Performance of using opposing homozygotes for paternity testing in Japanese Black cattle

Ryota Komiya, Shinichiro Ogawa, Tatsuya Aonuma, Masahiro Satoh

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    Genome-wide single nucleotide polymorphism (SNP) markers in Japanese Black cattle enable genomic prediction and verifying parent–offspring relationships. We assessed the performance of opposing homozygotes (OH) for paternity testing in Japanese Black cattle, using SNP genotype information of 50 sires and 3,420 fattened animals, 1,945 of which were fathered by the 50 genotyped sires. The number of OH was counted for each sire–progeny pair in 28,764 SNPs with minor allele frequencies of ≥0.05 in this population. Across all pairs of animals, the number of OH tended to increase as the pedigree-based coefficient of relationship decreased. With a threshold of 288 (1% of SNPs) for paternity testing, most sire–progeny pairs were detected as true relationships. The frequency of Mendelian inconsistencies was 2.4%, reflecting the high accuracy of pedigree information in Japanese Black cattle population. The results indicate the utility of OH for paternity testing in Japanese Black cattle.

    Original languageEnglish
    Pages (from-to)113-124
    Number of pages12
    JournalJournal of Animal Breeding and Genetics
    Volume139
    Issue number1
    DOIs
    Publication statusPublished - 2022 Jan

    Keywords

    • Japanese Black cattle
    • opposing homozygotes
    • paternity testing
    • pedigree
    • single nucleotide polymorphism

    ASJC Scopus subject areas

    • Food Animals
    • Animal Science and Zoology

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