@article{fdi:010093388,
  title = {{C}orrelating phylogenetic and functional diversity of the nod-free but nodulating {B}radyrhizobium phylogroup},
  author = {{L}ing, {L}. and {C}amuel, {A}licia and {W}ang, {S}. {S}. and {W}ang, {X}. {J}. and {L}iao, {T}. {H}. and {T}ao, {J}. {J}. and {L}in, {X}. {Q}. and {N}ouwen, {N}ico and {G}iraud, {E}ric and {L}uo, {H}. {W}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}radyrhizobium is a main rhizobial lineage of which most members nodulate legume plants using {N}od factors synthetized by the nod genes. {H}owever, members of the {P}hotosynthetic supergroup (phylogroup) within {B}radyrhizobium are nod-free, but still capable of establishing nitrogen-fixing nodules with some tropical legumes of the {A}eschynomene genus. {T}hese unusual findings are based on the genomic sequences of only 13 {P}hotosynthetic {B}radyrhizobium strains, and almost all were isolated from {A}eschynomene nodules. {H}ere, we report that {P}hotosynthetic {B}radyrhizobium supergroup members are more abundantly associated with rice root (endosphere and rhizosphere) compared to grassland, forest, and maize samples based on rpo{B} amplicon sequence analyses. {W}e sequenced 263 new isolates of this supergroup mostly from two main subspecies of cultivated rice ({O}ryza sativa {L}. spp. indica and japonica). {T}he extended supergroup comprises three major clades with their diversity broadly covering the natural community of this supergroup: a basal clade with significant expansion of its diversity, a clade composed by two phylogenetically diverse strains including one newly isolated, and a new clade exclusively represented by our new strains. {A}lthough this supergroup members universally lack the canonical nod genes, all 28 assayed strains covering the broad diversity induced nodules on {A}eschynomene indica. {T}he three clades displayed important differences in the efficiency of symbiosis, aligning well with their phylogenetic divergence. {W}ith this expanded ecological, phylogenetic, and functional diversity, we conclude that the nod factor-independent nodulation of {A}eschynomene is a common trait of this supergroup, in contrast to the photosynthetic trait originally thought of as its unifying feature.},
  keywords = {{B}radyrhizobium ; {A}eschynomene ; nodulation ; phylogenetic diversity ; population genomics},
  booktitle = {},
  journal = {{ISME} {J}ournal},
  volume = {19},
  numero = {1},
  pages = {wraf030 [8 p.]},
  ISSN = {1751-7362},
  year = {2025},
  DOI = {10.1093/ismejo/wraf030},
  URL = {https://www.documentation.ird.fr/hor/fdi:010093388},
}