Ancestral phototrophic Rhizobiaceae evolved in association with algae, then plants
Rhizobiaceae serve as classical models for elucidating mutualistic plant-microbe interactions yet they represent a narrow phylogenetic subgroup of Alphaproteobacteria. Studying additional lineages of Rhizobiaceae, we observed broad associations with oxygenic phototrophs beyond land plants, including early branching clades of submerged plants, multicellular and unicellular algae, as well as…
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