Fine mapping of qKW7, a major QTL for kernel weight and kernel width in maize, confirmed by the combined analytic approaches of linkage and association analysis

doi:10.1007/s10681-016-1706-2

	Fine mapping of qKW7, a major QTL for kernel weight and kernel width in maize, confirmed by the combined analytic approaches of linkage and association analysis
	Li, Xin; Li, Yong-xiang; Chen, Lin; Wu, Xun; Qin, Weiwei; Song, Yanchun; Zhang, Dengfeng; Wang, Tianyu; Li, Yu; Shi, Yunsu
刊名	EUPHYTICA
	2016
卷号	210 期号:2 页码:221-232
关键词	Zea mays L. Kernel size (KS) Yield Fine mapping
ISSN号	0014-2336
DOI	10.1007/s10681-016-1706-2
通讯作者	Li, Xin
英文摘要	Kernel weight (KWEI), a complex quantitative trait that is largely determined by kernel size, is a key component of grain yield in maize. In our previous studies, qKW7, a putative pleiotropic QTL associated with both KWEI and kernel width (KWID), was detected within the 7.02 bin region on chromosome 7 by both F-2:3 population and recombinant inbred line (RIL) population from a Ye478 and Huangzaosi cross. Therefore, a series of backcross populations from the same cross have been developed for fine mapping qKW7. By using a large BC3F4 segregation population, the qKW7 QTL was mapped to a physical interval of 647 Kb with several genes. An association panel with 627 diverse inbred lines was used to process the association analysis, and the results indicated that three KWEI- and KWID-related quantitative trait nucleotides (QTNs) were tightly linked to qKW7. Sequence analysis revealed that all three detected QTNs were located within the gene region of GRMZM2G114706, which encodes an ankyrin protein kinase that regulates endosperm development. Finally, the putative genes responsible for qKW7 are discussed.
学科主题	Agronomy ; Plant Sciences ; Horticulture
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000379366800006
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/4498]
专题	作物科学研究所_种质资源保存与研究中心
作者单位	Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Li, Xin,Li, Yong-xiang,Chen, Lin,et al. Fine mapping of qKW7, a major QTL for kernel weight and kernel width in maize, confirmed by the combined analytic approaches of linkage and association analysis[J]. EUPHYTICA,2016,210(2):221-232.
APA	Li, Xin.,Li, Yong-xiang.,Chen, Lin.,Wu, Xun.,Qin, Weiwei.,...&Shi, Yunsu.(2016).Fine mapping of qKW7, a major QTL for kernel weight and kernel width in maize, confirmed by the combined analytic approaches of linkage and association analysis.EUPHYTICA,210(2),221-232.
MLA	Li, Xin,et al."Fine mapping of qKW7, a major QTL for kernel weight and kernel width in maize, confirmed by the combined analytic approaches of linkage and association analysis".EUPHYTICA 210.2(2016):221-232.