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J. Bacteriol., 01 1995, 468-472, Vol 177, No. 2
T Ueda, Y Suga, N Yahiro and T Matsuguchi
To understand the host specificity of rhizobia and the relationship between
the evolution of Sym plasmids and that of host plants, we determined
partial nodC sequences of 10 representative rhizobium strains and then
constructed an evolutionary tree for the deduced amino acid sequences with
four published sequences. These coding sequences yield a phylogenetic tree
similar to that for leghemoglobin of host plants, suggesting that the
evolution of common nodulation genes may be linked to host legume evolution
and speciation.
Copyright © 1995, American Society for Microbiology
Phylogeny of Sym plasmids of rhizobia by PCR-based sequencing of a nodC segment
Department of Agricultural Chemistry, Kyushu University, Fukuoka, Japan.
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