Cargando…
Updating algal evolutionary relationships through plastid genome sequencing: did alveolate plastids emerge through endosymbiosis of an ochrophyte?
Algae with secondary plastids of a red algal origin, such as ochrophytes (photosynthetic stramenopiles), are diverse and ecologically important, yet their evolutionary history remains controversial. We sequenced plastid genomes of two ochrophytes, Ochromonas sp. CCMP1393 (Chrysophyceae) and Trachydi...
Autores principales: | , , , , , , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4603697/ https://www.ncbi.nlm.nih.gov/pubmed/26017773 http://dx.doi.org/10.1038/srep10134 |
_version_ | 1782394938818822144 |
---|---|
author | Ševčíková, Tereza Horák, Aleš Klimeš, Vladimír Zbránková, Veronika Demir-Hilton, Elif Sudek, Sebastian Jenkins, Jerry Schmutz, Jeremy Přibyl, Pavel Fousek, Jan Vlček, Čestmír Lang, B. Franz Oborník, Miroslav Worden, Alexandra Z. Eliáš, Marek |
author_facet | Ševčíková, Tereza Horák, Aleš Klimeš, Vladimír Zbránková, Veronika Demir-Hilton, Elif Sudek, Sebastian Jenkins, Jerry Schmutz, Jeremy Přibyl, Pavel Fousek, Jan Vlček, Čestmír Lang, B. Franz Oborník, Miroslav Worden, Alexandra Z. Eliáš, Marek |
author_sort | Ševčíková, Tereza |
collection | PubMed |
description | Algae with secondary plastids of a red algal origin, such as ochrophytes (photosynthetic stramenopiles), are diverse and ecologically important, yet their evolutionary history remains controversial. We sequenced plastid genomes of two ochrophytes, Ochromonas sp. CCMP1393 (Chrysophyceae) and Trachydiscus minutus (Eustigmatophyceae). A shared split of the clpC gene as well as phylogenomic analyses of concatenated protein sequences demonstrated that chrysophytes and eustigmatophytes form a clade, the Limnista, exhibiting an unexpectedly elevated rate of plastid gene evolution. Our analyses also indicate that the root of the ochrophyte phylogeny falls between the recently redefined Khakista and Phaeista assemblages. Taking advantage of the expanded sampling of plastid genome sequences, we revisited the phylogenetic position of the plastid of Vitrella brassicaformis, a member of Alveolata with the least derived plastid genome known for the whole group. The results varied depending on the dataset and phylogenetic method employed, but suggested that the Vitrella plastids emerged from a deep ochrophyte lineage rather than being derived vertically from a hypothetical plastid-bearing common ancestor of alveolates and stramenopiles. Thus, we hypothesize that the plastid in Vitrella, and potentially in other alveolates, may have been acquired by an endosymbiosis of an early ochrophyte. |
format | Online Article Text |
id | pubmed-4603697 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-46036972015-10-23 Updating algal evolutionary relationships through plastid genome sequencing: did alveolate plastids emerge through endosymbiosis of an ochrophyte? Ševčíková, Tereza Horák, Aleš Klimeš, Vladimír Zbránková, Veronika Demir-Hilton, Elif Sudek, Sebastian Jenkins, Jerry Schmutz, Jeremy Přibyl, Pavel Fousek, Jan Vlček, Čestmír Lang, B. Franz Oborník, Miroslav Worden, Alexandra Z. Eliáš, Marek Sci Rep Article Algae with secondary plastids of a red algal origin, such as ochrophytes (photosynthetic stramenopiles), are diverse and ecologically important, yet their evolutionary history remains controversial. We sequenced plastid genomes of two ochrophytes, Ochromonas sp. CCMP1393 (Chrysophyceae) and Trachydiscus minutus (Eustigmatophyceae). A shared split of the clpC gene as well as phylogenomic analyses of concatenated protein sequences demonstrated that chrysophytes and eustigmatophytes form a clade, the Limnista, exhibiting an unexpectedly elevated rate of plastid gene evolution. Our analyses also indicate that the root of the ochrophyte phylogeny falls between the recently redefined Khakista and Phaeista assemblages. Taking advantage of the expanded sampling of plastid genome sequences, we revisited the phylogenetic position of the plastid of Vitrella brassicaformis, a member of Alveolata with the least derived plastid genome known for the whole group. The results varied depending on the dataset and phylogenetic method employed, but suggested that the Vitrella plastids emerged from a deep ochrophyte lineage rather than being derived vertically from a hypothetical plastid-bearing common ancestor of alveolates and stramenopiles. Thus, we hypothesize that the plastid in Vitrella, and potentially in other alveolates, may have been acquired by an endosymbiosis of an early ochrophyte. Nature Publishing Group 2015-05-28 /pmc/articles/PMC4603697/ /pubmed/26017773 http://dx.doi.org/10.1038/srep10134 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Ševčíková, Tereza Horák, Aleš Klimeš, Vladimír Zbránková, Veronika Demir-Hilton, Elif Sudek, Sebastian Jenkins, Jerry Schmutz, Jeremy Přibyl, Pavel Fousek, Jan Vlček, Čestmír Lang, B. Franz Oborník, Miroslav Worden, Alexandra Z. Eliáš, Marek Updating algal evolutionary relationships through plastid genome sequencing: did alveolate plastids emerge through endosymbiosis of an ochrophyte? |
title | Updating algal evolutionary relationships through plastid genome sequencing: did alveolate plastids emerge through endosymbiosis of an ochrophyte? |
title_full | Updating algal evolutionary relationships through plastid genome sequencing: did alveolate plastids emerge through endosymbiosis of an ochrophyte? |
title_fullStr | Updating algal evolutionary relationships through plastid genome sequencing: did alveolate plastids emerge through endosymbiosis of an ochrophyte? |
title_full_unstemmed | Updating algal evolutionary relationships through plastid genome sequencing: did alveolate plastids emerge through endosymbiosis of an ochrophyte? |
title_short | Updating algal evolutionary relationships through plastid genome sequencing: did alveolate plastids emerge through endosymbiosis of an ochrophyte? |
title_sort | updating algal evolutionary relationships through plastid genome sequencing: did alveolate plastids emerge through endosymbiosis of an ochrophyte? |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4603697/ https://www.ncbi.nlm.nih.gov/pubmed/26017773 http://dx.doi.org/10.1038/srep10134 |
work_keys_str_mv | AT sevcikovatereza updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT horakales updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT klimesvladimir updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT zbrankovaveronika updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT demirhiltonelif updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT sudeksebastian updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT jenkinsjerry updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT schmutzjeremy updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT pribylpavel updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT fousekjan updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT vlcekcestmir updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT langbfranz updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT obornikmiroslav updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT wordenalexandraz updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte AT eliasmarek updatingalgalevolutionaryrelationshipsthroughplastidgenomesequencingdidalveolateplastidsemergethroughendosymbiosisofanochrophyte |