Genomes of the "Candidatus Actinomarinales" Order: Highly Streamlined Marine Epipelagic Actinobacteria.

ABSTRACT: "Candidatus Actinomarinales" was defined as a subclass of exclusively marine Actinobacteria with small cells and genomes. We have collected all the available genomes in databases to assess the diversity included in this group and analyzed it by comparative genomics. We have found the equivalent of five genera and 18 genomospecies. They have genome reduction parameters equal to those of freshwater actinobacterial "Candidatus Nanopelagicales" or marine alphaproteobacterial Pelagibacterales Genome recruitment shows that they are found only in the photic zone and mainly in surface waters, with only one genus that is found preferentially at or below the deep chlorophyll maximum. "Ca Actinomarinales" show a highly conserved core genome (80% of the gene families

SUBMITTER: Lopez-Perez M 

PROVIDER: S-EPMC7771536 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature