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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1111/nph.14784
|2 doi
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|a pubmed25n0920.xml
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|e rakwb
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|a eng
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1 |
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|a Lyu, Haomin
|e verfasserin
|4 aut
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|a Convergent adaptive evolution in marginal environments
|b unloading transposable elements as a common strategy among mangrove genomes
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|c 2018
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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
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|a Date Completed 27.07.2018
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a CommentIn: New Phytol. 2018 Jan;217(1):5-7. doi: 10.1111/nph.14906. - PMID 29193222
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|a Citation Status MEDLINE
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|a © 2017 The Authors. New Phytologist © 2017 New Phytologist Trust.
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|a Several clades of mangrove trees independently invade the interface between land and sea at the margin of woody plant distribution. As phenotypic convergence among mangroves is common, the possibility of convergent adaptation in their genomes is quite intriguing. To study this molecular convergence, we sequenced multiple mangrove genomes. In this study, we focused on the evolution of transposable elements (TEs) in relation to the genome size evolution. TEs, generally considered genomic parasites, are the most common components of woody plant genomes. Analyzing the long terminal repeat-retrotransposon (LTR-RT) type of TE, we estimated their death rates by counting solo-LTRs and truncated elements. We found that all lineages of mangroves massively and convergently reduce TE loads in comparison to their nonmangrove relatives; as a consequence, genome size reduction happens independently in all six mangrove lineages; TE load reduction in mangroves can be attributed to the paucity of young elements; the rarity of young LTR-RTs is a consequence of fewer births rather than access death. In conclusion, mangrove genomes employ a convergent strategy of TE load reduction by suppressing element origination in their independent adaptation to a new environment
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|a Journal Article
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|a adaptive evolution
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|a convergent evolution
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|a genomic parasite
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| 650 |
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|a mangrove
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|a marginal habitat
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| 650 |
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|a transposon
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| 650 |
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|a Retroelements
|2 NLM
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| 700 |
1 |
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|a He, Ziwen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Chung-I
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shi, Suhua
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1989
|g 217(2018), 1 vom: 01. Jan., Seite 428-438
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:217
|g year:2018
|g number:1
|g day:01
|g month:01
|g pages:428-438
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|u http://dx.doi.org/10.1111/nph.14784
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