QTL effects and epistatic interaction for flowering time and branch number in a soybean mapping population of JapanesexChinese cultivars
文献类型: 外文期刊
第一作者: Yang Guang
作者: Yang Guang;Xie Fu-ti;Zhai Hong;Wu Hong-yan;Zhang Xing-zheng;Wang Ya-ying;Li Yu-qiu;Hu Bo;Wang Lu;Xia Zheng-jun;Zhang Xing-zheng;Wang Ya-ying;Li Yu-qiu;Wang Lu;Yang Guang;Lu Shi-xiang;Wen Zi-xiang;Wang De-chun;Wang Shao-dong;Harada, Kyuya
作者机构:
关键词: soybean;quantitative trait loci;SNP;flowering time;branch number
期刊名称:JOURNAL OF INTEGRATIVE AGRICULTURE ( 影响因子:2.848; 五年影响因子:2.979 )
ISSN: 2095-3119
年卷期: 2017 年 16 卷 9 期
页码:
收录情况: SCI
摘要: Flowering time and branching type are important agronomic traits related to the adaptability and yield of soybean. Molecular bases for major flowering time or maturity loci, El to E4, have been identified. However, more flowering time genes in cultivars with different genetic backgrounds are needed to be mapped and cloned for a better understanding of flowering time regulation in soybean. In this study, we developed a population of Japanese cultivar (Toyomusume)xChinese cultivar (Suinong 10) to map novel quantitative trait locus (QTL) for flowering time and branch number. A genetic linkage map of a F-2 population was constructed using 1 306 polymorphic single nucleotide polymorphism (SNP) markers using Illumine S0ySNP8k iSelect BeadChip containing 7 189 (SNPs). Two major QTLs at El and E9, and two minor QTLs at a novel locus, qFT2_1 and at E3 region were mapped. Using other sets of F-2 populations and their derived progenies, the existence of a novel QTL of qFT2_1 was verified. qBR6_1, the major QTL for branch number was mapped to the proximate to the El gene, inferring that El gene or neighboring genetic factor is significantly contributing to the branch number.
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