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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1111/nph.15209
|2 doi
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|a pubmed25n0946.xml
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|a (DE-627)NLM284094420
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|a (NLM)29762876
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Wang, Yushuai
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Constant conflict between Gypsy LTR retrotransposons and CHH methylation within a stress-adapted mangrove genome
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|c 2018
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 27.09.2019
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a GENBANK: PRJEB8423, PRJNA432798
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|a Citation Status MEDLINE
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|a © 2018 The Authors. New Phytologist © 2018 New Phytologist Trust.
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|a The evolutionary dynamics of the conflict between transposable elements (TEs) and their host genome remain elusive. This conflict will be intense in stress-adapted plants as stress can often reactivate TEs. Mangroves reduce TE load convergently in their adaptation to intertidal environments and thus provide a unique opportunity to address the host-TE conflict and its interaction with stress adaptation. Using the mangrove Rhizophora apiculata as a model, we investigated methylation and short interfering RNA (siRNA) targeting patterns in relation to the abundance and age of long terminal repeat (LTR) retrotransposons. We also examined the distance of LTR retrotransposons to genes, the impact on neighboring gene expression and population frequencies. We found differential accumulation amongst classes of LTR retrotransposons despite high overall methylation levels. This can be attributed to 24-nucleotide siRNA-mediated CHH methylation preferentially targeting Gypsy elements, particularly in their LTR regions. Old Gypsy elements possess unusually abundant siRNAs which show cross-mapping to young copies. Gypsy elements appear to be closer to genes and under stronger purifying selection than other classes. Our results suggest a continuous host-TE battle masked by the TE load reduction in R. apiculata. This conflict may enable mangroves, such as R. apiculata, to maintain genetic diversity and thus evolutionary potential during stress adaptation
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a CHH methylation
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| 650 |
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|a host-transposable element (TE) conflict
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| 650 |
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4 |
|a long terminal repeat (LTR) retrotransposon
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| 650 |
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4 |
|a mangrove
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| 650 |
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|a small RNA
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| 650 |
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|a RNA, Small Interfering
|2 NLM
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| 650 |
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|a Retroelements
|2 NLM
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| 700 |
1 |
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|a Liang, Weiqi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tang, Tian
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 220(2018), 3 vom: 15. Nov., Seite 922-935
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnas
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| 773 |
1 |
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|g volume:220
|g year:2018
|g number:3
|g day:15
|g month:11
|g pages:922-935
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|u http://dx.doi.org/10.1111/nph.15209
|3 Volltext
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|h 922-935
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