A genome-wide association study reveals novel SNP markers associated with resilience traits in two Mediterranean dairy sheep breeds.

ABSTRACT: Genetic selection for higher productivity increased dairy sheep susceptibility to diseases and environmental stressors, challenging their health and welfare status and production efficiency. Improving resilience to such stressors can enhance their ability to face these challenges without compromising productivity. Our objective was to estimate genomic heritability and perform genome-wide association studies (GWAS) to detect SNPs and candidate genes associated with three proxy traits for resilience (milk somatic cell count-SCC, lactation persistency-LP, body condition score-BCS) of Chios and Frizarta dairy ewes. We used genome-wide genotypes of 317 Chios and 346 Frizarta ewes. Individual records of milk yield and BCS, and milk samples were collected monthly for two consecutive milking perio

SUBMITTER: Argyriadou A 

PROVIDER: S-EPMC10702769 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature