中国水稻科学2012，Vol.26Issue(4)：409-416,8.DOI:10.3969/j.issn.1001-7216.2012.04.004
4个环境下稳定表达的控制粳稻穗角性状的新位点
New Stably Expressed Loci for Panicle Angle in japonica Rice in Four Environments
摘要
Abstract
Panicle angle of the RIL population derived from a cross between two japonica varieties Xiushui 79 and C Bao was investigated in four growing environments. Genetic analysis was conducted by mixed major gene plus polygene inheritance models, and QTI. identification was performed by QTLNetwork 2. 0 and composite interval mapping approach of WinQTLcart 2. 5 software in the RIL population. Results were as follow. 1) panicle angle was controlled by two major genes plus polygenes, mainly by major genes; 2) eight QTLs were detected by QTLNetwork 2.0 software,explaining 0. 01 % - 39. 89% phenotypic variation. 12 QTLs were detected by WinQTLcart 2. 5 software, explaining 2.83% -30.60% phenotypic variation. All the QTLs detected above were located on chromosomes 4, 5, 6, 7, 9 and 11. Of which, two major QTLs (qPA9. 2 and qPA9. 5) at RM3700-RM3600 and RM5652-RM410 and qPA9. 7 at RM257 -OSR28 were all detected by the two methods in the four environments. The negative effect alleles of the three QTLs were contributed by Xiushui 79; 3) eight pairs of epistatic QTLs with few effects were also detected. QTL × environment interactions were not significant for additive QTLs and epistatic QTL pairs.关键词
粳稻/穗角/生长环境/混合遗传模型/QTLKey words
japonica rice/ panicle angle/ growing environment/ mixed inheritance models/ QTL分类
农业科技引用本文复制引用
牛付安,刘健,郭媛,陈兰,江建华,洪德林..4个环境下稳定表达的控制粳稻穗角性状的新位点[J].中国水稻科学,2012,26(4):409-416,8.基金项目
高等学校学科创新引智计划资助项目(B08025) （B08025）
教育部科技基础条件平台重点资助项目(505005) （505005）
国家高技术研究发展计划资助项目(2010AA101301). （2010AA101301）
