From: Inferring relationships between pairs of individuals from locus heterozygosities
 | Parent-Child | Full sibs | 2.nd degree | Non-relatives | |
---|---|---|---|---|---|
A) Genotype combination | Â | Â | Â | Â | |
1 | AA, AA | pA 3 | pA 2(1+pA)2/4 | pA 3(1+pA)/2 | pA 4 |
2 | AA,AB | 2pA 2pB | pA 2pB(1+pA) | pA 2pB(1+2pA) | 4pA 3 pB |
3 | AA,BB | 0 | pA 2pB 2/2 | pA 2pB 2 | 2pA 2pB 2 |
4 | AB,AB | pApB(pA+pB) | pApB(2pApB+pA+pB+1)/2 | pApB(4pApB+pA+pB)/2 | 4pA 2pB 2 |
5 | AA,BC | 0 | pA 2pBpC | 2pA 2pBpC | 4pA 2pBpC |
6 | AB,AC | 2pApBpC | pApBpC(2pA+1) | pApBpC(4pA+1) | 8pA 2pBpC |
7 | AB,CD | 0 | 2pApBpCpD | 4pApBpCpD | 8pApBpCpD |
B) Number of shared alleles (Z) | Â | Â | Â | Â | |
0 | 0 | H2/8 | H2/4 | H2/2 | |
1 | H | H(1-H/2) | 3H/2-H2 | 2H-2H2 | |
2 | 1-H | 1-H(1-3H/8) | 1-3H/2+3H2/4 | 1-2H+3H2/2 |