TABLE 1.
Summary statistics of the four data sets analyzed
| Autosome
|
X chromosome
|
|||
|---|---|---|---|---|
| Europe | Africa | Europeb | Africab | |
| No. of loci | 378 | 53 | 259 | 249 |
| Average sample size | 10.96 | 7.96 | 11.86 | 11.72 |
| Average length of alignmenta | 536.1 | 510.5 | 527.7 | 501.3 |
| Average (SE) recombination rates × 10−8 | 3.3 (0.06) | 3.4 (0.16) | 3.5 (0.07) | 3.5 (0.07) |
| Average (SE) GC content in % | 41.4 (0.003) | 41.6 (0.007) | 39.1 (0.004) | 39.0 (0.004) |
| No. of invariant loci | 1 | 0 | 21 | 0 |
| Average (SE) θ in % | 0.68 (0.02) | 1.14 (0.11) | 0.47 (0.03) | 1.34 (0.05) |
| Average (SE) π in % | 0.66 (0.03) | 1.04 (0.10) | 0.48 (0.03) | 1.17 (0.04) |
| Average (SE) divergence (K) in % | 5.0 (0.16) | 5.2 (0.46) | 6.8 (0.22) | 6.4 (0.19) |
| Average (SE) θ/K | 0.16 (0.005) | 0.25 (0.025) | 0.08 (0.004) | 0.22 (0.006) |
| Average (SE) D/Dmin | −0.08 (0.027) | −0.25 (0.052) | −0.09 (0.045) | −0.32 (0.018) |
| Significant Tajima's D values (+/−) | 15/32 | 0/3 | 25/50 | 0/21 |
| Average (SE) ZnS8 | 0.40 (0.010) | 0.29 (0.019) | 0.51 (0.018) | 0.20 (0.005) |
a
Excluding indels.
b
The updated data set (Ometto et al. 2005) based on the annotation of the D. melanogaster genome Release 4.2.1.