水稻芽期耐冷性主效QTLqSCT-11的分子标记定位  

Mapping of Major QTLqSCT-11 for Early Seedling Cold Tolerance in Rice

作　　者：龚勋[1] 蔡海亚[2] 刘少佳[2] 章志宏[2] 

机构地区：[1]毕节学院环境与生命科学系,贵州毕节551700 [2]武汉大学生命科学学院,湖北武汉430072

出　　处：《毕节学院学报（综合版）》2008年第4期71-74,共4页Journal of Bijie University

基　　金：国家自然科学基金;项目编号:No.30570991

摘　　要：以粳籼交Lemont/Teqing的F_(13)RILs群体为作图群体,构建水稻芽期耐冷性主效QTLqSCT-11所在染色体区段的高密度分子标记连锁图谱,用于主效QTLqSCT-11的分子标记定位与分析。通过测定粳籼交Lemont/Teqing的RILs群体在10℃低温的芽期耐冷性,用WinQTL Cart2.5软件对耐冷性性状进行复合区间作图,结果表明此主效QTL位于11号染色体短臂近着丝粒区域ID7924-3与RM202标记之间。In order to identify the major QTLqSCT-11 in specific genome region of chr 11, a high-density molecular linkage map of chr 11 in specific genome region was constructed. A recombinant inbred line population derived from an japonica - indica cross （Lemont/Teqing） were assessed for cold tolerance at early seedling stage at 10℃. The date combined with the high-density molecular linkage map of chr 11 were used to map the major QTL conferring cold tolerance by a computer program WinQTLCart based on composite interval mapping. According to the mapping results, the major QTLqSCT-11 was identified between adjacent markers 197924-3 and RM202 , which was also adjacent to the centromere region of chr l 1.

关 键 词：水稻(Oryza SATIVA L.) 耐冷性 分子标记 连锁图谱 数量性状基因座位(QTL) 

分 类 号：Q94[生物学—植物学]