| Individual | Level | Type |
---|
Detected | 7 | 1st | Recent |
 | 2 | 2nd | Recent |
 | 5 | 3rd | Recent |
 | 1 | 4th | Recent |
 | 3 | 2nd | Recent |
Not detected | 9 | 3rd | Advanced |
(type II error) | 6 | 2nd | Advanced |
 | 8 | 2nd | Advanced |
 | 4 | 5th | Advanced |
- Individual numbering corresponds to Goedbloed et al. [21]. The level of introgression is based on the number of introgressed domestic alleles per individual and expressed as being equivalent to the number of generations since hybridization according to simulations [21]. The type of hybrid (recent versus advanced generation) is distinguished based on the genomic distribution of introgressed alleles (clustered or spread out respectively) [21].