OMIA 000380-9103 : Feathering, Z-linked in Meleagris gallopavo

In other species: chicken , helmeted guineafowl

Mendelian trait/disorder: yes

Mode of inheritance: Z-linked

Considered a defect: unknown

Key variant known: yes

Year key variant first reported: 2018

Species-specific description: Derks et al. (2018) suspect that the form of Z-linked feathering described in this OMIA entry "differs from a late feathering phenotype that was described in turkey by Asmundson and Abbott [1960]"

History: This trait was first reported by Zakrzewska and Savage (1997)

Inheritance: As in chickens, the locus is Z-linked, and slow-feathering is dominant to fast or rapid feathering (the wild type) (Zakrzewska and Savage, 1997)

Mapping: Via a GWAS of SNPs called from whole-genome sequencing of 12 slow-feathering and 12 fast-feathering turkeys from a commercial line, Derks et al. (2018) mapped this trait to "the short arm of the Z chromosome between 7.95 and 9.79 Mb"

Molecular basis: Derks et al. (2018) "identified a 5-bp frameshift deletion in the prolactin receptor (PRLR) gene that is responsible for slow feathering at hatch. All female cases (SF turkeys) were hemizygous for this deletion, while 188 controls (FF turkeys) were hemizygous or homozygous for the reference allele. This frameshift mutation introduces a premature stop codon and six novel amino acids (AA), which results in a truncated PRLR protein that lacks 98 C-terminal AA . . . this truncated PRLR protein is strikingly similar to the protein encoded by the slow feathering K allele in chicken." (see OMIA 000380-9031)

Associated gene:

Symbol Description Species Chr Location OMIA gene details page Other Links
PRLR prolactin receptor Meleagris gallopavo Z NC_015041.2 (9446225..9425540) PRLR Homologene, Ensembl, NCBI gene


By default, variants are sorted chronologically by year of publication, to provide a historical perspective.

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Breed(s) Variant Phenotype Gene Allele Type of Variant Reference Sequence Chr. g. or m. c. or n. p. Verbal Description EVA ID Year Published PubMed ID(s) Acknowledgements
Commercial lines Feathering, Z-linked PRLR deletion, small (<=20) Melgal5 Z g.9426018_9426022delTTGGT p.Glu726Aspfs*7 2018 29566646


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 Derks, M.F.L., Herrero-Medrano, J.M., Crooijmans, R.P.M.A., Vereijken, A., Long, J.A., Megens, H.J., Groenen, M.A.M. :
Early and late feathering in turkey and chicken: same gene but different mutations. Genet Sel Evol 50:7, 2018. Pubmed reference: 29566646. DOI: 10.1186/s12711-018-0380-3.
2008 Renema, R.A., Sikur, V.R., Robinson, F.E., Korver, D.R., Zuidhof, M.J. :
Effects of nutrient density and age at photostimulation on carcass traits and reproductive efficiency in fast- and slow-feathering turkey hens. Poult Sci 87:1897-908, 2008. Pubmed reference: 18753460. DOI: 10.3382/ps.2007-00431.
2004 Sikur, V.R., Robinson, F.E., Korver, D.R., Renema, R.A., Zuidhof, M.J. :
Effects of nutrient density on growth and carcass traits in fast- and slow-feathering female turkeys. Poultry Science 83:1507–1517, 2004.
1998 Wylie, L.M., Hocking, P.M. :
Comparative study of feathering in modern and traditional turkeys. Br Poult Sci 39 Suppl:S20-1, 1998. Pubmed reference: 10188025.
1997 Zakrzewska, E.I., Savage, T.F. :
Inhibited feathering: a new dominant sex-linked gene in the turkey. Journal of Heredity 88:238-247, 1997.
1960 Asmundson, V. S., Abbott, U. K. :
Dominant sex-linked slow-feathering in the turkey Poultry Science 39:1231 only, 1960.

Edit History

  • Created by Frank Nicholas on 06 Sep 2005
  • Changed by Frank Nicholas on 26 Mar 2018