Studying the Tiniest Archaea, JGI Users Find a Genomic Switch of Friend or Foe
Within the archaeal domain, there is a group of tiny hitchhikers. These organisms are abundant and yet exceptionally small, with mini genomes to match. To fill in their nutrient gaps, they must latch onto a larger host — often, a fellow archaeal microbe. Recently, researchers used population genomics to find that while archaeal hitchhikers may often act as parasites, in other cases, they likely help their hosts.
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