作物学报2011，Vol.37Issue(2)：249-254,6.DOI:10.3724/SP.J.1006.2011.00249
两种环境下甘蓝型油菜含油量的差值QTL分析
Analysis of Difference QTLs for Oil Content between Two Environments in Brassica napus L.
摘要
Abstract
Based on the genetic linkage maps of Brassica napus L.established by our laboratory, QTLs for oil content difference between two environments were detected using composite interval mapping model.The mapping populations, SWU-1 and SWU-2, were planted in Wanzhou, Chongqing with high latitude and Beibei, Chongqing with low latitude in 2005, which contained 188 and 219 recombinant inbred lines, respectively.In the SWU-1 population, two difference QTLs were located in the linkage groups 2 and 7, which explained 10.31％–12.45％ of the phenotypic variation each.In the SWU-2 population, three difference QTLs were located in linkage groups 8 and 14, and a single QTL explained 6.60％–10.58％ of the phenotypic variation.The oil content difference of genotypes ranged from 0 to 18.66％ with coefficient of variation of 58.24％.This indicates the presence of environment-insensitive QTLs associated with oil content in rapeseed genotypes.In both environments, no visible linkage relationship was observed between QTLs for oil content difference and the QTLs for oil content.Therefore, it is inferred that sensitive and insensitive genes to environment might have a different genetic expression system to oil synthesis genes in Brassica napus.关键词
甘蓝型油菜/含油量/环境/差值QTL引用本文复制引用
李超,李波,曲存民,阎星颖,付福友,刘列钊,谌利,李加纳..两种环境下甘蓝型油菜含油量的差值QTL分析[J].作物学报,2011,37(2):249-254,6.基金项目
本研究由国家科技支撑计划项(2009BADA8B01),国家自然科学基金项目(31071450),重庆市攻关项目(CSTC,2010AA1014)和贵州省农业科学院创新基金项目[黔农科合(创新基金)2010007号]资助. （2009BADA8B01）
