Identification of Candidate Genes for Drought Resistance during Soybean Seed Development

Xiaofei Tang, Yongguo Xue, Dan Cao, Xiaoyan Luan, Kezhen Zhao, Qi Liu, Yang Ren, Zifei Zhu, Yong Li () and Xinlei Liu ()
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Xiaofei Tang: Soybean Research Institute, Heilongjiang Academy of Agricultural Science, Harbin 150086, China
Yongguo Xue: Soybean Research Institute, Heilongjiang Academy of Agricultural Science, Harbin 150086, China
Dan Cao: Soybean Research Institute, Heilongjiang Academy of Agricultural Science, Harbin 150086, China
Xiaoyan Luan: Soybean Research Institute, Heilongjiang Academy of Agricultural Science, Harbin 150086, China
Kezhen Zhao: Soybean Research Institute, Heilongjiang Academy of Agricultural Science, Harbin 150086, China
Qi Liu: Soybean Research Institute, Heilongjiang Academy of Agricultural Science, Harbin 150086, China
Yang Ren: Soybean Research Institute, Heilongjiang Academy of Agricultural Science, Harbin 150086, China
Zifei Zhu: Soybean Research Institute, Heilongjiang Academy of Agricultural Science, Harbin 150086, China
Yong Li: College of Life Sciences, Northeast Agricultural University, Harbin 150030, China
Xinlei Liu: Soybean Research Institute, Heilongjiang Academy of Agricultural Science, Harbin 150086, China

Agriculture, 2023, vol. 13, issue 5, 1-13

Abstract: Drought is the main abiotic stress limiting soybean production worldwide and seriously limits the reproductive growth of soybean. To elucidate the molecular mechanisms of drought stress response in soybean seed developmental stages, transcriptome analysis was performed on five seed developmental stages under drought stress and control conditions. Thousands of genes were found to change in expression level under drought stress, GO and KEGG enrichment analysis showed that differentially expressed genes (DEGs) were involved in drought resistance at every stage or tissue, but there were very few DEGs at the primary stage of seed development, which indicated that the seeds at the primary developmental stage were influenced little by drought stress. There was no shared DEG among all five stages or tissues, this indicated that they have different mechanisms to resist drought stress. Furthermore, we investigated DEGs associated with drought response at different stages to identify candidate regulators of drought stress response during soybean seed development. These genes are associated with metabolic and regulatory networks, among others. Taken together, the results will expand our understanding of the adaptation of soybean to drought stress and provide new insights into the molecular mechanisms of soybean drought tolerance development.

Keywords: soybean; seed development; drought stress; transcriptome; DEGs (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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