Accelerated evolution associated with genome reduction in a free-living prokaryote |
| |
Authors: | Alexis Dufresne Laurence Garczarek and Frédéric Partensky |
| |
Institution: | (1) Station Biologique, UMR 7127 CNRS et Universit? Paris 6, BP74, 29682 Roscoff Cedex, France |
| |
Abstract: | Background Three complete genomes of Prochlorococcus species, the smallest and most abundant photosynthetic organism in the ocean, have recently been published. Comparative genome
analyses reveal that genome shrinkage has occurred within this genus, associated with a sharp reduction in G+C content. As
all examples of genome reduction characterized so far have been restricted to endosymbionts or pathogens, with a host-dependent
lifestyle, the observed genome reduction in Prochlorococcus is the first documented example of such a process in a free-living organism. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|