Caught in transition: facultative intracellularity and genome evolution of Symbiopectobacterium in Rhodnius species.

Blood-feeding insects typically depend on obligate intracellular bacterial symbionts that provide essential B vitamins absent from vertebrate blood. In contrast, kissing bugs (Triatominae) have long been considered atypical because they rely primarily on extracellular gut-associated bacteria. Recent reports of the genus Symbiopectobacterium in Rhodnius species raise questions about the diversity…

biorxiv.org ·1d ago

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