OMIA:000483-9915 : Polled/Horns in Bos indicus (indicine cattle (zebu))

In other species: taurine cattle , goat , sheep , domestic yak , bighorn sheep , water buffalo , kouprey

Categories: Craniofacial phene

Links to possible relevant human trait(s) and/or gene(s) in OMIM: 110100 (trait)

Mendelian trait/disorder: unknown

Considered a defect: no

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'.

Molecular basis: By whole-genome sequencing with an Oxford Nanopore Technology's minION sequencer "four homozygous poll (PcPc), four homozygous horned (pp) and three heterozygous (Pcp) Brahmans" and comparing the sequence in the polled region, Lamb et al. (2020) confirmed that the polled allele in the Brahman breed is the Celtic allele. See 'OMIA 000483-9913 : Polled/Horns in Bos taurus' information on the variant.

Cite this entry

Nicholas, F. W., Tammen, I., & Sydney Informatics Hub. (2023). OMIA:000483-9915: Online Mendelian Inheritance in Animals (OMIA) [dataset].


Note: the references are listed in reverse chronological order (from the most recent year to the earliest year), and alphabetically by first author within a year.

2023 Aldersey, J.E., Liu, N., Tearle, R., Low, W.Y., Breen, J., Williams, J.L., Bottema, C.D.K. :
Topologically associating domains in the POLLED region are the same for Angus- and Brahman-specific Hi-C reads from F1 hybrid fetal tissue. Anim Genet 54:536-543, 2023. Pubmed reference: 36990727. DOI: 10.1111/age.13322.
2020 Lamb, H.J., Ross, E.M., Nguyen, L.T., Lyons, R.E., Moore, S.S., Hayes, B.J. :
Short Communication: Characterisation of the poll allele in Brahman cattle using long read Oxford Nanopore sequencing. J Anim Sci 98:skaa127, 2020. Pubmed reference: 32318708. DOI: 10.1093/jas/skaa127.
2012 Mariasegaram, M., Harrison, B.E., Bolton, J.A., Tier, B., Henshall, J.M., Barendse, W., Prayaga, K.C. :
Fine-mapping the POLL locus in Brahman cattle yields the diagnostic marker CSAFG29. Anim Genet 43:683-8, 2012. Pubmed reference: 22497221. DOI: 10.1111/j.1365-2052.2012.02336.x.
1996 Brenneman, R.A., Davis, S.K., Sanders, J.O., Burns, B.M., Wheeler, T.C., Turner, J.W., Taylor, J.F. :
The polled locus maps to BTA1 in a Bos indicus x Bos taurus cross J Hered 87:156-61, 1996. Pubmed reference: 8830095. DOI: 10.1093/oxfordjournals.jhered.a022975.

Edit History

  • Created by Imke Tammen2 on 10 Feb 2023
  • Changed by Imke Tammen2 on 10 Feb 2023