<i>AtMES1</i> positively regulates seed number per silique in <i>Arabidopsis thaliana</i> (L.) Heynh

Chang Jin-Hui; Pan Jian; Jiang Huan-Li; Lin Wen-Hui

doi:10.11913/PSJ.2095-0837.2021.50506

Plant Science Journal > 2021 > 39(5): 506-514. > DOI: 10.11913/PSJ.2095-0837.2021.50506 CSTR: 32231.14.PSJ.2095-0837.2021.50506

Chang Jin-Hui, Pan Jian, Jiang Huan-Li, Lin Wen-Hui. AtMES1 positively regulates seed number per silique in Arabidopsis thaliana (L.) Heynh[J]. Plant Science Journal, 2021, 39(5): 506-514. DOI: 10.11913/PSJ.2095-0837.2021.50506

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AtMES1 positively regulates seed number per silique in Arabidopsis thaliana (L.) Heynh

1. School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China;
2. School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China

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This work was supported by grants from the National Natural Science Foundation of China (31771591, 32070342) and Agri-X Interdisciplinary Fund of Shanghai Jiao Tong University (Agri-X20200204).

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Received Date: March 08, 2021
Revised Date: May 13, 2021
Available Online: October 31, 2022
Published Date: October 27, 2021

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Abstract

Abstract

According to our previous genome-wide association analysis (GWAS) and prediction of gene expression, we identified AtMES1 as a potential gene that may participate in regulating seed number per silique (SNS). We identified the loss-of-function mutants of AtMES1 and analyzed their phenotypes. AtMES1 had significantly reduced SNS and seed density compared with the wild-type control. Transcriptomic analysis revealed that multiple important genes involved in hormone-related ovule initiation and development were down-regulated, suggesting that AtMES1 positively regulated SNS by modulating hormone signals. The ectopic expression of AtMES1 by placenta-specific promoter STK led to shorter siliques but significantly increased seed density, further demonstrating that AtMES1 positively regulated ovule initiation and seed density. In conclusion, our study suggests that AtMES1 is a new positive regulator of Arabidopsis ovule initiation and SNS.
- AtMES1,
- Seed number per silique (SNS),
- Seed density,
- Transcriptome sequencing

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References (43)

References

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