Genomic regions associated with resistance to gastrointestinal parasites in Australian Merino sheep.
2024
VERA, B. | NAVAJAS, E. | PERAZA, P. | CARRACELAS, B. | VAN LIER, E. | CIAPPESONI, G.
ABSTRACT.- The objective of this study was to identify genomic regions and genes associated with resistance to gastrointestinal nematodes in Australian Merino sheep in Uruguay, using the single-step GWAS methodology (ssGWAS), which is based on genomic estimated breeding values (GEBVs) obtained from a combination of pedigree, genomic, and phenotypic data. This methodology converts GEBVs into SNP effects. The analysis included 26,638 animals with fecal egg count (FEC) records obtained in two independent parasitic cycles (FEC1 and FEC2) and 1700 50K SNP genotypes. © 2024 by the authors.
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