OMIA:002075-9031 : Beak, crossed in Gallus gallus (chicken)

Categories: Craniofacial phene

Links to MONDO diseases: No links.

Mendelian trait/disorder: unknown

Considered a defect: yes

Cross-species summary: crossed bill

Inheritance: Joller et al. (2018): "The findings suggest a hereditary cause of crossed beaks in Appenzeller Barthuhn chickens. However, the observed variation in the phenotype, together with the inconclusive molecular genetic results indicates the need for additional research to unravel the genetic architecture of this beak deformity."

Genetic engineering: Unknown
Have human generated variants been created, e.g. through genetic engineering and gene editing

Breed: Appenzeller Barthuhn (Chicken) (VBO_0000443).
Breeds in which the phene has been documented. For breeds in which a likely causal variant has been documented, see the variant table below

Cite this entry

Nicholas, F. W., Tammen, I., & Sydney Informatics Hub. (2018). OMIA:002075-9031: 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.

2018 Joller, S., Bertschinger, F., Kump, E., Spiri, A., von Rotz, A., Schweizer-Gorgas, D., Drögemüller, C., Flury, C. :
Crossed beaks in a local Swiss chicken breed. BMC Vet Res 14:68, 2018. Pubmed reference: 29506524. DOI: 10.1186/s12917-018-1398-z.
2016 Bai, H., Sun, Y., Zhu, J., Liu, N., Li, D., Xue, F., Li, Y., Chen, J. :
Study on LOC426217 as a candidate gene for beak deformity in chicken. BMC Genet 17:44, 2016. Pubmed reference: 26891797. DOI: 10.1186/s12863-016-0353-x.
2014 Bai, H., Zhu, J., Sun, Y., Liu, R., Liu, N., Li, D., Wen, J., Chen, J. :
Identification of genes related to beak deformity of chickens using digital gene expression profiling. PLoS One 9:e107050, 2014. Pubmed reference: 25198128. DOI: 10.1371/journal.pone.0107050.

Edit History

  • Created by Frank Nicholas on 17 Nov 2016
  • Changed by Frank Nicholas on 23 Mar 2018
  • Changed by Frank Nicholas on 21 Aug 2018