Artículo
Novel diversity of polar Cyanobacteria revealed by genome-resolved metagenomics
Autor/es | Pessi, Igor S.
Popin, Rafael V. Durieu, Benoit Lara, Yannick Tytgat, Bjorn Savaglia, Valentina Roncero Ramos, Beatriz Hultman, Jenni Verleyen, Elie Vyverman, Wim Wilmotte, Annick |
Departamento | Universidad de Sevilla. Departamento de Biología Vegetal y Ecología |
Fecha de publicación | 2023 |
Fecha de depósito | 2023-07-21 |
Publicado en |
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Resumen | Benthic microbial mats dominated by Cyanobacteria are important features of polar lakes. Although culture-independent studies have provided important insights into the diversity of polar Cyanobacteria, only a handful of ... Benthic microbial mats dominated by Cyanobacteria are important features of polar lakes. Although culture-independent studies have provided important insights into the diversity of polar Cyanobacteria, only a handful of genomes have been sequenced to date. Here, we applied a genome-resolved metagenomics approach to data obtained from Arctic, sub-Antarctic and Antarctic microbial mats. We recovered 37 metagenome-assembled genomes (MAGs) of Cyanobacteria representing 17 distinct species, most of which are only distantly related to genomes that have been sequenced so far. These include (i) lineages that are common in polar microbial mats such as the filamentous taxa Pseudanabaena, Leptolyngbya, Microcoleus/Tychonema and Phormidium; (ii) the less common taxa Crinalium and Chamaesiphon; (iii) an enigmatic Chroococcales lineage only distantly related to Microcystis; and (iv) an early branching lineage in the order Gloeobacterales that is distributed across the cold biosphere, for which we propose the name Candidatus Sivonenia alaskensis. Our results show that genome-resolved metagenomics is a powerful tool for expanding our understanding of the diversity of Cyanobacteria, especially in understudied remote and extreme environments. |
Agencias financiadoras | Belgian Federal Science Policy Office. Belgium Belgian National Fund for Scientific Research. Belgium Academy of Finland Junta de Andalucía |
Identificador del proyecto | AMBIO – SD/BA/01A
CCAMBIO – SD/BA/03A PORTAL – B2/212/P1/PORTAL 2.4570.09 CR.CH.10-11-1.5139.11 1314114 PAIDI-DOCTOR 21_00571 |
Cita | Pessi, I.S., Popin, R.V., Durieu, B., Lara, Y., Tytgat, B., Savaglia, V.,...,Wilmotte, A. (2023). Novel diversity of polar Cyanobacteria revealed by genome-resolved metagenomics. Microbial genomics, 9 (7). https://doi.org/10.1099/mgen.0.001056. |
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Novel diversity of polar.pdf | 5.707Mb | [PDF] | Ver/ | |