Huang, L and Umer, M J and Liu, H and Li, H and Wang, R and Yu, Q and Li, S and Varshney, R K and Pandey, M K and Hong, Y and Lu, Q and Chen, X (2025) Transcriptomic insights into the synergistic effects of darkness and mechanical stimulation on peanut pod development. BMC Plant Biology (TSI), 25. pp. 1-18. ISSN 1471-2229
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Abstract
Background: Peanuts are important oil crop with an atypical fruitification pattern. Darkness and mechanical stimulation are required to facilitate normal pod development. Despite some progress in understanding peanut pod development and its response to external environmental stimulation, numerous unresolved questions and knowledge gaps remain regarding the role of darkness and mechanical stimulation in this complex process. Results: In this study, we investigated the impacts of dark and mechanical stimulation on peanut pod development via transcriptome. A total of 55,087 genes, along with a series of DEGs and pathways, were identified among different treatment groups (CK, TB, TML, and TMB) that play crucial roles and offer a novel perspective on the role of photosynthesis during peanut pod development. Moreover, by utilizing weighted gene coexpression network analysis (WGCNA) we identified several hub genes (e.g., IAA9 (Ahy_B07g086610), BSK5 (Ahy_B03g068305), GRF7 (Ahy_B10g103808), and PER17 (Ahy_B10g105104)) and key pathways (e.g., plant hormonal and signal transduction pathway, and lignin biosynthesis pathway) that might be true candidates for peanut pod development. Further, the expression patterns of key candidates were validated via qRT-PCR during different pod development stages. Conclusions: Overall, this study provides a comprehensive characterization of the mechanisms underlying peanut pod development in response to darkness and mechanical stimulation. These findings lay a foundation for exploring optimized growth conditions for peanut cultivation, while the identified key genes may serve as potential targets in future peanut breeding programs.
| Item Type: | Article |
|---|---|
| Divisions: | Global Research Program - Accelerated Crop Improvement |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Peanut, Mechanical stimulation, Environment, Pod development, Gene modules |
| Subjects: | Mandate crops > Groundnut Others > Genetics and Genomics |
| Depositing User: | Mr Nagaraju T |
| Date Deposited: | 24 Sep 2025 09:37 |
| Last Modified: | 24 Sep 2025 09:37 |
| URI: | http://oar.icrisat.org/id/eprint/13342 |
| Official URL: | https://link.springer.com/article/10.1186/s12870-0... |
| Projects: | Guangdong Science and Technology Plan Project, Agricultural Competitive Industry Discipline Team Building Project, Special Fund for Scientific Innovation Strategy-Construction |
| Funders: | The National Natural Science Foundation of China, The National Key R&D Program of China, The Open Competition Program of Top Ten Critical Priorities of Agricultural Science and Technology Innovation for the 14th Five-Year Plan in Guangdong Province, Guangdong Provincial Key Research and Development Program-Modern Seed Industry, China Agriculture Research System of MOF and MARA, Guangdong Basic and Applied Basic Research Foundation, Technology Special Fund of Guangdong Province Agriculture and Rural Affairs Department, Special Funds for the Revitalization of Agriculture through Seed Industry under the Provincial Rural Revitalization Strategy, Guangzhou Basic and Applied Basic Research Foundation, Guangdong Academy of Agricultural Sciences, High- Level Academy of Agriculture Science |
| Acknowledgement: | We want to thank the Crops Research Institute, Guangdong Academy of Agricultural Sciences. |
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