Ontology highlight
ABSTRACT:
SUBMITTER: Wisniewski-Dye F
PROVIDER: S-EPMC3245306 | biostudies-literature | 2011 Dec
REPOSITORIES: biostudies-literature
PLoS genetics 20111222 12
Fossil records indicate that life appeared in marine environments ∼3.5 billion years ago (Gyr) and transitioned to terrestrial ecosystems nearly 2.5 Gyr. Sequence analysis suggests that "hydrobacteria" and "terrabacteria" might have diverged as early as 3 Gyr. Bacteria of the genus Azospirillum are associated with roots of terrestrial plants; however, virtually all their close relatives are aquatic. We obtained genome sequences of two Azospirillum species and analyzed their gene origins. While m ...[more]