Table 1 IBD sharing probabilities for different relations in absence of inbreeding
From: KIN: a method to infer relatedness from low-coverage ancient DNA
Relatedness | \(k_0\) | \(k_1\) | \(k_2\) |
|---|---|---|---|
Unrelated | 1 | 0 | 0 |
3rd degree | 0.75 | 0.25 | 0 |
2nd degree | 0.5 | 0.5 | 0 |
Siblings | 0.25 | 0.5 | 0.25 |
Parent–child | 0 | 1 | 0 |
Identical/twins | 0 | 0 | 1 |