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Table 1 Relationship of phylogeny and species association by physico-chemical property.

From: Sequence variability of Rhizobiales orthologs and relationship with physico-chemical characteristics of proteins

   Association by physico-chemical property
Ortholog classes Number of genes Polarity Secondary structure Volume Amino acid composition Electrostatic charge
Orthologs 1416 RS-A-M-B RS-A-BM RA-S-BM RS-A-M-B RA-S-M-B
Syntenic orthologs 705 RS-A-BM RA-S-BM RA-S-BM RS-A-BM RA-S-BM
Syntenic orthologs divided by phylogeny     
RA-S-BM 380 RS-A-BM RA-S-BM RA-S-BM RS-A-BM RA-S-BM
RS-A-BM 180 RS-A-BM RS-A-BM RA-S-BM RS-A-BM RA-S-BM
AS-R-BM 92 RS-A-BM AS-R-BM RS-A-BM RA-S-BM AS-R-BM
  1. Syntenic orthologs with phylogenies other than the main three shown (accounting for 53 products) were discarded from the analysis. Letters denote species: R: R. etli, S: S. meliloti, A: A. tumefaciens, B: Brucella melitensis, M: Mesorhizobium loti (a pair of letters denote that these species are in the same branch). Species association remarked in bold denotes equivalence with phylogeny.