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Article Dans Une Revue Molecular Ecology Année : 2010

Burkholderia species are ancient symbionts of legumes

Geoffrey N. Elliott
  • Fonction : Auteur
Fábio B. dos Reis Júnior
  • Fonction : Auteur
Eduardo Gross
  • Fonction : Auteur
Rebecca C. Lawton
  • Fonction : Auteur
Nicolau Elias Neto
  • Fonction : Auteur
Maria de Fátima Loureiro
  • Fonction : Auteur
Sergio M. de Faria
  • Fonction : Auteur
Janet I. Sprent
  • Fonction : Auteur

Résumé

Burkholderia has only recently been recognized as a potential nitrogen-fixing symbiont of legumes, but we find that the origins of symbiosis in Burkholderia are much deeper than previously suspected. We sampled 143 symbionts from 47 native species of Mimosa across 1800 km in central Brazil and found that 98% were Burkholderia. Gene sequences defined seven distinct and divergent species complexes within the genus Burkholderia. The symbiosis-related genes formed deep Burkholderia-specific clades, each specific to a species complex, implying that these genes diverged over a long period within Burkholderia without substantial horizontal gene transfer between species complexes.

Dates et versions

hal-01655679 , version 1 (14-06-2019)

Identifiants

Citer

Cyril Bontemps, Geoffrey N. Elliott, Marcelo F. Simon, Fábio B. dos Reis Júnior, Eduardo Gross, et al.. Burkholderia species are ancient symbionts of legumes. Molecular Ecology, 2010, 19 (1), pp.44 - 52. ⟨10.1111/j.1365-294X.2009.04458.x⟩. ⟨hal-01655679⟩
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