Genome-wide scan reveals population stratification and footprints of recent selection in Nelore cattle.

ABSTRACT:

Background

This study aimed at (1) assessing the genomic stratification of experimental lines of Nelore cattle that have experienced different selection regimes for growth traits, and (2) identifying genomic regions that have undergone recent selection. We used a sample of 763 animals genotyped with the Illumina BovineHD BeadChip, among which 674 animals originated from two lines that are maintained under directional selection for increased yearling body weight and 89 animals from a control line that is maintained under stabilizing selection.

Results

Multidimensional analysis of the genomic dissimilarity matrix and admixture analysis revealed a substantial level of population stratification between the directional selection lines and the stabilizing selection control line. T

SUBMITTER: Cardoso DF 

PROVIDER: S-EPMC5930444 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature