Table 2.
Parameters for determination of genetic diversity of pig populations
| Code | Breed/Population | Size | S | H | Hd ± SD | Pi | K |
|---|---|---|---|---|---|---|---|
| CHN-QH | Bamei | 115 | 10 | 10 | 0.491 ± 0.055 | 0.00264 | 1.15 |
| DUR | Duroc | 101 | 18 | 11 | 0.732 ± 0.033 | 0.00947 | 4.12 |
| LAN | Landrace | 108 | 18 | 18 | 0.853 ± 0.02 | 0.01567 | 6.815 |
| YOR | Yorkshire | 165 | 27 | 24 | 0.856 ± 0.018 | 0.01559 | 6.768 |
S: Number of polymorphic (segregating) sites
H: Number of haplotype
Pi: Nucleotide diversity, Nei 1987, eqs. 10.5 or 10.6 (Masatoshi Nei)
K: Average number of nucleotide differences; Tajima 1983, eq. A3 (Tajima)
Hd ± SD: Haplotype (gene) diversity and sampling variance, Nei 1987, eqs. 8.4 and 8.12 but replacing 2n with n. The standard deviation (or standard error) is the square root of the variance (Masatoshi Nei) [13]