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dc.contributor.authorJackson, C
dc.contributor.authorKnoll, AH
dc.contributor.authorChan, CX
dc.contributor.authorVerbruggen, H
dc.date.accessioned2020-12-18T03:58:00Z
dc.date.available2020-12-18T03:58:00Z
dc.date.issued2018-01-24
dc.identifierpii: 10.1038/s41598-017-18805-w
dc.identifier.citationJackson, C., Knoll, A. H., Chan, C. X. & Verbruggen, H. (2018). Plastid phylogenomics with broad taxon sampling further elucidates the distinct evolutionary origins and timing of secondary green plastids. SCIENTIFIC REPORTS, 8 (1), https://doi.org/10.1038/s41598-017-18805-w.
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/11343/255997
dc.description.abstractSecondary plastids derived from green algae occur in chlorarachniophytes, photosynthetic euglenophytes, and the dinoflagellate genus Lepidodinium. Recent advances in understanding the origin of these plastids have been made, but analyses suffer from relatively sparse taxon sampling within the green algal groups to which they are related. In this study we aim to derive new insights into the identity of the plastid donors, and when in geological time the independent endosymbiosis events occurred. We use newly sequenced green algal chloroplast genomes from carefully chosen lineages potentially related to chlorarachniophyte and Lepidodinium plastids, combined with recently published chloroplast genomes, to present taxon-rich phylogenetic analyses to further pinpoint plastid origins. We integrate phylogenies with fossil information and relaxed molecular clock analyses. Our results indicate that the chlorarachniophyte plastid may originate from a precusor of siphonous green algae or a closely related lineage, whereas the Lepidodinium plastid originated from a pedinophyte. The euglenophyte plastid putatively originated from a lineage of prasinophytes within the order Pyramimonadales. Our molecular clock analyses narrow in on the likely timing of the secondary endosymbiosis events, suggesting that the event leading to Lepidodinium likely occurred more recently than those leading to the chlorarachniophyte and photosynthetic euglenophyte lineages.
dc.languageEnglish
dc.publisherNATURE PUBLISHING GROUP
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.titlePlastid phylogenomics with broad taxon sampling further elucidates the distinct evolutionary origins and timing of secondary green plastids
dc.typeJournal Article
dc.identifier.doi10.1038/s41598-017-18805-w
melbourne.affiliation.departmentSchool of BioSciences
melbourne.source.titleScientific Reports
melbourne.source.volume8
melbourne.source.issue1
melbourne.identifier.arcFT110100585
melbourne.identifier.arcDP150100705
dc.rights.licenseCC BY
melbourne.elementsid1300461
melbourne.contributor.authorVerbruggen, Heroen
dc.identifier.eissn2045-2322
melbourne.identifier.fundernameidAustralian Research Council, FT110100585
melbourne.identifier.fundernameidAustralian Research Council, DP150100705
melbourne.accessrightsOpen Access


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