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De-novo emergence o...
De-novo emergence of SINE retroposons during the early evolution of passerine birds
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- Suh, Alexander (författare)
- Uppsala universitet,Evolutionsbiologi,University of Münster, Institute of Experimental Pathology (ZMBE)
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- Bachg, Sandra (författare)
- University of Münster, Institute of Experimental Pathology (ZMBE)
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- Donnellan, Stephen (författare)
- South Australian Museum, Adelaide; The University of Adelaide, School of Biological Sciences
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- Joseph, Leo (författare)
- National Research Collections Australia, CSIRO, Australian National Wildlife Collection
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- Brosius, Jürgen (författare)
- University of Münster, Institute of Experimental Pathology (ZMBE); Brandenburg Medical School (MHB)
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- Kriegs, Jan Ole (författare)
- University of Münster, Institute of Experimental Pathology (ZMBE); Westfälisches Landesmuseum mit Planetarium, LWL-Museum für Naturkunde
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- Schmitz, Jürgen (författare)
- University of Münster, Institute of Experimental Pathology (ZMBE)
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(creator_code:org_t)
- 2017-12-14
- 2017
- Engelska.
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Ingår i: Mobile DNA. - : Springer Science and Business Media LLC. - 1759-8753. ; 8
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://mobilednajou...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- Background: Passeriformes ("perching birds" or passerines) make up more than half of all extant bird species. The genome of the zebra finch, a passerine model organism for vocal learning, was noted previously to contain thousands of short interspersed elements (SINEs), a group of retroposons that is abundant in mammalian genomes but considered largely inactive in avian genomes.Results: Here we resolve the deep phylogenetic relationships of passerines using presence/absence patterns of SINEs. The resultant retroposon-based phylogeny provides a powerful and independent corroboration of previous sequence-based analyses. Notably, SINE activity began in the common ancestor of Eupasseres (passerines excluding the New Zealand wrens Acanthisittidae) and ceased before the rapid diversification of oscine passerines (suborder Passeri - songbirds). Furthermore, we find evidence for very recent SINE activity within suboscine passerines (suborder Tyranni), following the emergence of a SINE via acquisition of a different tRNA head as we suggest through template switching.Conclusions: We propose that the early evolution of passerines was unusual among birds in that it was accompanied by de-novo emergence and activity of SINEs. Their genomic and transcriptomic impact warrants further study in the light of the massive diversification of passerines.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Nyckelord
- Transposon
- Retroposon
- SINE
- Birds
- Passeriformes
- Phylogenomics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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