@article{fdi:010060408,
  title = {{B}urkholderia species are the most common and preferred nodulating symbionts of the {P}iptadenia {G}roup (tribe {M}imoseae)},
  author = {{B}ournaud, {C}. and de {F}aria, {S}. {M}. and dos {S}antos, {J}. {M}. {F}. and {T}isseyre, {P}ierre and {S}ilva, {M}. and {C}haintreuil, {C}l{\'e}mence and {G}ross, {E}. and {J}ames, {E}. {K}. and {P}rin, {Y}. and {M}oulin, {L}ionel},
  editor = {},
  language = {{ENG}},
  abstract = {{B}urkholderia legume symbionts (also called a-rhizobia) are ancient in origin and are the main nitrogen-fixing symbionts of species belonging to the large genus {M}imosa in {B}razil. {W}e investigated the extent of the affinity between {B}urkholderia and species in the tribe {M}imoseae by studying symbionts of the genera {P}iptadenia ({P}.), {P}arapiptadenia ({P}p.), {P}seudopiptadenia ({P}s.), {P}ityrocarpa ({P}y.), {A}nadenanthera ({A}.) and {M}icrolobius ({M}i.), all of which are native to {B}razil and are phylogenetically close to {M}imosa, and which together with {M}imosa comprise the "{P}iptadenia group'. {W}e characterized 196 strains sampled from 18 species from 17 locations in {B}razil using two neutral markers and two symbiotic genes in order to assess their species affiliations and the evolution of their symbiosis genes. {W}e found that {B}urkholderia are common and highly diversified symbionts of species in the {P}iptadenia group, comprising nine {B}urkholderia species, of which three are new ones and one was never reported as symbiotic ({B}. phenoliruptrix). {H}owever, a-rhizobia were also detected and were occasionally dominant on a few species. {A} strong sampling site effect on the rhizobial nature of symbionts was detected, with the symbiont pattern of the same legume species changing drastically from location to location, even switching from beta to alpha-rhizobia. {C}oinoculation assays showed a strong affinity of all the {P}iptadenia group species towards {B}urkholderia genotypes, with the exception of {M}i. foetidus. {P}hylogenetic analyses of neutral and symbiotic markers showed that symbiosis genes in {B}urkholderia from the {P}iptadenia group have evolved mainly through vertical transfer, but also by horizontal transfer in two species.},
  keywords = {{BRESIL}},
  booktitle = {},
  journal = {{P}los {O}ne},
  volume = {8},
  numero = {5},
  pages = {e63478},
  ISSN = {1932-6203},
  year = {2013},
  DOI = {10.1371/journal.pone.0063478},
  URL = {https://www.documentation.ird.fr/hor/fdi:010060408},
}