Skip to Main content Skip to Navigation
Journal articles

A new clade of Mesorhizobium nodulating Alhagi sparsifolia

Abstract : We isolated 33 nodule bacteria from the legume Alhagi sparsifolia growing in the desert of northwest China. They fell into three groups by restriction analysis of their rrs (small subunit ribosomal RNA) genes, and these, together with dnaK and dnaJ genes, were sequenced from representative isolates to assess their taxonomic position by phylogenetic analysis. The bacteria in each group belonged to different lineages that might represent three different new Mesorhizobium species, two of which form a novel clade very distinct from other species in the genus. Most A. sparsifolia symbionts harboured closely related nodA and nodC genes forming new lineages. The presence of these closely related symbiosis genes in various genomic backgrounds and the incongruence observed between the different gene phylogenies indicate a history of horizontal gene transfer of symbiosis genes between the A. sparsifolia symbionts.
Complete list of metadata

Cited literature [39 references]  Display  Hide  Download

https://hal.univ-lorraine.fr/hal-01655732
Contributor : Cyril Bontemps Connect in order to contact the contributor
Submitted on : Friday, June 14, 2019 - 12:20:06 PM
Last modification on : Tuesday, May 11, 2021 - 4:20:02 PM

Identifiers

Collections

Citation

Gehong Wei, Weimin Chen, J. Peter W. Young, Cyril Bontemps. A new clade of Mesorhizobium nodulating Alhagi sparsifolia. Systematic and Applied Microbiology, Elsevier, 2009, 32 (1), pp.8-16. ⟨10.1016/j.syapm.2008.11.003⟩. ⟨hal-01655732⟩

Share

Metrics

Record views

42