Stability of QTLs for rice grain dimension and endosperm chalkiness characteristics across eight environments

doi:10.1007/s00122-005-1976-x

CORC > 中国农业科学院 > 作物科学研究所

	Stability of QTLs for rice grain dimension and endosperm chalkiness characteristics across eight environments
	Wan, XY; Wan, JM; Weng, JF; Jiang, L; Bi, JC; Wang, CM; Zhai, HQ
刊名	THEORETICAL AND APPLIED GENETICS
	2005
卷号	110 期号:7 页码:1334-1346
ISSN号	0040-5752
DOI	10.1007/s00122-005-1976-x
通讯作者	Wan, XY
英文摘要	Rice appearance quality, including traits specifying grain dimension and endosperm chalkiness, represents a major problem in many rice-producing areas of the world. In this study, the genetic basis of six appearance quality traits of milled rice was dissected into quantitative trait loci (QTL) main effects, and the stability of these QTLs was assessed in a population of 66 chromosome segment substitution lines (CSSLs) across eight environments. The CSSLs showed transgressive segregation for many of the traits, and significant correlations were detected among most of the traits. Twenty-two QTLs were identified on eight chromosomes, and numerous QTLs affecting related traits were mapped in the same regions, probably reflecting pleiotropic effects. Nine QTLs, namely qGL-1,qGL-3, qGW-5,qLWR-3, qLWR-5,qPGWC-8, qPGWC-9, qACE-8, and qDEC-8, were consistently detected across the eight environments. The additive main effect and multiplicative interaction (AMMI) analysis showed that genotype (G)x environment (E) interaction was significant for all six traits, with the first three iPCA terms accounting for over 80% of the G x E variance. Both D-I values and the iPCA1-iPCA2 biplots showed that the CSSLs harboring the nine QTL alleles were more stable than those carrying any of the additional 13 QTL alleles, thereby confirming their environmental stability and pointing to their appropriateness as targets for marker-assisted selection for high-quality rice varieties.
学科主题	Agronomy ; Plant Sciences ; Genetics & Heredity ; Horticulture ; AGRONOMY ; GENETICS & HEREDITY ; HORTICULTURE ; PLANT SCIENCES
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000228846300020
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5772]
专题	作物科学研究所
作者单位	(1)Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China;(2)Nanjing Agr Univ, Jiangsu Plant Gene Engn Res Ctr, Natl Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Peoples R China
推荐引用方式 GB/T 7714	Wan, XY,Wan, JM,Weng, JF,et al. Stability of QTLs for rice grain dimension and endosperm chalkiness characteristics across eight environments[J]. THEORETICAL AND APPLIED GENETICS,2005,110(7):1334-1346.
APA	Wan, XY.,Wan, JM.,Weng, JF.,Jiang, L.,Bi, JC.,...&Zhai, HQ.(2005).Stability of QTLs for rice grain dimension and endosperm chalkiness characteristics across eight environments.THEORETICAL AND APPLIED GENETICS,110(7),1334-1346.
MLA	Wan, XY,et al."Stability of QTLs for rice grain dimension and endosperm chalkiness characteristics across eight environments".THEORETICAL AND APPLIED GENETICS 110.7(2005):1334-1346.