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- Title
Burkholderia species are ancient symbionts of legumes.
- Authors
BONTEMPS, CYRIL; ELLIOTT, GEOFFREY N.; SIMON, MARCELO F.; DOS REIS JÚNIOR, FÁBIO B.; GROSS, EDUARDO; LAWTON, REBECCA C.; NETO, NICOLAU ELIAS; de FÁTIMA LOUREIRO, MARIA; DE FARIA, SERGIO M.; SPRENT, JANET I.; JAMES, EUAN K.; YOUNG, J. PETER W.
- Abstract
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.
- Subjects
BRAZIL; BURKHOLDERIA; MIMOSA; LEGUMES; SYMBIOSIS; NITROGEN-fixing microorganisms
- Publication
Molecular Ecology, 2010, Vol 19, Issue 1, p44
- ISSN
0962-1083
- Publication type
Academic Journal
- DOI
10.1111/j.1365-294X.2009.04458.x