한빛사논문
- 조회198
Long-Hai Zou1*, Bailiang Zhu1*, Yaxin Chen1, Yaping Lu1, Muthusamy Ramkrishnan2, Chao Xu1, Xiaohong Zhou1, Yiqian Ding1, Jungnam Cho3 and Mingbing Zhou1
1State Key Laboratory of Subtropical Silviculture, Bamboo Industry Institute, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China;
2State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Bamboo Research Institute, Key Laboratory of National Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, College of Biology and the Environment, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China;
3Department of Biosciences, Durham University, Durham, DH1 3LE, UK
Authors for correspondence: Jungnam Cho, Mingbing Zhou
*The authors contributed equally to this work.
Abstract
Long terminal repeat retroelements (LTR-REs) have profound effects on DNA methylation and gene regulation. Despite the vast abundance of LTR-REs in the genome of Moso bamboo (Phyllostachys edulis), an industrial crop in underdeveloped countries, their precise implication of the LTR-RE mobility in stress response and development remains unknown.
We investigated the RNA and DNA products of LTR-REs in Moso bamboo under various developmental stages and stressful conditions. Surprisingly, our analyses identified thousands of active LTR-REs, particularly those located near genes involved in stress response and developmental regulation. These genes adjacent to active LTR-REs exhibited an increased expression under stress and are associated with reduced DNA methylation that is likely affected by the induced LTR-REs.
Moreover, the analyses of simultaneous mapping of insertions and DNA methylation showed that the LTR-REs effectively alter the epigenetic status of the genomic regions where they inserted, and concomitantly their transcriptional competence which might impact the stress resilience and growth of the host.
Our work unveils the unusually strong LTR-RE mobility in Moso bamboo and its close association with (epi)genetic changes, which supports the co-evolution of the parasitic DNAs and host genome in attaining stress tolerance and developmental robustness.
논문정보
- Research article
- 2024년 09월 (BRIC 등록일 2024-09-06)
- 국외 연구진
- 생명과학 > 식물학
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