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Rice melatonin deficiency causes premature leaf senescence via DNA methylation regulation
- Source :
- Crop Journal, Vol 12, Iss 3, Pp 721-731 (2024)
- Publication Year :
- 2024
- Publisher :
- KeAi Communications Co., Ltd., 2024.
-
Abstract
- In a study of DNA methylation changes in melatonin-deficient rice mutants, mutant plants showed premature leaf senescence during grain-filling and reduced grain yield. Melatonin deficiency led to transcriptional reprogramming, especially of genes involved in chlorophyll and carbon metabolism, redox regulation, and transcriptional regulation, during dark-induced leaf senescence. Hypomethylation of mCG and mCHG in the melatonin-deficient rice mutants was associated with the expression change of both protein-coding genes and transposable element-related genes. Changes in gene expression and DNA methylation in the melatonin-deficient mutants were compensated by exogenous application of melatonin. A decreased S-adenosyl-L-methionine level may have contributed to the DNA methylation variations in rice mutants of melatonin deficiency under dark conditions.
Details
- Language :
- English
- ISSN :
- 22145141
- Volume :
- 12
- Issue :
- 3
- Database :
- Directory of Open Access Journals
- Journal :
- Crop Journal
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.3fa6a2d18c4d49b98324c3745633f73f
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.cj.2024.04.004