Simple and rapid inversion of additive relationship matrices incorporating parental uncertainty
Open Access
- 1 April 1992
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Animal Science
- Vol. 70 (4) , 1045-1048
- https://doi.org/10.2527/1992.7041045x
Abstract
Animals bred in pastoral systems are often part of multiple-sire groups, introducing uncertainty into pedigrees. Genetic evaluation of sires and dams in such instances is complicated by the uncertainty of parenthood. This article defines a simple and rapid algorithm to compute the inverse of a numerator relationship matrix under uncertain parenthood. The algorithm can accommodate inbreeding and uncertainty of parenthood on both paternal and maternal sides of the pedigree.Keywords
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