Table 1.
Summary statistics of sequence variation at the CAR locus.
| Sample | Sa | πb | θwc | TDd | θw/dive |
|---|---|---|---|---|---|
| African Americans | 16 | 0.50 (13) | 0.89 (33) | -1.37 (6) | 11.7 (57) |
| Europeans | 12 | 0.55 (41) | 0.66 (9.5) | -0.48 (23) | 8.7 (78) |
| Han | 6 | 0.42 | 0.33 | 0.72 |
a Number of segregating sites.
b Nucleotide diversity per base pair (× 10-3). Numbers in parentheses indicate the percentile rank of π relative to the distribution of π values in the Seattle SNP genes.
cWatterson's estimator of the population mutation rate parameter θ (= 4Nμ) per bp (× 10-3) [37].
d Tajima's D (TD) [38]. Numbers in parenthesis indicate the percentile rank of the TD value relative to the distribution of TD values in the Seattle SNP genes.
e Ratio of θW to the amount of sequence divergence between human and chimpanzee (per cent). Numbers in parenthesis indicate the percentile rank of the θW:div value relative to the distribution of θW:div values in the Seattle SNP genes.