Beyond black and white: dissecting the genetic basis of skin depigmentation in Nellore cattle.

ABSTRACT: Depigmentation defects in cattle are characterized by the absence of pigment in specific skin regions, increasing susceptibility to health issues and often leading to early culling. In Nellore cattle, depigmentation is primarily observed at the tail tip, mucous membranes, and as small patches across the body. This study aimed to estimate genetic parameters and perform a genome-wide association study (GWAS) for depigmentation in Nellore cattle. Data were sourced from the DeltaGen® breeding program, provided by Gensys®. Phenotypic records included 182,964 Nellore cattle, with a 6.8% incidence of depigmentation. Of these, 28,655 genotyped animals and 385,079 SNPs were available for the analysis. The ultra-fast generalized linear mixed model for binary traits (fastGWA-GLMM) was used for the GW

SUBMITTER: Campos MAF 

PROVIDER: S-EPMC12578768 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature