FN Archimer Export Format PT J TI A metagenomic insight into the microbiomes of geothermal springs in the Subantarctic Kerguelen Islands BT AF Allioux, Maxime Yvenou, Steven Merkel, Alexander Cozannet, Marc Aubé, Johanne Pommellec, Jolann Le Romancer, Marc Lavastre, Véronique Guillaume, Damien Alain, Karine AS 1:5;2:5;3:2;4:5;5:1;6:5;7:3;8:4;9:4;10:6; FF 1:;2:;3:;4:;5:PDG-REM-BEEP-LMEE;6:;7:;8:;9:;10:; C1 Univ Brest, CNRS, IFREMER, IRP 1211 MicrobSea, Unité Biologie et Ecologie des Ecosystèmes Marins Profonds BEEP, IUEM, Rue Dumont d’Urville, 29280, Plouzané, France Research Center of Biotechnology of the Russian Academy of Sciences, Winogradsky Institute of Microbiology, Moscow, Russia UBO, UFR Sciences et Techniques, UR 7462, Laboratoire Géoarchitecture, Territoires, Urbanisation, Biodiversité, Environnement, Rennes, France UJM, CNRS, LGL-TPE UMR5276, 42023, Saint Etienne, France Univ Brest, CNRS, IFREMER, IRP 1211 MicrobSea, Unité Biologie et Ecologie des Ecosystèmes Marins Profonds BEEP, IUEM, Rue Dumont d’Urville, 29280, Plouzané, France Univ Brest, CNRS, IFREMER, IRP 1211 MicrobSea, Unité Biologie et Ecologie des Ecosystèmes Marins Profonds BEEP, IUEM, Rue Dumont d’Urville, 29280, Plouzané, France C2 IFREMER, FRANCE RUSSIAN ACAD SCI, RUSSIA UBO, FRANCE CNRS, FRANCE UBO, FRANCE CNRS, FRANCE SI BREST SE PDG-REM-BEEP-LMEE UM BEEP-LM2E IN WOS Ifremer UMR WOS Cotutelle UMR DOAJ copubli-france copubli-univ-france copubli-int-hors-europe IF 4.6 TC 2 UR https://archimer.ifremer.fr/doc/00813/92516/98769.pdf https://archimer.ifremer.fr/doc/00813/92516/98770.docx LA English DT Article AB 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. PY 2022 PD DEC SO Scientific Reports SN 2045-2322 PU Springer Science and Business Media LLC VL 12 IS 1 UT 000929925400001 DI 10.1038/s41598-022-26299-4 ID 92516 ER EF