OMIA 000483 : Polled/Horns

Category: Craniofacial phene

Possible human homologue (MIM number): 110100 (trait)

Links to MONDO diseases: No links.

Cross-species summary: Horns are paired appendages with a bony core that is attached to the skull and a keratin outer sheath. There is substantial variation in the extent of horn growth, making classification difficult. However, in general, the presence or absence of horns can be attributed to the action of two alleles at an autosomal locus. The type of gene action varies considerably between and among species. Absence of horns is called 'polled'. See also entries for 'scurs'.

Species in which this phene is found:
cattle (Bos taurus)
goat (Capra hircus)
sheep (Ovis aries)
domestic yak (Bos grunniens)
bighorn sheep (Ovis canadensis)
water buffalo (Bubalus bubalis)
kouprey (Bos sauveli)

Edit History


  • Created by Frank Nicholas on 03 May 2005
  • Changed by Frank Nicholas on 06 Dec 2011
  • Changed by Frank Nicholas on 16 Jun 2013
  • Changed by Frank Nicholas on 27 Aug 2013
  • Changed by Imke Tammen2 on 26 Sep 2021
  • Changed by Imke Tammen2 on 18 Sep 2022