Natural selection drove metabolic specialization of the chromatophore in Paulinella chromatophora.
Cecilio Valadez-CanoRoberto Olivares-HernándezOsbaldo Resendis-AntonioAlexander DeLunaLuis DelayePublished in: BMC evolutionary biology (2017)
Our evolutionary analysis suggests that in the case of Paulinella chromatophora natural selection at the holobiont level played a prominent role in shaping the metabolic specialization of the chromatophore. We propose that natural selection acted as a "metabolic engineer" by favoring metabolic restructurings that led to an increased release of reduced-carbon to the host.