Characterization of maize male sterile 2 mutant by phenotypic and RNA sequencing analyses

文献类型： 外文期刊

第一作者： Kang, Dan

作者： Kang, Dan;Wang, Cuiyun;Xu, Qilong;Wang, Guoying;Liu, Yunjun

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关键词： maize;male sterile;transcriptome profiling

期刊名称：PLANT BREEDING （ 影响因子：1.832； 五年影响因子：1.956 ）

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收录情况： SCI

摘要： Male sterility plays an important role in the hybrid seed production. Elucidation of the mechanism of male sterility will provide useful information for the usage of male sterility. In this study, we performed detailed phenotypic analysis of ms2 mutant, and the results showed that ms2 anthers are defects in synthesis and transportation of lipophilic molecules. To investigate the defects of transcriptome of ms2 anthers, 1.5, 2.5 and 3.5mm anthers were sampled, respectively. Among the 23037 expressed transcripts at 1.5mm stage, only 15 genes were differentially expressed between fertile siblings and ms2 mutant. Compared to the fewer detected differentially expressed genes (DEGs) at 1.5mm stage, 950 DEGs and 2212 DEGs between the fertile siblings and ms2 anthers were detected at 2.5mm and 3.5mm stages. These differentially expressed genes (DEGs) were mainly enriched in the secondary metabolism and lipid metabolism pathways. A series of genes related to the long-chain fatty acids metabolism process were changed in ms2 mutant compared with the fertile siblings. The results in this study provide useful information on the mechanism of male sterility in ms2 mutant.

分类号： S3

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