Table 3.

Within-family estimates of sequence variation

243tbl3

[i] aSequences with premature stop codons were removed prior to analysis.

[ii] INT, integrase; RVT, reverse transcriptase; GAG, gag; RH, RNase H; πn, nucleotide variation at nonsynonymous positions of the codon; πs, nucleotide variation at the synonymous codon position.