Identification of Runs of Homozygosity Islands and Genomic Estimated Inbreeding Values in Caqueteno Creole Cattle (Colombia).

ABSTRACT: The Caqueteño Creole (CAQ) is a native breed of cattle from the Caquetá department (Colombia), adapted to tropical conditions, which is extremely important to production systems in those regions. However, CAQ is poorly studied. In this sense, population structure studies associated with runs of homozygosity (ROH) analysis would allow for a better understanding of CAQ. Through ROH analysis, it is possible to reveal genetic relationships between individuals, measure genome inbreeding levels, and identify regions associated with traits of economic interest. Samples from a CAQ population (n = 127) were genotyped with the Bovine HD BeadChip (777,000 SNPs) and analyzed with the PLINK 1.9 program to estimate FROH and ROH islands. We highlighted a decrease in inbreeding frequency for FROH 4−8 Mb,

SUBMITTER: Toro-Ospina AM 

PROVIDER: S-EPMC9318017 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature