Identification of QTLs for seed dormancy in rice (Oryza sativa L.)

doi:10.1111/j.1439-0523.2010.01829.x

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	Identification of QTLs for seed dormancy in rice (Oryza sativa L.)
	Xie, Kun 1; Jiang, Ling 1; Lu, BingYue 1; Yang, ChunYan 1; Li, LinFang 1; Liu, Xi 1; Zhang, Long 1; Zhao, ZhiGang 1; Wan, JianMin 1,2
刊名	PLANT BREEDING
	2011
卷号	130 期号:3 页码:328-332
关键词	seed dormancy QTL back-cross-inbred lines rice (Oryza sativa L )
ISSN号	0179-9541
DOI	10.1111/j.1439-0523.2010.01829.x
通讯作者	Xie, Kun
英文摘要	P>Preharvest sprouting (PHS) can damage end-use quality in a number of cereal crop species. The trait is closely related to seed dormancy, for which there is known genetic variation in rice and other cereals. A set of 122 back-cross-inbred lines from the cross of 'N22' (indica, strongly dormant) and 'Nanjing 35' (japonica, no-dormant) were used to identify quantitative trait loci (QTL) for seed dormancy. Three QTL were detected on chromosomes 1, 2 and 3, and the proportion of the phenotypic variance explained by each was 18%, 8% and 7%. At all three loci, the dormancy-increasing allele was inherited from cv. 'N22'. To map the chromosome 1 locus qSd-1 more precisely, an advanced back-cross (BC(6)F(2)) population was developed. The result of this population indicated that qSd-1 is in fact a pair of distinct, linked loci qSd-1-1 and qSd-1-2, which act additively to promote dormancy. Simple Sequence Repeats (SSRs) closely linked to each of the QTL identified should allow for the marker-assisted transfer of the dormancy shown by cv. 'N22' for the improvement of the PHS of low dormancy cultivars.
学科主题	Agronomy ; Biotechnology & Applied Microbiology ; Plant Sciences ; AGRONOMY ; BIOTECHNOLOGY & APPLIED MICROBIOLOGY ; PLANT SCIENCES
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000291225100004
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5311]
专题	作物科学研究所
作者单位	1.Nanjing Agr Univ, State Key Lab Crop Genet & Germplasm Enhancement, Res Ctr Jiangsu Plant Gene Engn, Nanjing 210095, Peoples R China 2.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Xie, Kun,Jiang, Ling,Lu, BingYue,et al. Identification of QTLs for seed dormancy in rice (Oryza sativa L.)[J]. PLANT BREEDING,2011,130(3):328-332.
APA	Xie, Kun.,Jiang, Ling.,Lu, BingYue.,Yang, ChunYan.,Li, LinFang.,...&Wan, JianMin.(2011).Identification of QTLs for seed dormancy in rice (Oryza sativa L.).PLANT BREEDING,130(3),328-332.
MLA	Xie, Kun,et al."Identification of QTLs for seed dormancy in rice (Oryza sativa L.)".PLANT BREEDING 130.3(2011):328-332.