Repeated evolutionary transitions of flavobacteria from marine to non‐marine habitats

Summary The taxonomy of marine and non‐marine organisms rarely overlap, but the mechanisms underlying this distinction are often unknown. Here, we predicted three major ocean‐to‐land transitions in the evolutionary history of Flavobacteriaceae , a family known for polysaccharide and peptide degradation. These unidirectional transitions were associated with repeated losses of marine signature genes and repeated gains of non‐marine adaptive genes....