Chromosome Linkages Table
The following linkage map table is based on the following books:
1. Crawford (ed.) (1990) Poultry Breeding and Genetics.
2. Stevens, L. (1991) Genetics and Evolution of the Domestic Fowl.
3. Muir and Aggrey (ed.) (2003) Poultry Genetics, Breeding and Biotechnology, CABI Publishing.
# All hashed data is from the last book (Muir & Aggrey), & is based on the following quote from this book (page 499):
The classical linkage groups I, IV and Z correspond to chromosomes 1, 2 and Z, and linkage group II to linkage group E22C19W28. These results also clearly show that several of the linkages reported in the past are incorrect. For example, naked neck and blood group P are located not on chromosome 1 (linkage group 1) but on chromosome 3 and extension of eumelanin (MC1R) is not located on chromosome 1 but located on microchromosome 11 (Takeuchi et al., 1996; Sazanov et al., 1998; Kerje et al., 2003, unpublished).
-Note, the recessive white locus (Tyrosinase) map reference is from Dr Ron Okimoto (pers. comm.)
*Recent sequencing of the yellow skin allele:
Eriksson J, Larson G, Gunnarsson U, Bed'hom B, Tixier-Boichard M, et al. (2008) Identification of the Yellow Skin Gene Reveals a Hybrid Origin of the Domestic Chicken. PLoS Genet 4(2): e1000010. doi:10.1371/journal.pgen.1000010
Quotes from the above article:
....yellow skin was previously assigned to chromosome 24.
An examination of this chromosomal region revealed an obvious candidate gene for yellow skin, BCDO2 located at position 6.26–6.29 Mbp.
*Due to the above information, I've included w locus on Microchromosome 24 (*) in the table below. It is obvious from growing discrepancies in data below that the old Linkage Maps in Crawford, etc (which most of the table below is based on) are outdated and need significant revision.
E, ER, ER- Fay, eWh, e+, eb, es, ebc, ey, eq |
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E Series |
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