数字农科院2.0

GmMs1 encodes a kinesin-like protein essential for male fertility in soybean (Glycine max L.)

文献类型： 外文期刊

作者： Muhammad Nadeem;Andong Chen;Huilong Hong;Dongdong Li;Jiajia Li;Duo Zhao;Wei Wang;Xiaobo Wang;Lijuan Qiu

作者机构：

关键词： metabolome sequencing;nuclear male sterility;soybean;third generation sequencing;transcriptome sequencing

期刊名称： Journal of Integrative Plant Biology

ISSN： 1672-9072

年卷期： 2021 年 63.0 卷 6.0 期

页码：

收录情况： JCR（2021版） ; CSCD（2020-2021年度） ; 科技核心（2020版）

摘要： The application of heterosis is a promising approach for greatly increasing yield in soybean (Glycine max L.). Nuclear male sterility is essential for hybrid seed production and the utilization of heterosis. Here we report the cloning of the gene underlying the soybean male-sterile mutant ms-1, which has been widely used for recurrent selection in soybean breeding programs. We initially delimited the ms1 locus to a 16.15 kb region on chromosome 13, based on SLAF_BSA sequencing followed by genotyping of an F2 population segregating for the locus. Compared with the same region in fertile plants, the mutant region lacks a sequence of approximately 38.7 kb containing five protein-coding genes, including an ortholog of the kinesin-like protein gene NACK2, named GmMs1. The GmMs1 knockout plants generated via CRISPR/Cas-mediated gene editing displayed a complete male-sterile phenotype. Metabolic profiling showed that fertile anthers accumulated starch and sucrose normally, whereas sterile anthers had higher anthocyanin levels and lower flavonoid levels and lower antioxidant enzyme activities. These results provide insights into the molecular mechanisms governing male sterility and demonstrate that GmMs1 could be used to create male-sterile lines through targeted mutagenesis. These findings pave the way for designing seed production technology and an intelligent male-sterile line system to utilize heterosis in soybean.

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