How do bacterial endosymbionts work with so few genes?
Fig 1
Small genome endosymbionts are derived from diverse bacteria.
A phylogenetic tree of bacteria, where major groups containing organisms with genomes of less than 1 Mb are noted in blue, and groups with organisms containing genomes less than 200 kb are shown in red. The curved lines represent the approximate position of these groups on the tree. The yellow outline on the tree is there to de-emphasize the precision of the branches and to remind the reader that the group locations are approximate. The tree structure and phyla location were adapted from [1].