Abstract

The genetic diversity and phylogeny of rhizobia isolated from nodules of nine wild-growing Lathyrus L. species (Fabaceae) growing in the Republic of Bashkortostan were studied. It is shown that, for the given plants, a large variety of heterogeneous strains of root nodule bacteria is characteristic. Nevertheless, it is revealed that the majority of them, in terms of phylogenetics, are closely related to Rhizobium leguminosarum. However, some plant species are found also: nodule bacteria, which were earlier considered unusual for Lathyrus. Thus, L. vernus L. Bernh. and L. sylvestris L. are found to have a root nodule bacteria close to R. tropici, L. palustris L. Agrobacterium sp., and L. gmelinii Fritsch, all bacteria isolated by us from root nodules by the sequence of genes of 16S rRNA, are closely related to Phyllobacterium myrsinacearum.

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