Recombination events restored the functional horned haplotypes in the offspring of polled parents.

ABSTRACT:

Background

Breeding of genetically polled animals is a desirable approach in modern cattle husbandry for welfare and economic reasons. At least four different genetic variants associated with polledness in cattle have been identified, suggesting genetic heterogeneity. These dominant variants are located on chromosome 1 between approximately 2.42-2.73 Mb (reference: ARS-UCD1.3), also called the POLLED locus. Among these variants, Friesian (P_F, ~ 80 kbp duplication) and Celtic (P_C, 212 bp complex InDel) are the most common across breeds in the production systems globally, such as in Holstein-Friesian (HF) and Fleckvieh (FV). While studies have provided strong evidence supporting the association of the P_F allele with the polledness, it has not yet been

SUBMITTER: Upadhyay M 

PROVIDER: S-EPMC12579413 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature