大豆科学2012，Vol.31Issue(1)：1-8,8.
大豆生育期相关性状QTL定位
Mapping QTLs for Growth Period Related Traits in Soybean
摘要
Abstract
One F2 population(316 plants)derived from a cross between Jiangpu wild soybean-5 and cultivar soybean line Nan nong 06-17 was used to construct a genetic linkage map by JoinMap 3. 0. In total,210 markers(207 molecular markers and 3 morphological markers) were mapped. The constructed linkage map covered 2 205. 85 Cm and consisted of 24 linkage groups ( LGs) ,with an average distance between markers of 11. 09 Cm. Four growth period related traits including whole growth period (WGP) , vegetative period (VP) .reproductive period (RP) and growth period structure trait ( RV ) of 2007 F2,2008 F2:3 and 2009 F2:4 were mapped by mixed-model-based composite interval mapping ( MCIM). We detected 15 additive-dominant QTLs and 9 pairs of epistatic QTLs. QTL clusters( QTLs of different traits in the same marker) and QTLs interaction networks( the in teraction among QTLs) were found. Three major QTLs were Qvp-H-1, Qwgp-H-1 and Qrv-H-l. Additive effect of Qvp-H-1, Qwgp-H-1 and Qrv-H-1 accounted for 21. 31% ,13. 14% and 9. 37% genetic variation respectively. These results will provide a basis for molecular marker-assisted selection, elite genes-discovering and soybean genetic basis-broadening.关键词
生育期相关性状/QTL定位/上位性QTLKey words
Growth period related traits/QTL mapping/Epistatic QTL分类
农业科技引用本文复制引用
阚贵珍,胡振宾,童振峰,张丹,郝德荣,印志同,喻德跃..大豆生育期相关性状QTL定位[J].大豆科学,2012,31(1):1-8,8.基金项目
国家重点基础研究发展计划(973计划)资助项目(2010CB125906) （973计划）
南京农业大学青年科技创新基金资助项目(KJ2011004). （KJ2011004）
