Hiding in Plain Sight: The Globally Distributed Bacterial Candidate Phylum PAUC34f

Bacterial candidate phylum PAUC34f was originally discovered in marine sponges and is widely considered to be composed of sponge symbionts. Here, we report 21 single amplified genomes (SAGs) of PAUC34f from a variety of environments, including the dark ocean, lake sediments, and a terrestrial aquife...

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Bibliographic Details
Published in:Frontiers in microbiology 2020-03, Vol.11, p.376
Main Authors: Chen, Michael L, Becraft, Eric D, Pachiadaki, Maria, Brown, Julia M, Jarett, Jessica K, Gasol, Josep M, Ravin, Nikolai V, Moser, Duane P, Nunoura, Takuro, Herndl, Gerhard J, Woyke, Tanja, Stepanauskas, Ramunas
Format: Article
Language:English
Subjects:
BASIC BIOLOGICAL SCIENCES
dark ocean
host-association
microbial ecology
microbial genomics
Microbiology
uncultivated bacteria
uncultivated bacterial
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Summary:Bacterial candidate phylum PAUC34f was originally discovered in marine sponges and is widely considered to be composed of sponge symbionts. Here, we report 21 single amplified genomes (SAGs) of PAUC34f from a variety of environments, including the dark ocean, lake sediments, and a terrestrial aquifer. The diverse origins of the SAGs and the results of metagenome fragment recruitment suggest that some PAUC34f lineages represent relatively abundant, free-living cells in environments other than sponge microbiomes, including the deep ocean. Both phylogenetic and biogeographic patterns, as well as genome content analyses suggest that PAUC34f associations with hosts evolved independently multiple times, while free-living lineages of PAUC34f are distinct and relatively abundant in a wide range of environments.
ISSN:1664-302X
1664-302X
DOI:10.3389/fmicb.2020.00376