QTL mapping of grain appearance quality traits and grain weight using a recombinant inbred population in rice (Oryza sativa L.)

doi:10.1016/S2095-3119(15)61259-X

	QTL mapping of grain appearance quality traits and grain weight using a recombinant inbred population in rice (Oryza sativa L.)
	Gao Fang-yuan 1; Zeng Li-hua 2; Qiu Ling 1,2; Lu Xian-jun 1; Ren Juan-sheng 1; Wu Xian-ting 1; Su Xiang-wen 1; Gao Yong-ming 3; Ren Guang-jun 1
刊名	JOURNAL OF INTEGRATIVE AGRICULTURE
	2016
卷号	15 期号:8 页码:1693-1702
关键词	QTL appearance quality 1000-grain weight recombination inbred lines (RIL) rice
ISSN号	2095-3119
DOI	10.1016/S2095-3119(15)61259-X
通讯作者	Gao Fang-yuan
英文摘要	Grain appearance quality traits, measured as grain length (GL), grain width (GW), length to width ratio (LWR), grain thickness (GT) and the percentage of grain with chalkiness (PGWC), as well as 1000-grain weight (TGW), are very important factors that contribute to rice grain quality and yield. To detect quantitative trait loci (QTLs) affecting these traits, we developed a set of recombinant inbred lines (RILs) derived from Gang46B (G46B) and K1075, a G46B introgression line with lower PGWC. Based on a linkage map containing 33 simple sequence repeat (SSR) markers, a total of 15 additive QTLs governing six measured traits were identified on 4 chromosomes across two environments. Of these, the five major QTLs which controlled GW, LWR, GT, PGWC, and TGW, each explaining up to 44.30, 55.29, 62.30, 30.94, and 28.78% of the variation, respectively, were found in the same interval of RM18004-RM18068 on chromosome 5. The G46B alleles contributed to the increase in GW, GT and PGWC at all loci, as well as the increase in TGW at its major QTL locus. Significant interactions between additive QTL and the environment were found at most loci, in which the largest, accounting for 15.06% of variation, was observed between gPGWC-5 and the environment. A total of 15 epistasis QTLs were detected for all the traits, and GL, GW and PGWC had significant epistasis QTLs based on environment interactions with minor effects. These results are valuable for future map-based cloning of the QTLs and the collaborative improvement of G46B in grain appearance quality and yield.
学科主题	Agriculture, Multidisciplinary
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000381539700003
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/105357]
专题	作物科学研究所_分子生物学系
作者单位	1.Sichuan Acad Agr Sci, Crop Res Inst, Chengdu 610066, Peoples R China 2.Sichuan Normal Univ, Chengdu 610110, Peoples R China 3.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Gao Fang-yuan,Zeng Li-hua,Qiu Ling,et al. QTL mapping of grain appearance quality traits and grain weight using a recombinant inbred population in rice (Oryza sativa L.)[J]. JOURNAL OF INTEGRATIVE AGRICULTURE,2016,15(8):1693-1702.
APA	Gao Fang-yuan.,Zeng Li-hua.,Qiu Ling.,Lu Xian-jun.,Ren Juan-sheng.,...&Ren Guang-jun.(2016).QTL mapping of grain appearance quality traits and grain weight using a recombinant inbred population in rice (Oryza sativa L.).JOURNAL OF INTEGRATIVE AGRICULTURE,15(8),1693-1702.
MLA	Gao Fang-yuan,et al."QTL mapping of grain appearance quality traits and grain weight using a recombinant inbred population in rice (Oryza sativa L.)".JOURNAL OF INTEGRATIVE AGRICULTURE 15.8(2016):1693-1702.