[i] ^aThe coding sequence of each large exon was analyzed. Bolded values in the table indicate statistical significance with P < 0.05.

[ii] ^bS indicates segregating sites. In each gene tested, S is also equal to the number of mutations.

[iii] ^chs indicates the number of singleton mutations.

[iv] ^dPi indicates the average number of nucleotide differences between pairs of sequences per site.

[v] ^eθ indicates the effective population size multiplied by the mutation rate per generation per site.