棉花学报2012，Vol.24Issue(2)：97-105,9.
鲁棉研15号纤维品质性状QTL定位研究
QTL Mapping for Fiber Quality Properties in Lumianyan 15
摘要
Abstract
In this study, the F2 mapping population was assembled using the parents of hybrid Lumianyan 15 (613 and R55) to construct a genetic linkage map with SSR markers using JoinMap 3.0 software. The QTLs for fiber quality properties in three F2:3 subpopulations were mapped by the composite interval mapping method. A genetic linkage map included 116 SSR loci and 25 linkage groups, covering 892.25 cM and accounting for 20.05% of the cotton genome. The average number of markers per linkage group was 4.64 and the average distance of markers was 7.76 cM. A total of 19 groups were anchored to the chromosomes based on the results of previous studies. Based on data analyses, 46 QTLs were identified in three F2;, subpopulations, including 16 QTLs for fiber length, 7 for fiber strength, 12 for fiber micronaire, 6 for fiber elongation, and 5 for fiber uniformity. Some QTLs were clustered on chromosomes Ah05, Ah08, Ah09, and Dh02. The results revealed that some QTLs could be stably inherited and durable in different environments among the three subpopulations. These QTLs can be used for molecular breeding of fiber quality traits in cotton.关键词
棉花/纤维品质/QTL定位/鲁棉研15号Key words
upland cotton/ fiber quality/ QTL mapping/ Lumianyan 15分类
农业科技引用本文复制引用
王琳,刘方,黎绍惠,王春英,张香娣,王玉红,华金平,王坤波..鲁棉研15号纤维品质性状QTL定位研究[J].棉花学报,2012,24(2):97-105,9.基金项目
国家863计划(2009AA101104),国家自然科学基金(31071466),中央级公益性院所基本科研业务费(SJA0901) （2009AA101104）
