Predicting the purebred-crossbred genetic correlation from phenotype and genotype data of parental lines pigs

Research output: Chapter in Book/Report/Conference proceedingConference paperAcademic

Abstract

In previous work, we theoretically derived expressions for an upper and lower bound of the correlation between purebred and crossbred performance (r pc), using only variance components of the parental purebred lines. In the current study, we validated these expressions in real data of pigs by comparing predicted bounds of r pc with the estimated r pc. We compared three methods to approximate the required variance components. The results suggest that the most useful method is to use ordinary REML estimates. If confirmed in other datasets, this approach may help breeders to predict the value of r pc based only on parental line information, or to determine the relative contributions of genotype by genotype and genotype by environment interactions to the value of r pc. We therefore advise studies estimating r pc with genotype data to also estimate and report genetic variance components within and between the parental lines, estimated as described in this study.
Original languageEnglish
Title of host publicationProceedings of 12th World Congress on Genetics Applied to Livestock Production (WCGALP)
Subtitle of host publicationTechnical and species orientated innovations in animal breeding, and contribution of genetics to solving societal challenges
EditorsR.F. Veerkamp, Y. de Haas
Place of PublicationWageningen
PublisherWageningen Academic Publishers
Pages761-764
Number of pages4
ISBN (Electronic)9789086869404
DOIs
Publication statusPublished - 2022
EventWorld Congress on Genetics Applied to Livestock Production: WCGALP 2022 - Rotterdam, Netherlands
Duration: 3 Jul 20228 Jul 2022

Conference

ConferenceWorld Congress on Genetics Applied to Livestock Production: WCGALP 2022
Country/TerritoryNetherlands
CityRotterdam
Period3/07/228/07/22

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