首页|期刊导航|中国农业科学(英文版)|QTL Mapping and Epistasis Analysis for Yield Traits in an RIL Population of Rice (Oryza sativa L.)
中国农业科学(英文版)2003，Vol.2Issue(11)：1179-1186,8.
QTL Mapping and Epistasis Analysis for Yield Traits in an RIL Population of Rice (Oryza sativa L.)
QTL Mapping and Epistasis Analysis for Yield Traits in an RIL Population of Rice (Oryza sativa L.)
摘要
Abstract
A genetic linkage map consisting of 168 DNA markers was constructed based on a recombinant inbred line (RIL) population derived from a cross between a high yielding indica variety, Zhong156, and a low yielding indica variety, Gumei2. The markers on the linkage map were distributed on all 12 chromosomes and covered 1 447.9 cM of the genome. The parents and 304 RILs were grown in China National Rice Research Institute (CNRRI), Hangzhou, China, in 2001, over two seasons in a randomized block design. The statistic software of QTL Mapper 1.01 was applied to detect quantitative trait loci (QTLs) and additive by environment (AE) interactions for yield traits, including panicle length, number of panicles per plant, number of spikelets per panicle, number of filled grains per panicle, fertility and kilo-grain weight. A total of 30QTLs with significant additive effects located on all chromosomes, except chromosomes 5 and 9, and two QTLs with significant AE interactions, were detected. Thirty-one interactions of QTLs showing significant additive by additive epistatic effects for yield traits were also detected. Genetic contributions were generally lower for QTLs showing epistatic effects compared with QTLs showing additive effects. No significant interactions between epistasis and environment were detected.关键词
Yield traits/QTLs/Additive effect/Epistasis/Oryza sativa LKey words
Yield traits/QTLs/Additive effect/Epistasis/Oryza sativa L分类
农业科技引用本文复制引用
CAO Li-yong,ZHAN Xiao-deng,ZHUANG Jie-yun,ZHENG Kang-le ,CHENG Shi-hua..QTL Mapping and Epistasis Analysis for Yield Traits in an RIL Population of Rice (Oryza sativa L.)[J].中国农业科学(英文版),2003,2(11):1179-1186,8.基金项目
This work was supported by the Key Programof Zhejiang Province, China (010007015), the Na-tional 973 Program (2001CCA04100) and the Open Program of the Key Laboratory for Rice Biology,Ministry of Agriculture, China. （010007015）
