A metagenomic insight into the microbiomes of geothermal springs in the Subantarctic Kerguelen Islands
Abstract The Kerguelen Islands, located in the southern part of the Indian Ocean, are very isolated geographically. The microbial diversity and communities present on the island, especially associated to geothermal springs, have never been analyzed with high-throughput sequencing methods. In this ar...
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ftdoajarticles:oai:doaj.org/article:6250ca6f7f004d3da17d1d514786d351 2023-05-15T17:01:59+02:00 A metagenomic insight into the microbiomes of geothermal springs in the Subantarctic Kerguelen Islands Maxime Allioux Stéven Yvenou Alexander Merkel Marc Cozannet Johanne Aubé Jolann Pommellec Marc Le Romancer Véronique Lavastre Damien Guillaume Karine Alain 2022-12-01T00:00:00Z https://doi.org/10.1038/s41598-022-26299-4 https://doaj.org/article/6250ca6f7f004d3da17d1d514786d351 EN eng Nature Portfolio https://doi.org/10.1038/s41598-022-26299-4 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-022-26299-4 2045-2322 https://doaj.org/article/6250ca6f7f004d3da17d1d514786d351 Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022) Medicine R Science Q article 2022 ftdoajarticles https://doi.org/10.1038/s41598-022-26299-4 2022-12-30T19:28:11Z Abstract The Kerguelen Islands, located in the southern part of the Indian Ocean, are very isolated geographically. The microbial diversity and communities present on the island, especially associated to geothermal springs, have never been analyzed with high-throughput sequencing methods. In this article, we performed the first metagenomics analysis of microorganisms present in Kerguelen hot springs. From four hot springs, we assembled metagenomes and recovered 42 metagenome-assembled genomes, mostly associated with new putative taxa based on phylogenomic analyses and overall genome relatedness indices. The 42 MAGs were studied in detail and showed putative affiliations to 13 new genomic species and 6 new genera of Bacteria or Archaea according to GTDB. Functional potential of MAGs suggests the presence of thermophiles and hyperthermophiles, as well as heterotrophs and primary producers possibly involved in the sulfur cycle, notably in the oxidation of sulfur compounds. This paper focused on only four of the dozens of hot springs in the Kerguelen Islands and should be considered as a preliminary study of the microorganisms inhabiting the hot springs of these isolated islands. These results show that more efforts should be made towards characterization of Kerguelen Islands ecosystems, as they represent a reservoir of unknown microbial lineages. Article in Journal/Newspaper Kerguelen Islands Directory of Open Access Journals: DOAJ Articles Kerguelen Kerguelen Islands Indian Scientific Reports 12 1 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Medicine R Science Q |
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Medicine R Science Q Maxime Allioux Stéven Yvenou Alexander Merkel Marc Cozannet Johanne Aubé Jolann Pommellec Marc Le Romancer Véronique Lavastre Damien Guillaume Karine Alain A metagenomic insight into the microbiomes of geothermal springs in the Subantarctic Kerguelen Islands |
topic_facet |
Medicine R Science Q |
description |
Abstract The Kerguelen Islands, located in the southern part of the Indian Ocean, are very isolated geographically. The microbial diversity and communities present on the island, especially associated to geothermal springs, have never been analyzed with high-throughput sequencing methods. In this article, we performed the first metagenomics analysis of microorganisms present in Kerguelen hot springs. From four hot springs, we assembled metagenomes and recovered 42 metagenome-assembled genomes, mostly associated with new putative taxa based on phylogenomic analyses and overall genome relatedness indices. The 42 MAGs were studied in detail and showed putative affiliations to 13 new genomic species and 6 new genera of Bacteria or Archaea according to GTDB. Functional potential of MAGs suggests the presence of thermophiles and hyperthermophiles, as well as heterotrophs and primary producers possibly involved in the sulfur cycle, notably in the oxidation of sulfur compounds. This paper focused on only four of the dozens of hot springs in the Kerguelen Islands and should be considered as a preliminary study of the microorganisms inhabiting the hot springs of these isolated islands. These results show that more efforts should be made towards characterization of Kerguelen Islands ecosystems, as they represent a reservoir of unknown microbial lineages. |
format |
Article in Journal/Newspaper |
author |
Maxime Allioux Stéven Yvenou Alexander Merkel Marc Cozannet Johanne Aubé Jolann Pommellec Marc Le Romancer Véronique Lavastre Damien Guillaume Karine Alain |
author_facet |
Maxime Allioux Stéven Yvenou Alexander Merkel Marc Cozannet Johanne Aubé Jolann Pommellec Marc Le Romancer Véronique Lavastre Damien Guillaume Karine Alain |
author_sort |
Maxime Allioux |
title |
A metagenomic insight into the microbiomes of geothermal springs in the Subantarctic Kerguelen Islands |
title_short |
A metagenomic insight into the microbiomes of geothermal springs in the Subantarctic Kerguelen Islands |
title_full |
A metagenomic insight into the microbiomes of geothermal springs in the Subantarctic Kerguelen Islands |
title_fullStr |
A metagenomic insight into the microbiomes of geothermal springs in the Subantarctic Kerguelen Islands |
title_full_unstemmed |
A metagenomic insight into the microbiomes of geothermal springs in the Subantarctic Kerguelen Islands |
title_sort |
metagenomic insight into the microbiomes of geothermal springs in the subantarctic kerguelen islands |
publisher |
Nature Portfolio |
publishDate |
2022 |
url |
https://doi.org/10.1038/s41598-022-26299-4 https://doaj.org/article/6250ca6f7f004d3da17d1d514786d351 |
geographic |
Kerguelen Kerguelen Islands Indian |
geographic_facet |
Kerguelen Kerguelen Islands Indian |
genre |
Kerguelen Islands |
genre_facet |
Kerguelen Islands |
op_source |
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022) |
op_relation |
https://doi.org/10.1038/s41598-022-26299-4 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-022-26299-4 2045-2322 https://doaj.org/article/6250ca6f7f004d3da17d1d514786d351 |
op_doi |
https://doi.org/10.1038/s41598-022-26299-4 |
container_title |
Scientific Reports |
container_volume |
12 |
container_issue |
1 |
_version_ |
1766055196387966976 |