To evaluate how likelihood-based paternity inference procedures perform in two situations that were different in the level of heterozygosity and mean molecular coancestry among parents, a simulation study was performed. A range of parturition groups and molecular markers was used to evaluate how the percentage of correct assignment of a couple of parents to an offspring is affected by the two factors mentioned. When the number of markers was low, increasing the number of parturition groups improved the assignment of parents in both situations. Increasing the number of parturition groups and markers improved the performance of the parentage assignment, however, it was more effective when the heterozygosity was low and the molecular coancestry high.

D. O Maizon, J. BCHM van Kaam, R. Finocchiaro, M. Tolone, B. Portolano

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume , , 02.07, 2006
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