Genomic divergence within non-photosynthetic cyanobacterial endosymbionts in rhopalodiacean diatoms.

ABSTRACT: Organelle acquisitions via endosymbioses with prokaryotes were milestones in the evolution of eukaryotes. Still, quite a few uncertainties have remained for the evolution in the early stage of organellogenesis. In this respect, rhopalodiacean diatoms and their obligate cyanobacterial endosymbionts, called spheroid bodies, are emerging as new models for the study of organellogenesis. The genome for the spheroid body of Epithemia turgida, a rhopalodiacean diatom, has unveiled its unique metabolic nature lacking the photosynthetic ability. Nevertheless, the genome sequence of a spheroid body from a single lineage may not be sufficient to depict the evolution of these cyanobacterium-derived intracellular structures as a whole. Here, we report on the complete genome for the spheroid body of Rho

SUBMITTER: Nakayama T 

PROVIDER: S-EPMC5638926 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature