文献类型： 外文期刊
作者： Kong, Lingping 1 ; Wang, Yanping 3 ; Chen, Liyu 1 ; Fang, Ran 1 ; Li, Yaru 1 ; Fang, Chao 1 ; Dong, Lidong 1 ; Yuan, Xiaohui 4 ; Kong, Fanjiang 1 ; Liu, Baohui 1 ; Cheng, Qun 1 ; Lu, Sijia 1 ;
作者机构： 1.Guangzhou Univ, Sch Life Sci, Guangdong Key Lab Plant Adaptat & Mol Design, Guangzhou, Peoples R China
2.Guangzhou Univ, Innovat Ctr Mol Genet & Evolut, Sch Life Sci, Guangzhou, Peoples R China
3.Heilongjiang Acad Agr Sci, Mudanjiang, Peoples R China
4.Wuhan Univ Technol, Sch Comp Sci & Technol, Wuhan, Peoples R China
5.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Innovat Acad Seed Design, Key Lab Soybean Mol Design Breeding, Harbin, Peoples R China
关键词： Plant height; Node number; Internode length; Soybean; Quantitative trait locus
期刊名称：MOLECULAR BREEDING （ 影响因子：3.1； 五年影响因子：3.1 ）
ISSN： 1380-3743
年卷期： 2023 年 43 卷 1 期
页码：
收录情况： SCI
摘要： Plant height and node number are important agronomic traits that influence yield in soybean (Glycine max L.). Here, to better understand the genetic basis of the traits, we used two recombinant inbred line (RIL) populations to detect quantitative trait loci (QTLs) associated with plant height and node number in different environments. This analysis detected 9 and 21 QTLs that control plant height and node number, respectively. Among them, we identified two genomic regions that overlap with Determinate stem 1 (Dt1) and Dt2, which are known to influence both plant height and node number. Furthermore, different combinations of Dt1 and Dt2 alleles were enriched in distinct latitudes. In addition, we determined that the QTLs qPH-13-SE and qPH-13-DW in the two RIL populations overlap with genomic intervals associated with plant height and the QTL qNN-04-DW overlaps with an interval associated with node number. Combining the dwarf allele of qPH-13-SE/qPH-13-DW and the multiple-node allele of qNN-04-DW produced plants with ideal plant architecture, i.e., shorter main stems with more nodes. This plant type may help increase yield at high planting density. This study thus provides candidate loci for breeding elite soybean cultivars for plant height and node number.
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