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Table 1 Mean genetic distances among HCV subtype 1 representative sequences

From: Complete genome of a European hepatitis C virus subtype 1g isolate: phylogenetic and genetic analyses

  subtype 1a subtype 1b subtype 1c Unassigned subtype 1 subtype 1g
subtype 1a (n = 10)   0.021 0.019 0.013 0.018
subtype 1b (n = 12) 0.690   0.019 0.014 0.012
subtype 1c (n = 2) 0.563 0.715   0.006 0.022
Unassigned subtype 1 (n = 1) 0.627 0.480 0.656   NA
subtype 1g (n = 1) 0.709 0.726 0.729 0.711  
  1. NA, not applicable.
  2. Mean genetic distances (lower-left matrix) among the HCV subtype 1g and representative sequences from subtypes 1a, 1b, 1c and an unassigned subtype 1 sequence. A codon-based nucleotide alignment containing the polyprotein of 26 complete genomes (9066 nucleotides) was used for distance estimates. Standard deviations are indicated in the upper-right matrix. Distance model was GTR+I+G with assumed proportion of invariable sites of 0.42 and a shape parameter (alpha) of 1.02 for the gamma distribution of substitution rates at variable sites. The number of sequences included in each subtype group is indicated in parenthesis.