利用F_2及其衍生群体定位陆地棉产量和纤维品质性状QTLs  

QTL Mapping of Yield and Fiber Quality Traits in Upland Cotton(Gossypium hirsutum L.) Using F_2 and Its Derived Populations

作　　者：倪会娟[1] 王威[1] 张建[1] 刘大军[1] 滕中华[1] 张正圣[1] 

机构地区：[1]西南大学农学与生物科技学院农业部生物技术与作物品质改良重点实验室,重庆400716

出　　处：《西南大学学报（自然科学版）》2011年第6期7-14,共8页Journal of Southwest University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(30871556;30571187);国家高新技术研究发展计划(863计划)资助项目(2006AA10Z1D3)

摘　　要：以陆地棉(Gossypiumhirsutum L.)丰产品种中棉所35和优质品种渝棉1号杂交产生的F2群体为材料,利用SSR标记构建了包含46个连锁群和303个位点的连锁图谱.该图覆盖2 543.6 c M,约占四倍体棉花基因组的57.2%,标记间平均距离为8.4 c M.应用MQM作图法分析F2及其衍生群体家系的产量和纤维品质性状,共得到25个产量和23个纤维品质性状QTLs,其中1个QTL(qFS07-1)在3个环境下检测到,2个QTLs(qFS20-1和qFS21-1)在2个环境下检测到.在检测到的QTLs中,22个分布在A亚组,26个分布在D亚组.An F2 population from a cross between upland cotton high-yield cultivar CRI 35 and high-quality cultivar Yumian 1 was used to construct the linkage map with simple sequence repeat（SSR）,and a linkage map containing 46 linkage groups and 303 SSR was constructed.The map covered 2 543.6 cM with an average distance of 8.4 cM between two markers and accounted for 57.2% of the whole tetraploid cotton genome.Multiple QTL mapping（MQM） was used to identify QTLs for yield and fiber quality traits in F2 and F2-derived populations,and 48 QTLs were identified.These included 25 QTLs for yield traits and 23 QTLs for fiber quality traits.One QTL（qFS07-1） was detected in three environments,and two（qFS20-1 and qFS21-1） were detected in two environments.Of the QTLs detected,22 were distributed on A genome and 26 on D genome.

关 键 词：陆地棉 遗传连锁图谱 产量 纤维品质 数量性状基因座(QTL) 

分 类 号：S562[农业科学—作物学]