OMIA 000839-9031 : Ptilopody (Feathered shank) in Gallus gallus

Mendelian trait/disorder: unknown

Considered a defect: yes

Species-specific name: Shank feathering; feather-legged; feathered feet (Somes, 1990)

Species-specific symbol: Pti-1; Pti-2; pti-3

History: The first published report of this trait was by Hurst (1904). Other early reports were by Davenport (1906, 1909) and Punnett and Bailey (1918).

Inheritance: Up to three separate loci have been postulated to explain the inheritance of this trait, with the trait being due to dominant alleles at two loci and a recessive allele at the third locus; hence the symbols Pti-1, Pti-2 and pti-3 (Somes, 1990). If more than one locus is confirmed, separate OMIA entries will be created for each locus. At present, the jury is still out.

Mapping: Dorshorst et al. (2010) tentatively mapped one ptilopody locus to 15.6Mb on chromosome GGA13.


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.
2015 Sun, Y., Liu, R., Zhao, G., Zheng, M., Sun, Y., Yu, X., Li, P., Wen, J. :
Genome-Wide Linkage Analysis Identifies Loci for Physical Appearance Traits in Chickens. G3 (Bethesda) 5:2037-41, 2015. Pubmed reference: 26248982. DOI: 10.1534/g3.115.020883.
2010 Dorshorst, B., Okimoto, R., Ashwell, C. :
Genomic regions associated with dermal hyperpigmentation, polydactyly and other morphological traits in the Silkie chicken. J Hered 101:339-50, 2010. Pubmed reference: 20064842. DOI: 10.1093/jhered/esp120.
2003 Sawyer, R.H., Knapp, L.W. :
Avian skin development and the evolutionary origin of feathers. J Exp Zool B Mol Dev Evol 298:57-72, 2003. Pubmed reference: 12949769. DOI: 10.1002/jez.b.26.
1993 Shoffner, R.N., Otis, J.S., Garwood, V.A. :
Association of Dominant Marker Traits and Metric Traits in Chickens Poultry Science 72:1405-1410, 1993. Pubmed reference: 8378215.
1992 Somes, R.G. :
Identifying the Ptilopody (Feathered Shank) Loci of the Chicken Journal of Heredity 83:230-234, 1992. Pubmed reference: 1624770.
1990 Somes, R.G. Jr :
Mutations and major variants of plumage and skin in chickens. In "Poultry Breeding and Genetics" (ed. R.D. Crawford), Elsevier, Amsterdam; Chapter 6 :169-208, 1990.
1971 Goetinck, P.F. :
Genetic tests on the association of brachydactyly and ptilopody in fowl. J Hered 62:28-30, 1971. Pubmed reference: 5094713.
1967 Goetinck, P.F. :
Tissue interactions in the development of ptilopody and brachydactyly in the chick embryo. J Exp Zool 165:293-300, 1967. Pubmed reference: 4292956. DOI: 10.1002/jez.1401650213.
1954 Saeki, Y. :
Inheritance of shank feathering (ptilopody) in silky fowl Bulletin of the National Institute of Agricultural Science, Japan, Series G :43-47, 1954.
1949 Warren, DC. :
Linkage Relations of Autosomal Factors in the Fowl. Genetics 34:333-50, 1949. Pubmed reference: 17247319.
1938 Fisher, R.A. :
Dominance in poultry - Feathered feet, rose comb, internal pigment and pile. Proceedings of the Royal Society, Series B: Biological Sciences 125:25-48, 1938.
1926 Serebrovsky, A.S. :
The genetics of the domestic fowl. II. The genetics of leg feathering. Memoirs of the Anikowo Genetical Station, 1926. [Abstracted by L. C. Dunn from the translation of B. F. Glessing] Journal of Heredity 20:111-118, 1926.
1918 Punnett, R.C., Bailey, P.G. :
Genetic studies in poultry. I. Inheritance of leg feathering Journal of Genetics 7:203-213, 1918.
1909 Davenport, C.B. :
Inheritance of characteristics in the domestic fowl Washington, D.C.: Carnegie Institution of Washington. Publication 121 :1-100, 1909.
1906 Davenport, C.B. :
"Inheritance in poultry". Washington, D.C.: Carnegie Institution of Washington. Publication 52. :1-136, 1906.
1905 Hurst, C.C. :
Experiments with poultry. Reports to the Evolution Committee of the Royal Society II:131-154, 1905.

Edit History

  • Created by Frank Nicholas on 06 Sep 2005
  • Changed by Frank Nicholas on 06 Jul 2012
  • Changed by Frank Nicholas on 24 Nov 2012