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The ftsA gene as a molecular marker for phylogenetic studies in Bradyrhizobium and identification of Bradyrhizobium japonicum



The ftsA gene as a molecular marker for phylogenetic studies in Bradyrhizobium and identification of Bradyrhizobium japonicum



Journal of Applied Genetics 2018



The use of ftsA gene sequences for taxonomic studies of the genus Bradyrhizobium bacteria was assessed. The ftsA gene codes for an actin-like protein involved in prokaryotic cell division. Up to now, this gene has not been used as a phylogenetic marker for analysis of bacteria establishing root nodule symbiosis with Fabaceae plants. In this study, the ftsA gene sequences obtained for bradyrhizobia forming N2 fixing symbiosis with four Genisteae tribe plants growing in Poland and most of the type strains of the genus Bradyrhizobium species were analyzed and evaluated as molecular markers for phylogenetic studies of these bacteria for the first time. The ftsA gene sequences of all bradyrhizobial strains with completely or partially sequenced genomes, available in the GenBank database, were also included into the analysis. The phylogeny of the ftsA gene was compared to the phylogenies of other chromosomal genes commonly used in the studies of Bradyrhizobium bacteria. The results showed that the phylogenies of ftsA and the core genes recA and glnII were congruent, making the ftsA gene useful as a phylogenetic marker. Analysis of the ftsA gene sequences revealed a single-nucleotide polymorphism unique to Bradyrhizobium japonicum strains, and the potential use of this SNP for identification of this species was discussed.

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Accession: 065941690

Download citation: RISBibTeXText

PMID: 30417315

DOI: 10.1007/s13353-018-0479-9


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