Poles apart: Arctic and Antarctic Octadecabacter strains share high genome plasticity and a new type of xanthorhodopsin.
The genus Octadecabacter is a member of the ubiquitous marine Roseobacter clade. The two described species of this genus, Octadecabacter arcticus and Octadecabacter antarcticus, are psychrophilic and display a bipolar distribution. Here we provide the manually annotated and finished genome sequences...
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ftdoajarticles:oai:doaj.org/article:dd228d3157134434805c39143f08d304 2023-05-15T13:52:50+02:00 Poles apart: Arctic and Antarctic Octadecabacter strains share high genome plasticity and a new type of xanthorhodopsin. John Vollmers Sonja Voget Sascha Dietrich Kathleen Gollnow Maike Smits Katja Meyer Thorsten Brinkhoff Meinhard Simon Rolf Daniel 2013-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0063422 https://doaj.org/article/dd228d3157134434805c39143f08d304 EN eng Public Library of Science (PLoS) https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23671678/pdf/?tool=EBI https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0063422 https://doaj.org/article/dd228d3157134434805c39143f08d304 PLoS ONE, Vol 8, Iss 5, p e63422 (2013) Medicine R Science Q article 2013 ftdoajarticles https://doi.org/10.1371/journal.pone.0063422 2022-12-31T05:07:05Z The genus Octadecabacter is a member of the ubiquitous marine Roseobacter clade. The two described species of this genus, Octadecabacter arcticus and Octadecabacter antarcticus, are psychrophilic and display a bipolar distribution. Here we provide the manually annotated and finished genome sequences of the type strains O. arcticus 238 and O. antarcticus 307, isolated from sea ice of the Arctic and Antarctic, respectively. Both genomes exhibit a high genome plasticity caused by an unusually high density and diversity of transposable elements. This could explain the discrepancy between the low genome synteny and high 16S rRNA gene sequence similarity between both strains. Numerous characteristic features were identified in the Octadecabacter genomes, which show indications of horizontal gene transfer and may represent specific adaptations to the habitats of the strains. These include a gene cluster encoding the synthesis and degradation of cyanophycin in O. arcticus 238, which is absent in O. antarcticus 307 and unique among the Roseobacter clade. Furthermore, genes representing a new subgroup of xanthorhodopsins as an adaptation to icy environments are present in both Octadecabacter strains. This new xanthorhodopsin subgroup differs from the previously characterized xanthorhodopsins of Salinibacter ruber and Gloeobacter violaceus in phylogeny, biogeography and the potential to bind 4-keto-carotenoids. Biochemical characterization of the Octadecabacter xanthorhodopsins revealed that they function as light-driven proton pumps. Article in Journal/Newspaper Antarc* Antarctic antarcticus Arctic Sea ice Directory of Open Access Journals: DOAJ Articles Antarctic Arctic PLoS ONE 8 5 e63422 |
institution |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
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language |
English |
topic |
Medicine R Science Q |
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Medicine R Science Q John Vollmers Sonja Voget Sascha Dietrich Kathleen Gollnow Maike Smits Katja Meyer Thorsten Brinkhoff Meinhard Simon Rolf Daniel Poles apart: Arctic and Antarctic Octadecabacter strains share high genome plasticity and a new type of xanthorhodopsin. |
topic_facet |
Medicine R Science Q |
description |
The genus Octadecabacter is a member of the ubiquitous marine Roseobacter clade. The two described species of this genus, Octadecabacter arcticus and Octadecabacter antarcticus, are psychrophilic and display a bipolar distribution. Here we provide the manually annotated and finished genome sequences of the type strains O. arcticus 238 and O. antarcticus 307, isolated from sea ice of the Arctic and Antarctic, respectively. Both genomes exhibit a high genome plasticity caused by an unusually high density and diversity of transposable elements. This could explain the discrepancy between the low genome synteny and high 16S rRNA gene sequence similarity between both strains. Numerous characteristic features were identified in the Octadecabacter genomes, which show indications of horizontal gene transfer and may represent specific adaptations to the habitats of the strains. These include a gene cluster encoding the synthesis and degradation of cyanophycin in O. arcticus 238, which is absent in O. antarcticus 307 and unique among the Roseobacter clade. Furthermore, genes representing a new subgroup of xanthorhodopsins as an adaptation to icy environments are present in both Octadecabacter strains. This new xanthorhodopsin subgroup differs from the previously characterized xanthorhodopsins of Salinibacter ruber and Gloeobacter violaceus in phylogeny, biogeography and the potential to bind 4-keto-carotenoids. Biochemical characterization of the Octadecabacter xanthorhodopsins revealed that they function as light-driven proton pumps. |
format |
Article in Journal/Newspaper |
author |
John Vollmers Sonja Voget Sascha Dietrich Kathleen Gollnow Maike Smits Katja Meyer Thorsten Brinkhoff Meinhard Simon Rolf Daniel |
author_facet |
John Vollmers Sonja Voget Sascha Dietrich Kathleen Gollnow Maike Smits Katja Meyer Thorsten Brinkhoff Meinhard Simon Rolf Daniel |
author_sort |
John Vollmers |
title |
Poles apart: Arctic and Antarctic Octadecabacter strains share high genome plasticity and a new type of xanthorhodopsin. |
title_short |
Poles apart: Arctic and Antarctic Octadecabacter strains share high genome plasticity and a new type of xanthorhodopsin. |
title_full |
Poles apart: Arctic and Antarctic Octadecabacter strains share high genome plasticity and a new type of xanthorhodopsin. |
title_fullStr |
Poles apart: Arctic and Antarctic Octadecabacter strains share high genome plasticity and a new type of xanthorhodopsin. |
title_full_unstemmed |
Poles apart: Arctic and Antarctic Octadecabacter strains share high genome plasticity and a new type of xanthorhodopsin. |
title_sort |
poles apart: arctic and antarctic octadecabacter strains share high genome plasticity and a new type of xanthorhodopsin. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2013 |
url |
https://doi.org/10.1371/journal.pone.0063422 https://doaj.org/article/dd228d3157134434805c39143f08d304 |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic antarcticus Arctic Sea ice |
genre_facet |
Antarc* Antarctic antarcticus Arctic Sea ice |
op_source |
PLoS ONE, Vol 8, Iss 5, p e63422 (2013) |
op_relation |
https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23671678/pdf/?tool=EBI https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0063422 https://doaj.org/article/dd228d3157134434805c39143f08d304 |
op_doi |
https://doi.org/10.1371/journal.pone.0063422 |
container_title |
PLoS ONE |
container_volume |
8 |
container_issue |
5 |
container_start_page |
e63422 |
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1766257594948648960 |