OMIA:001696-9031 : Earlobe pigmentation in Gallus gallus (chicken)

Categories: Pigmentation phene

Single-gene trait/disorder: no

Mode of inheritance: Multifactorial

Disease-related: no

Key variant known: no

History: This trait was first described by Warren (1928).

Mapping: Wragg et al. (2012) mapped this trait to several regions, concluding that it is "sex-linked and polygenic". Guo et al. (2023): "compared the genomes of multiple domestic chicken breeds with red and white earlobes to identify the differentiated regions between groups of breeds differing in earlobe color. This was done using a selective sweep mapping approach based on whole-genome sequence data. The most significant selective sweep was identified on chromosome 11, where the white earlobe chicken breeds originated from Mediterranean share a common haplotype, and where multiple candidate genes are located. The most plausible functional candidate gene is the Melanocortin 1 Receptor (MC1R) ... ."

Breeds: Jiangshan Silkies, China (Chicken) (VBO_0006699), Rhode Island Red (Chicken) (VBO_0000599).
Breeds in which the phene has been documented. (If a likely causal variant has been documented for the phene, see the variant table breeds in which the variant has been reported).

Cite this entry

Nicholas, F. W., Tammen, I., & Sydney Informatics Hub. (2024). OMIA:001696-9031: Online Mendelian Inheritance in Animals (OMIA) [dataset]. https://omia.org/. https://doi.org/10.25910/2AMR-PV70

References

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.

2024 Li, S., Wang, Z., Li, S., Ding, X., Fang, Q., Pan, X., Gao, G., Du, X., Zhao, A. :
Research Note: Metabolomics revealed the causes of the formation of chicken structural blue earlobes. Poult Sci 103:S0032-5791(24)00787-9:104208, 2024. Pubmed reference: 39190999. DOI: 10.1016/j.psj.2024.104208.
Li, S., Du, Y., Du, X., Ding, X., Zhao, A., Wang, Z. :
Transcriptome and proteome revealed the differences in 3 colors of earlobe in Jiangshan Black-bone chicken. Poult Sci 103:103864, 2024. Pubmed reference: 38838590. DOI: 10.1016/j.psj.2024.103864.
2023 Guo, Y., Rubin, C.J., Rönneburg, T., Wang, S., Li, H., Hu, X., Carlborg, Ö. :
Whole-genome selective sweep analyses identifies the region and candidate gene associated with white earlobe color in Mediterranean chickens. Poult Sci 103:103232, 2023. Pubmed reference: 37980749. DOI: 10.1016/j.psj.2023.103232.
2016 Nie, C., Zhang, Z., Zheng, J., Sun, H., Ning, Z., Xu, G., Yang, N., Qu, L. :
Genome-wide association study revealed genomic regions related to white/red earlobe color trait in the Rhode Island Red chickens. BMC Genet 17:115, 2016. Pubmed reference: 27496128. DOI: 10.1186/s12863-016-0422-1.
2012 Wragg, D., Mwacharo, J.M., Alcalde, J.A., Hocking, P.M., Hanotte, O. :
Analysis of genome-wide structure, diversity and fine mapping of Mendelian traits in traditional and village chickens. Heredity (Edinb) 109:6-18, 2012. Pubmed reference: 22395157. DOI: 10.1038/hdy.2012.9.
1943 Hays, F.A. :
Inheritance of mottled earlobes and stubs in Rhode Island Reds American Naturalist 77:471-475, 1943.
1928 Warren, D.C. :
Inheritance of Earlobe Color in Poultry. Genetics 13:470-87, 1928. Pubmed reference: 17246562. DOI: 10.1093/genetics/13.6.470.

Edit History


  • Created by Frank Nicholas on 01 Jul 2012
  • Changed by Frank Nicholas on 17 Oct 2012
  • Changed by Imke Tammen2 on 21 Nov 2023
  • Changed by Imke Tammen2 on 29 Aug 2024