Pedigree-based genetic dissection of quantitative loci for seed quality and yield characters in improved soybean.
Pedigree-based genetic dissection of quantitative loci for seed quality and yield characters in improved soybean.
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基于系谱的改良大豆种子品质和产量性状数量位点的遗传解析
DOI：
10.1007/s11032-021-01211-6
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发表时间：
2021-02
影响因子：
3.1
通讯作者：
Sun, Lianjun
中科院分区：
文献类型：
--
作者：
Huang, Wenxuan;Hou, Jingjing;Hu, Quan;An, Jie;Zhang, Yanwei;Han, Qi;Li, Xuhui;Wu, Yueying;Zhang, Dajian;Wang, Jianhua;Xu, Ran;Li, Li;Sun, Lianjun
由于大豆在植物油脂和蛋白质供应中发挥着不可或缺的作用，根据人类需求平衡种子品质与产量性状之间的关系已成为大豆改良的重要育种目标。以齐黄34号（QH34）和冀豆17号（JD17）杂交获得的256个种内重组自交系（RILs）为材料，对4个主要理化性状进行了QTL定位，旨在探索优良等位基因在我国种质资源中的分布。共检测到25个QTL，其中10个QTL遗传自亲本QH34。对这些QTL上的有利等位基因进行系谱分析，结果表明，这些优异等位基因在QH34中的迁移过程。对25个QTL进行Meta分析，与已有的QTL进行比较，共发现17个新的QTL。已检测到具有多效性效应的QTL。在此基础上，筛选出3个具有代表性的、在大豆育种中具有巨大潜力的优良重组自交系，并最终鉴定出4个与粒重相关的候选基因。这些QTL的发现为种质资源的多样性和稀有性的结合提供了新的指导，可有效增加群体遗传多样性，拓宽品种的遗传基础。
As soybean plays an indispensable role in the supply of vegetable oil and protein, balancing the relationship between seed quality and yield traits according to human demand has become an important breeding goal for soybean improvement. Here, 256 intraspecific recombinant inbred lines (RILs), derived from a cross between Qi Huang No.34 (QH34) and Ji Dou No.17 (JD17), were used for quantitative trait loci (QTLs) mapping with remarkable four chemical and physical properties with a purpose for exploring the distribution of excellent alleles in germplasm resources in China. A total of 25 QTLs were detected, of which 10 QTLs inherited the alleles from the parent QH34. Pedigree research on favorable alleles on these QTLs showed the process of excellent alleles pyramided into QH34. Meta-analysis of the 25 QTLs by comparing with existed QTLs in previous study identified 17 novel QTLs. QTLs with pleiotropic effects have been detected. Furthermore, three representative elite recombinant inbred lines in different locations that have great potential in soybean breeding were selected, and finally, four seed weight-related candidate genes were identified. The discovery of these QTLs provides a new guidance for combining the diversity and rarity of germplasm resources, which can effectively increase population genetic diversity and broaden genetic basis of varieties.
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影响因子：
11.6
作者：
JOFUKU, KD;DENBOER, BGW;OKAMURO, JK
通讯作者：
OKAMURO, JK
影响因子：
5.4
作者：
Lee, SH;Bailey, MA;Boerma, HR
通讯作者：
Boerma, HR
影响因子：
2.3
作者：
Specht, JE;Chase, K;Lark, KG
通讯作者：
Lark, KG
影响因子：
1.9
作者：
Chapman, A;Pantalone, VR;Gresshoff, PM
通讯作者：
Gresshoff, PM
影响因子：
5.2
作者：
Li, Ying-hui;Reif, Jochen C.;Qiu, Li-juan
通讯作者：
Qiu, Li-juan