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dc.contributor.authorGuillory, WX
dc.contributor.authorOnyshchenko, A
dc.contributor.authorRuck, EC
dc.contributor.authorParks, M
dc.contributor.authorNakov, T
dc.contributor.authorWickett, NJ
dc.contributor.authorAlverson, AJ
dc.date.accessioned2019-06-19T13:09:57Z
dc.date.available2019-06-19T13:09:57Z
dc.date.issued2018
dc.identifier.issn1759-6653
dc.identifier.doi10.1093/gbe/evy103
dc.identifier.urihttp://hdl.handle.net/10072/385515
dc.description.abstractWe sequenced mitochondrial genomes from five diverse diatoms (Toxarium undulatum, Psammoneis japonica, Eunotia naegelii, Cylindrotheca closterium, and Nitzschia sp.), chosen to fill important phylogenetic gaps and help us characterize broadscale patterns of mitochondrial genome evolution in diatoms. Although gene content was strongly conserved, intron content varied widely across species. The vast majority of introns were of group II type and were located in the cox1 or rnl genes. Although recurrent intron loss appears to be the principal underlying cause of the sporadic distributions of mitochondrial introns across diatoms, phylogenetic analyses showed that intron distributions superficially consistent with a recurrent-loss model were sometimes more complicated, implicating horizontal transfer as a likely mechanism of intron acquisition as well. It was not clear, however, whether diatoms were the donors or recipients of horizontally transferred introns, highlighting a general challenge in resolving the evolutionary histories of many diatom mitochondrial introns. Although some of these histories may become clearer as more genomes are sampled, high rates of intron loss suggest that the origins of many diatom mitochondrial introns are likely to remain unclear.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherOxford University Press
dc.relation.ispartofpagefrom1504
dc.relation.ispartofpageto1515
dc.relation.ispartofissue6
dc.relation.ispartofjournalGenome Biology and Evolution
dc.relation.ispartofvolume10
dc.subject.fieldofresearchBiochemistry and cell biology
dc.subject.fieldofresearchEvolutionary biology
dc.subject.fieldofresearchGenetics
dc.subject.fieldofresearchcode3101
dc.subject.fieldofresearchcode3104
dc.subject.fieldofresearchcode3105
dc.titleRecurrent loss, horizontal transfer, and the obscure origins of mitochondrial introns in diatoms (Bacillariophyta)
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dcterms.licensehttp://creativecommons.org/licenses/by-nc/4.0/
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© The Author(s) 2018. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
gro.hasfulltextFull Text
gro.griffith.authorParks, Matthew


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