Fine mapping a domestication-related QTL for spike-related traits in a synthetic wheat

doi:10.1139/G10-066

	Fine mapping a domestication-related QTL for spike-related traits in a synthetic wheat
	Wang, Jin 1,2; Liao, Xiangzheng 1; Li, Yulian 1; Zhou, Ronghua 1; Yang, Xueju 2; Gao, Lifeng 1; Jia, Jizeng 1
刊名	GENOME
	2010
卷号	53 期号:10 页码:798-804
关键词	wheat substitution mapping synthetic grain number quantitative trait locus domestication
ISSN号	0831-2796
DOI	10.1139/G10-066
通讯作者	Wang, Jin
英文摘要	QTL analysis using a BC(5)F(2:3) mapping population derived from a cross between Am3, a synthetic hexaploid wheat as a donor parent, and Laizhou953, a Chinese winter wheat cultivar as a recurrent parent, showed that variation at the microsatellite locus Xgwm113 on chromosome 4B was associated with variation in grain number per spike (GN), spike length (SL), and spikelet number per spike (SPI). The Qgn.caas-4B, Qsl.caas-4B, and Qspi.caas-4B were responsible for 16.6%-35.6%, 18.0%-32.3%, and 23.7%-25.9% of the phenotypic variation present in two environments, respectively. Segregation for GN fit a Mendelian monogenic ratio. A subpopulation consisting of 497 plants was used to map the QTL to a 1.2 cM interval between Xgwm113 and Xgwm857. The three spike traits, GN, SL, and SPI, were correlated and were thus probably under the pleiotropic control of the QTL. The Am3 allele had a reduction effect on all three spike traits. Evidence for positive selective history on SSR locus Xgwm113 was supported using Ewens-Watterson's statistic test on a germplasm panel of wild and landrace entries, suggesting that this genomic region may contain genes under selection during wheat domestication.
学科主题	Biotechnology & Applied Microbiology ; Genetics & Heredity ; BIOTECHNOLOGY & APPLIED MICROBIOLOGY ; GENETICS & HEREDITY
语种	英语
出版者	CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
WOS记录号	WOS:000283308300006
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5393]
专题	作物科学研究所_分子生物学系
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	Wang, Jin,Liao, Xiangzheng,Li, Yulian,et al. Fine mapping a domestication-related QTL for spike-related traits in a synthetic wheat[J]. GENOME,2010,53(10):798-804.
APA	Wang, Jin.,Liao, Xiangzheng.,Li, Yulian.,Zhou, Ronghua.,Yang, Xueju.,...&Jia, Jizeng.(2010).Fine mapping a domestication-related QTL for spike-related traits in a synthetic wheat.GENOME,53(10),798-804.
MLA	Wang, Jin,et al."Fine mapping a domestication-related QTL for spike-related traits in a synthetic wheat".GENOME 53.10(2010):798-804.