Characterization and management of long runs of homozygosity in parental nucleus lines and their associated crossbred progeny

Table 1 Summary of numbers of animals^a and SNPs after quality control by breed

DU Duroc, LW Large White, LA Landrace
^aThe females born in 2012 were used in the principal component analysis and to characterize the ROH frequency within the purebred population, while both males and females born in 2012 were used to generate the crossbred genome to characterize ROH frequency and in mating designs
^bGenotypes were simulated based on the purebred genotypes and therefore were not genotyped on a platform
^cRefers to the number of SNPs used in the calculation to determine whether a given SNP was in a ROH of at least 5 Mb
^dRefers to the number of SNPs used in the calculation to determine whether a given SNP was in a ROH of at least 10 Mb

ISSN: 1297-9686