Phylogenetic clustering of Bradyrhizobium symbionts on legumes indigenous to North America.

@article{Koppell2012PhylogeneticCO,
  title={Phylogenetic clustering of Bradyrhizobium symbionts on legumes indigenous to North America.},
  author={Jonathan Harris Koppell and Matthew Archibald Parker},
  journal={Microbiology},
  year={2012},
  volume={158 Pt 8},
  pages={
          2050-9
        }
}
To analyse determinants of biogeographic structure in members of the genus Bradyrhizobium, isolates were obtained from 41 legume genera, originating from North American sites spanning 48.5 ° of latitude (Alaska to Panama). Sequencing of portions of six gene loci (3674 bp) in 203 isolates showed that there was only a weak trend towards higher nucleotide diversity in tropical regions. Phylogenetic relationships for nifD, in the symbiosis island region of the Bradyrhizobium chromosome, conflicted… CONTINUE READING

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