Strains nodulating Lupinus albus on different continents belong to several new chromosomal and symbiotic lineages within Bradyrhizobium

Antonie van Leeuwenhoek
Encarna VelázquezEustoquio Martínez-Molina

Abstract

In this work we analysed different chromosomal and symbiotic markers in rhizobial strains nodulating Lupinus albus (white lupin) in several continents. Collectively the analysis of their rrs and atpD genes, and 16S-23S intergenic spacers (ITS), showed that they belong to at least four chromosomal lineages within the genus Bradyrhizobium. Most isolates from the Canary Islands (near to the African continent) grouped with some strains isolated on mainland Spain and were identified as Bradyrhizobium canariense. These strains are divided into two ITS subgroups coincident with those previously described from isolates nodulating Ornithopus. The remaining strains isolated on mainland Spain grouped with most isolates from Chile (American continent) forming a new lineage related to Bradyrhizobium japonicum. The strains BLUT2 and ISLU207 isolated from the Canary Islands and Chile, respectively, formed two new lineages phylogenetically close to different species of Bradyrhizobium depending on the marker analyzed. The analysis of the nodC gene showed that all strains nodulating L. albus belong to the biovar genistearum; nevertheless they form four different nodC lineages of which lineage C is at present exclusively formed by L. albus endosy...Continue Reading

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Citations

Sep 12, 2013·International Journal of Systematic and Evolutionary Microbiology·José David Flores-FélixEncarna Velázquez
Jan 25, 2011·International Journal of Systematic and Evolutionary Microbiology·Rajaa ChahbouneEulogio J Bedmar
Jun 15, 2014·International Journal of Systematic and Evolutionary Microbiology·Lorena CarroEncarna Velázquez
Jan 23, 2015·International Journal of Systematic and Evolutionary Microbiology·Alvaro PeixEncarna Velázquez
Mar 28, 2017·International Journal of Molecular Sciences·Mitchell Andrews, Morag E Andrews
Jul 4, 2017·International Journal of Systematic and Evolutionary Microbiology·Juan AraújoEncarna Velázquez
Nov 24, 2019·Journal of Applied Microbiology·M Missbah El IdrissiH Abdelmoumen
Sep 9, 2020·International Journal of Systematic and Evolutionary Microbiology·Mokhtar RejiliMacarena Marín
May 21, 2021·Systematic and Applied Microbiology·Soufiane AlamiMustapha Missbah El Idrissi

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