作物学报2017，Vol.43Issue(8)：1149-1160,12.DOI:10.3724/SP.J.1006.2017.01149
普通菜豆籽粒大小与形状的QTL定位
QTL Mapping for Seed Size and Shape in Common Bean
摘要
Abstract
Common bean is one of the most important food legumes worldwide. Seed size and shape have a great effect on yield and seed quality. This research used an F2 population derived from a cross of Andean cultivar Long 270709 × Mesoamerican cul-tivar F5910 planted in Harbin, Heilongjiang and Beijing respectively to analyze the correlation among seed weight, seed length, seed width, seed height, seed length-to-width ratio and seed length-to-height ratio, and to detect QTL related to these traits. The correlation analysis showed that seed weight had a significant correlation with other traits related to seed size and shape. Software IciMapping 4.1 based on inclusive composite interval mapping was used to identify the additive QTL for seed size and shape. A total of 38 QTL were detected on 10 chromosomes except the first chromosome in Harbin environment with the PVE between 2.39% and 17.37%. A total of 21 QTL were detected on seven chromosomes (Chr.1, Chr.3, Chr.6, Chr.7, Chr.8, Chr.9, Chr.11) in Beijing environment with the PVE between 5.92% and 22.53%. Among them, four pairs of QTL were detected on the same marker interval, including seed weight QTL SW7 and SW7', seed weight QTL SW6.1 and SW6', seed length QTL SL6.1 and SL6.1', and seed height QTL SH11 and SH11'. The PVE of SW7, SW6.1, SL6.1, SW6', and SL6.1' was larger than 10%.关键词
普通菜豆/籽粒大小/粒形/数量性状位点(QTL)Key words
Common bean/Seed size/Seed shape/Quantitative trait locus (QTL)引用本文复制引用
耿庆河,王兰芬,武晶,王述民..普通菜豆籽粒大小与形状的QTL定位[J].作物学报,2017,43(8):1149-1160,12.基金项目
本研究由国家自然科学基金项目(31471559),国家现代农业产业技术体系建设专项(CARS-09)和国家科技支撑计划项目(2013BAD01B05-2-4)资助.This study was supported by the National Natural Science Foundation of China (31471559), the China Agriculture Research System (CARS-09), and the National Key Technology R&D Program of China (2013BAD01B05-2-4). （31471559）
