• A genome‐wide association study for the number of teats in European rabbits identifies several candidate genes affecting this trait

    1 month ago - By Animal Genetics

    Summary
    In the European rabbit , a polytocous livestock species, the number of teats indirectly impacts the doe reproduction efficiency and, in turn, the sustainable production of rabbit meat. In this study, we carried out a genome‐wide association study for the total number of teats in 247 Italian White does included in the Italian White rabbit breed selection program, by applying a selective genotyping approach. Does had either 8 or 10 teats. All rabbits were genotyped with the Affymetrix Axiom OrcunSNP Array. Genomic data from the two extreme groups of rabbits were also analysed with...
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  • Genome‐wide association studies for growth‐related traits in a crossbreed pig population

    1 month ago - By Animal Genetics

    Summary
    Growth‐related traits are important economic traits in the pig industry that directly influence pork production efficiency. To detect quantitative trait loci and candidate genes affecting growth traits, genome‐wide association studies were performed for backfat thickness and loin muscle depth in 370 Chuying‐black pigs using Illumina PorcineSNP50 BeadChip array. We totally identified 14 BF‐associated SNPs, which included 11 genome‐wide SNPs and 3 chromosome‐wide suggestive SNPs and for LMD, 9 SNPs surpassed the genome‐wide significant threshold. These SNPs explained 30.33 and 27.51%...
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  • A genome‐wide association study reveals a quantitative trait locus for calf mortality on chromosome 9 in Japanese Black cattle

    1 month ago - By Animal Genetics

    Summary
    Calf mortality is a major problem affecting cattle production. To identify genetic variants associated with calf mortality in Japanese Black cattle, we evaluated calf mortality as a categorical trait using a threshold model and conducted a GWAS. We identified two SNPs between 32 549 297 and 32 606 924 bp on bovine chromosome 9 that were significantly associated with calf mortality from 61 to 180 days after birth. The SNP showing the highest association was localized at a region 624 bp downstream of exon 4 of the anti‐silencing function 1A histone chaperone gene that promotes DNA...
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