作物学报2017，Vol.43Issue(5)：701-707,7.DOI:10.3724/SP.J.1006.2017.00701
花生出仁率QTL分析及其与荚果大小的相关性
Quantitative Trait Locus Analysis for Shelling Percentage and Correlation be-tween Shelling Percentage and Pod Size Related Traits in Arachis hypogaea
摘要
Abstract
Peanut is an important oil crops, and the shelling percentage of mature pods is correlated with not only peanut oil pro-duction but also shell thickness and the easiness of shelling. Therefore, shelling percentage is regarded as a major trait in peanut breeding. In this study, the shelling percentage and pod size related traits were evaluated in 2013 and 2014 using 188 recombinant inbred lines (RILs) derived from the cross between two Spanish-type peanut cultivars (Yuanza 9102 × Xuzhou 68-4). Twenty-nine RILs were found in greater shelling percentage than the high-value parent "Yuanza 9102". The shelling percentage was negatively correlated with pod length (P < 0.01), pod width (P < 0.01), pod thickness (P < 0.01), and 100-pod weight (P < 0.05). Using the CIM model in WinQTLcart 2.5, 22 QTLs associated with shelling percentage were identified in the two envi-ronments with the phenotypic variation explained ranging from 2.75% to 13.49%. Among these QTLs, five marker intervals de-tected in both years, i.e. AHGS0344–AGGS2438, AGGS0957–AHGA7048, AGGS0058–AHGA72558, AHTE0446–AHGA363492, and AGGS0311–AGGS2287, were located on LG02, LG03, and LG10 with the phenotypic variation explained ranging from 3.61% to 13.49%. Four marker intervals for shelling percentage found in this study have been reported for pod size related traits with opposite genetic effect using the same population in the previous study.AHGS0344–AGGS2438 on LG02 was detected for shelling percentage in both years and also detected for pod length in the previous study. The other three intervals were only de-tected in one year and also associated with pod length and 100-pod weight (AHTE0470–AGGS1233 on LG13), pod length (AGGS1363–AHGA24894 on LG06), and pod width and pod thickness (AHTE0381–AGGS0100 on LG18).关键词
花生/出仁率/QTL/相关分析Key words
Cultivated peanut/Shelling percentage/QTL/Correction analysis引用本文复制引用
蔡岩,周小静,罗怀勇,姜慧芳,徐志军,李振动,李新平,郭建斌,任小平,黄莉,陈伟刚,陈玉宁..花生出仁率QTL分析及其与荚果大小的相关性[J].作物学报,2017,43(5):701-707,7.基金项目
本研究由国家自然科学基金项目(31271764, 31371662, 31471534, 31461143022),农业部农作物种质资源保护项目(2015NWB035)和国家现代农业产业技术体系建设专项(CARS-14-花生种质资源评价)资助.This study was supported by the National Natural Science Foundation of China (31271764, 31371662, 31471534, 31461143022), the Crop Germplasm Resources Protection Project (2015NWB035), and the China Agriculture Research System (CARS-14-peanut resource evaluation). （31271764, 31371662, 31471534, 31461143022）
