作物学报2012，Vol.38Issue(2)：256-263,8.DOI:10.3724/SP.J.1006.2012.00256
大豆叶片性状QTL的定位及Meta分析
Mapping and Meta-analysis of QTLs for Leaf Traits in Soybean
摘要
Abstract
Leaf length, width, and leafstalk length affect the photosynthetic capability of plant, and increasing photosynthetic rate per unit leaf area may improve seed yield in soybean. In this study, we analyzed QTLs data of soybean leaf length, width and leafstalk length from 2006 to 2010 with a F2:i4-F2:i8 of recombination inbred lines (RJL) population derived from a cross between Charleston and Dongnong 594 by mixed linear model approach. Eight QTLs for leaf length (LL) were mapped on the chromosomes GmOl, GmO2, Gm05, Gmll, Gml8 by software WinQTLCartographer Ver. 2.5, nine QTLs were identified for leaf width (LW) on the chromosomes GmOl, Gm03, Gm05, GmO6, Gmll, Gml2, Gml6; eight QTLs were identified for leafstalk length (LSL) on GmOl, Gm03, Gm05, GmO6, Gmll, Gml7, Gml8. QTLs qLL5a, qLL5b, qLLla, and qLL18 for LL, qLW5a, qLWlla, qLWllb, and qLW12 for LW, and qLSLllb for LSL were identified in more than two years. Furthermore, not only 72 QTLs of leaf traits that have been mapped in many different populations and environments were collected but also QTL mapped by WinQTLCartographer Ver. 2.5 were projected and integrated in the reference map with the software BioMercator2.1. In total, the consensus QTLs of five for leaf length and four for leaf width were obtained in soybean. The minimum confidence interval of leaf length was shrunk to 5.66 cM. These results would provide a basis for fine mapping of QTL and cloning genes in soybean.关键词
大豆/叶片性状/QTL定位/整合分析Key words
Soybean [Glycine max (L.) Merr.]/Leaf traits/QTL mapping/Meta-analysis引用本文复制引用
仕相林,孙亚男,王家麟,刘春燕,陈庆山,胡国华..大豆叶片性状QTL的定位及Meta分析[J].作物学报,2012,38(2):256-263,8.基金项目
本研究由国家现代农业产业体系(CARS-04-02A),国家公益性行业(农业)科研专项(200903003),黑龙江省重大科技攻关项目(GA09B103)和黑龙江省高校青年学术骨干支持计划项目(1152G007)资助. （CARS-04-02A）
