Genomic analysis of morphometric traits in bighorn sheep using the Ovine Infinium^® HD SNP BeadChip.

ABSTRACT: Elucidating the genetic basis of fitness-related traits is a major goal of molecular ecology. Traits subject to sexual selection are particularly interesting, as non-random mate choice should deplete genetic variation and thereby their evolutionary benefits. We examined the genetic basis of three sexually selected morphometric traits in bighorn sheep (Ovis canadensis): horn length, horn base circumference, and body mass. These traits are of specific concern in bighorn sheep as artificial selection through trophy hunting opposes sexual selection. Specifically, horn size determines trophy status and, in most North American jurisdictions, if an individual can be legally harvested. Using between 7,994-9,552 phenotypic measures from the long-term individual-based study at Ram Mountain (A

SUBMITTER: Miller JM 

PROVIDER: S-EPMC5817937 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature