I'm just not sure peach is purple and cameo......if peach carry cameo.....then you would think as many peach and purple ...i would have produce a cameo........NEVER.
i do have one peach silver pied peacock.......and a cameo bs silver pied hen.
i understand the sex link colors and how they work...i just don't know the peach is purple /cameo....don't think that is fact yet......
Peach IS Purple Cameo. It was the original breeder's intention to combine the mutations, and he succeeded. He didn't understand how it could happen, but I explained that linked genes can separate and recombine during meiosis -- this is a well-documented fact that is taught in high school biology. And frankly, the Peach phenotype shows characteristics of both the Purple and Cameo phenotypes together.
I can't clearly understand incomplete sentences, and I'm not sure what pairings you used that "never" produced a Cameo -- it's likely that the pairings you had simply couldn't. Unless you state what the pairings were, I can't comment about whether a Cameo offspring was possible or not. But if you're wondering what pairing can result in a few Purple and Cameo hens using Peach, it would be:
BLANK split to Peach Male X ANY female
The BLANK in this case would be any non-Purple, non-Cameo, non-Peach color (IB, Bronze, Midnight, etc).
In order for the Purple and Cameo genes to separate out again, there must be a homologous chromosome with neither mutation on it. This can occur only in males (females have only one Z). Thus you need to use a male with one "normal" Z chromosome, and one Z with "Peach" (i.e. Purple and Cameo) on it. I've already read accounts from breeders (even in this forum!!!) who used males split to Peach and got Purple and Cameo daughters.
Another test would be getting Purple Males from a Peach father -- since Males need two copies of Purple (one from each parent), Purple sons from a Peach father MUST be inheriting a copy of Purple from Dad, which means Dad MUST have at least one copy of Purple to give. The same would go for Cameo sons from a Peach father, regarding their need for a copy of Cameo from each parent.
Frankly, I don't understand why this is such a controversial issue. The phenomenon is well-studied in many other species, the original breeder had the goal of combining the colors, and the model of inheritance indicating that Peach arose as a spontaneous mutation does not fit with actual breeding results. And no one provides evidence that it IS a separate gene -- people just keep quoting dogma in knee-jerk responses.
When I first mentioned this, people said "how is that possible?" and I answered that question. Then they said "there is no proof" and I responded with breeding results that don't fit the "new mutation" model. But people here seem to have memorized some false "rule" that "colors" are somehow inherently different from "patterns" with regards to genetics and refuse to acknowledge evidence to the contrary. So now I ask -- what further "proof" is required? Just let me know, and I'll figure out how to get it for you.
