
Description:
The smoothing gene is a proposed gene by the author used to explain the differences in rose comb phenotypes. It is unknown and untested, though it has been mentioned in passing in a few different genetics registries, and is believed to exist by several longstanding APA breeders. The following is a theory currently being tested by the author.
The smoothing gene would be responsible for creating the flat rose comb seen on Wyandottes and a few other breeds. It is believed to smooth the larger bumps and ridges in the typical rose comb seen in Hamburgs and other breeds, and overall create a flat leader that follows the skull, though this could be a separate gene or just selective breeding. It would also likely play a role in the strawberry and walnut comb seen in several chicken breeds, compared to the typical cushion comb. It is likely incomplete dominant or completely recessive, leading to some variation in the breeds
More research needs to be done across the board to confirm the existence of this mutation, inheritance, and other traits. For this reason, there is not "breeding with" section of the smoothing gene nor a list of APA breeds that are accepted with the gene.
References & Further Reading
Gallery of Images



