TABLE 4

The extent of trans-specificity in data

Selected codonDirection LminLmax
ABO: human/chimp
 156 (010)3′ 0 46
Opsin: saki/howler
 180 (010)5′ 0 31
 229 (100)–233 (100)5′ 0 12
3′ 0 54
 277 (010)–285 (100)5′ 0 93
3′ 0199
Opsin: capuchin/squirrel
 180 (010)5′ 0 97
3′>20?
 229 (100)–233 (100)5′ 0 12
3′54130
 275 (100)–276 (101)–277
     (010)–285 (100)5′22181
Opsin: tamarin/marmoset
 180 (010)5′22181
 229 (100)–233 (100)5′ 2 67
3′ 0 62
 275 (100)–285 (010)5′ 0181
  • The position of the trans-specific site in each selected codon is given by the three numbers in parentheses: 1 represents the trans-specific site. Lmin is the distance, in base pairs, to the last putatively nonselected trans-specific polymorphism from the selected sites in the given direction. Lmax is similarly the distance to the first fixed difference between the species. Data are from Saitou and Yamamoto (1997), Shyue et al. (1995)(1998), and Boissinot et al. (1998).