Academic Journal
Reshaped DNA methylation cooperating with homoeolog‐divergent expression promotes improved root traits in synthesized tetraploid wheat
| العنوان: | Reshaped DNA methylation cooperating with homoeolog‐divergent expression promotes improved root traits in synthesized tetraploid wheat |
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| المؤلفون: | Miao, Lingfeng, Xu, Weiya, Liu, Yanhong, Huang, Xiangyi, Chen, Zhe, Wang, Huifang, Wang, Zihao, Chen, Yongming, Song, Qingxin, Zhang, Jing, Han, Fangpu, Peng, Huiru, Yao, Yingyin, Xin, Mingming, Hu, Zhaorong, Ni, Zhongfu, Sun, Qixin, Xing, Jiewen, Guo, Weilong |
| المساهمون: | National Natural Science Foundation of China |
| المصدر: | New Phytologist ; volume 242, issue 2, page 507-523 ; ISSN 0028-646X 1469-8137 |
| بيانات النشر: | Wiley |
| سنة النشر: | 2024 |
| المجموعة: | Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: | Summary Polyploidization is a major event driving plant evolution and domestication. However, how reshaped epigenetic modifications coordinate gene transcription to generate phenotypic variations during wheat polyploidization is currently elusive. Here, we profiled transcriptomes and DNA methylomes of two diploid wheat accessions (S l S l and AA) and their synthetic allotetraploid wheat line (S l S l AA), which displayed elongated root hair and improved root capability for nitrate uptake and assimilation after tetraploidization. Globally decreased DNA methylation levels with a reduced difference between subgenomes were observed in the roots of S l S l AA. DNA methylation changes in first exon showed strong connections with altered transcription during tetraploidization. Homoeolog‐specific transcription was associated with biased DNA methylation as shaped by homoeologous sequence variation. The hypomethylated promoters showed significantly enriched binding sites for MYB, which may affect gene transcription in response to root hair growth. Two master regulators in root hair elongation pathway, AlCPC and TuRSL4 , exhibited upregulated transcription levels accompanied by hypomethylation in promoter, which may contribute to the elongated root hair. The upregulated nitrate transporter genes, including NPFs and NRTs , also are significantly associated with hypomethylation, indicating an epigenetic‐incorporated regulation manner in improving nitrogen use efficiency. Collectively, these results provided new insights into epigenetic changes in response to crop polyploidization and underscored the importance of epigenetic regulation in improving crop traits. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1111/nph.19593 |
| الاتاحة: | http://dx.doi.org/10.1111/nph.19593 https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.19593 |
| Rights: | http://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: | edsbas.830E1EC6 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1111/nph.19593 |
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