Trophic Specialization Results in Genomic Reduction in Free-Living Marine Idiomarina Bacteria.

ABSTRACT: The streamlining hypothesis is generally used to explain the genomic reduction events related to the small genome size of free-living bacteria like marine bacteria SAR11. However, our current understanding of the correlation between bacterial genome size and environmental adaptation relies on too few species. It is still unclear whether there are other paths leading to genomic reduction in free-living bacteria. The genome size of marine free-living bacteria of the genus Idiomarina belonging to the order Alteromonadales (Gammaproteobacteria) is much smaller than the size of related genomes from bacteria in the same order. Comparative genomic and physiological analyses showed that the genomic reduction pattern in this genus is different from that of the classical SAR11 l

SUBMITTER: Qin QL 

PROVIDER: S-EPMC6336423 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature