Table 4.
Duplication, heterozygosity and diversity of SLA-1 for various breeds of pigs.
| Breeds | Number of samples |
Number of duplicated chromosomes |
aDuplication rate |
bObserved heterozygosity |
cExpected heterozygosity |
Shannon Index |
Evenness |
|---|---|---|---|---|---|---|---|
| KNP | 114 | 13 | 0.06 | 0.64 | 0.73 | 1.57 | 0.78 |
| SNU | 52 | 104 | 1 | 1 | 0.62 | 1.57 | 0.78 |
| NIH | 29 | 44 | 0.76 | 0.83 | 0.61 | 1.44 | 0.91 |
| Duroc | 21 | 0 | 0 | 0.33 | 0.42 | 1.22 | 0.53 |
| Berkshire | 19 | 15 | 0.39 | 0.89 | 0.85 | 3.02 | 0.87 |
| Yorkshire | 19 | 11 | 0.29 | 0.89 | 0.92 | 3.81 | 0.93 |
| Landrace | 19 | 5 | 0.13 | 0.84 | 0.91 | 3.89 | 0.92 |
| ATCC | 8 | 3 | —d | — | — | — | — |
| Land x KNP | 6 | 2 | — | — | — | — | — |
| Lanyu | 5 | 0 | — | — | — | — | — |
| Ossabaw | 5 | 2 | — | — | — | — | — |
| Meishan | 4 | 5 | — | — | — | — | — |
| Local PAM cells | 4 | 0 | — | — | — | — | — |
| AGH | 2 | 0 | — | — | — | — | — |
| All | 307 | 204 | 0.33 | 0.75 | 0.91 |
aDuplication rate = number of chromosomes containing SLA-1 duplication/total number of chromosomes.
bObserved heterozygosity = number of heterozygotes/total number of individuals.
cExpected heterozygosity = 1 − ∑ pi2, where pi is the allele frequency of the i-th allele
dValues were not calculated due to low numbers (<10) of individuals in the population.