agron, Baoding 071001, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xiaomin,Li, Hongqin,Xiang, Jishan,et al. Genetic Variation of High Molecular Weight Glutenin Subunits in Wheat Accessions in China[J]. CROP SCIENCE,2011,51(6):2423-2429.
APA	Guo, Xiaomin.,Li, Hongqin.,Xiang, Jishan.,Xu, Xin.,Liu, Weihua.,...&Li, Lihui.(2011).Genetic Variation of High Molecular Weight Glutenin Subunits in Wheat Accessions in China.CROP SCIENCE,51(6),2423-2429.
MLA	Guo, Xiaomin,et al."Genetic Variation of High Molecular Weight Glutenin Subunits in Wheat Accessions in China".CROP SCIENCE 51.6(2011):2423-2429.