Major genetic locus with pleiotropism  determined seed-related traits in cultivated and wild soybeans

In this study, we used a high-density genetic map constructed by F10 RIL populations from a cross between Glycine max and Glycine soja to detect additive QTLs for seven seed-related traits over the last three years. As a result, we identified one novel pleiotropic QTL, qSS14, that simultaneously controlled four seed size traits (100-seed weight, seed length, seed width, and seed thickness) and two consistently detected QTLs, qSW17, and qSLW02, in multiple years of phenotypic data. Furthermore, we predicted two, two and three candidate genes within these three critical loci based on the parental resequencing data and gene function annotations. And the relative expression of four candidate genes GLYMA_14G155100, GLYMA_17G061000, GLYMA_02G273100, and GLYMA_02G273300 showed significant differences among parents and the extreme materials through qRT-PCR analysis. These findings could facilitate the determination of beneficial genes in wild soybean and contribute to our understanding of the soybean domestication process.PMID:37165285 | DOI:10.1007/s00122-023-04358-2

Source: TAG. Theoretical and Applied Genetics - May 10, 2023 Category: Genetics & Stem Cells Authors: Baoqi Yuan Guangxun Qi Cuiping Yuan Yumin Wang Hongkun Zhao Yuqiu Li Yingnan Wang Lingchao Dong Yingshan Dong Xiaodong Liu Source Type: research