沈阳农业大学学报2011，Vol.42Issue(2)：142-146,5.
水稻柱头外露性状的遗传分析及QTL定位
Inheritance Analysis and Detection of QTLs for Exserted Stigma Rate in Rice
摘要
Abstract
After crossing between 60B (P1 with high exserted stigma rate) and Liaojing 9 (P2 with low exserted stigma rate), the genetic effects for the stigma exserting traits including glume-opening single exserted stigma rate, glume-opening dual exserted stigma rate, glume-opening exserted stigma rate, glume-closed single exseited stigma rate, glume-closed dual exerted stigma rate, glume-closed exserted stigma rate were analyzed by the mixed genetic model between major genes and multiple minor genes by taking the P1, P2, F1 and F2 as the materials. At the same time, QTLs for these traits were detected by the method of CIM with F2 population. The results showed that exserted stigma rate was controlled by E-2, E-1, E-1, E-0, E-1, E-1 model. Twelve QTLs associated with six trails of exserted stigma rate were identified on chromosome 1, 2, 5, 8, 9. The biggest dominanat effect QTL was located in interval of RM257～RM215 on chromosome 9, the LOD value was 12.955, explaining 32.04% of the total phenotypic variation. The result of genetic effect analysis was almost consistent with that of QTL analysis.关键词
水稻/柱头外露率/主基因+多基因混合遗传模型/QTL定位Key words
rice/exserted stigma rate/mixed genetic model between major gene and multiple minor genes/QTL分类
农业科技引用本文复制引用
陈爱国,华泽田,王嫘,李志彬,苏玉安,肖艳云,王彦荣..水稻柱头外露性状的遗传分析及QTL定位[J].沈阳农业大学学报,2011,42(2):142-146,5.基金项目
国家“863”计划项目(2010AA101302) （2010AA101302）
辽宁省工程技术中心专项项目(2010402016) （2010402016）
