The genome of an intracellur symbiont of deep sea clam, Calyptogena phaseoliformis, is still in an early phase of reductive genome evolution.

http://www.godac.jamstec.go.jp/darwin/cruise/yokosuka/yk09-12/ehttp://www.godac.jamstec.go.jp/darwin/cruise/yokosuka/yk11-04/

The genomes of intracellur symbionts in deep-sea Calyptogena clams are still in an early phase of reductive genome evolution.

http://www.godac.jamstec.go.jp/darwin/cruise/yokosuka/yk09-12/ehttp://www.godac.jamstec.go.jp/darwin/cruise/yokosuka/yk11-04/ehttp://www.godac.jamstec.go.jp/darwin/cruise/natsushima/nt10-08/