作物学报2018，Vol.44Issue(4)：533-541,9.DOI:10.3724/SP.J.1006.2018.00533
利用DH和IF2群体检测甘蓝型油菜株高相关性状QTL
Detection of QTLs for Plant Height Related Traits in Brassica napus L. Using DH and Immortalized F2Population
摘要
Abstract
Plant height is one of the important agronomic traits in rapeseed. In this study, QTLs for plant height and plant height related traits in Brassica napus were evaluated in two years environments by using a doubled haploid(DH)population lines de-rived from the cross between two rapeseed cultivars, Express and SWU07, and an immortalized F2population generated by ran-domly permuted intermating of these DH lines. A total of 41 putative QTLs were identified for plant height and plant height re-lated traits and located on 13 linkage groups. Among them, nine QTLs were identified for plant height, located on A02, A09, C01, C02, and C06, respectively, with explained phenotypic variation ranging from 3.85% to 13.34%, 15 QTLs were identified for inflorescence length, located on A01, A02, A05, A08, A09, C01, C03, and C05, respectively, with explained phenotypic variation ranging from 3.82% to 9.52%, 11 QTLs were identified for the first branch height, located on A01, A03, A09, C01, and C03, re-spectively, with explained phenotypic variation ranging from 4.01% to 16.54%, four QTLs were identified for branch segment, located on A07, A09, C03, and C04, respectively, with explained phenotypic variation ranging from 4.79% to 8.10%, two QTLs were identified for average internode length, located on A07 and C05, respectively, with explained phenotypic variation ranging from 4.29% to 6.04%. Five of these QTLs were persistently expressed in different year environments or in different populations. These QTLs provide useful information for improving plant height in rapeseed breeding.关键词
甘蓝型油菜/株高相关性状/数量性状位点Key words
Brassica napus/plant height related traits/QTL引用本文复制引用
贺亚军,吴道明,傅鹰,钱伟..利用DH和IF2群体检测甘蓝型油菜株高相关性状QTL[J].作物学报,2018,44(4):533-541,9.基金项目
本研究由国家自然科学基金项目(31671729),国家重点研发计划项目(2016YFD0100202)和重庆市基础科学与前沿技术研究项目(cstc2017jcyjAX0391)资助.The study was supported by the National Natural Science Foundation of China(31671729),the National Key Research and Development Program of China(2016YFD0100202),and Chongqing Research Program of Basic Research and Frontier Technology(cstc2017jcyjAX0391). （31671729）
