Epigenetic and transcriptional responses underlying mangrove adaptation to UV-B.
In: IScience, Jg. 24 (2021-09-20), Heft 10, S. 103148
Online
academicJournal
Zugriff:
Tropical plants have adapted to strong solar ultraviolet (UV) radiation. Here we compare molecular responses of two tropical mangroves Avecennia marina and Rhizophora apiculata to high-dose UV-B. Whole-genome bisulfate sequencing indicates that high UV-B induced comparable hyper- or hypo-methylation in three sequence contexts (CG, CHG, and CHH, where H refers to A, T, or C) in A. marina but mainly CHG hypomethylation in R. apiculata . RNA and small RNA sequencing reveals UV-B induced relaxation of transposable element (TE) silencing together with up-regulation of TE-adjacent genes in R. apiculata but not in A. marina . Despite conserved upregulation of flavonoid biosynthesis and downregulation of photosynthesis genes caused by high UV-B, A. marina specifically upregulated ABC transporter and ubiquinone biosynthesis genes that are known to be protective against UV-B-induced damage. Our results point to divergent responses underlying plant UV-B adaptation at both the epigenetic and transcriptional level.
(© 2021 The Authors.)
Titel: |
Epigenetic and transcriptional responses underlying mangrove adaptation to UV-B.
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Autor/in / Beteiligte Person: | Wang, Y ; Huang, C ; Zeng, W ; Zhang, T ; Zhong, C ; Deng, S ; Tang, T |
Link: | |
Zeitschrift: | IScience, Jg. 24 (2021-09-20), Heft 10, S. 103148 |
Veröffentlichung: | [Cambridge, MA] : Cell Press, [2018]-, 2021 |
Medientyp: | academicJournal |
ISSN: | 2589-0042 (electronic) |
DOI: | 10.1016/j.isci.2021.103148 |
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