π¦ Together, these findings show that seed-derived bacterial community structure is associated with host phylogeny in wild Medicago and breeding-related trait differentiation in cultivated alfalfa
πΏ Explicit consideration of community composition is important when canopy spectral variability is used to infer plant alpha diversity across plant communities
π· These findings demonstrate that increasing dominance of exotic plants can generate microbial legacies that progressively favour exotic plants over native plants