Cameo or Peach?

Hmmm, lets see if I can explain this as it was explained to me. The fact that Cameo is sex-linked tells us that the gene for that particular color is found on the sex chromosomes, the fact that Opal is not sex-linked tells us that the gene for that color is probably not located on the sex chromosomes. The fact that the genes for the 2 colors are located on different chromosomes means that a sex-linked color hen should be able to carry genes for a non-sex-linked color. If she is carrying both there is the chance they could blend as opposed to one being dominant and hiding the other.  As Taupe is said to be a result of Blue and Purple, it would be a blending of the 2 colors, one sex-linked and one not sex-linked. Anyway, I believe I relayed that explanation accurately, if not @AugeredIn
  or @Arbor
 will be able to amend it.


Ok, blending, or colour combos. Sex-linked colours cannot be combined with other sex-linked colours unless there is crossover in the genes during meiosis or mitosis - can trembler which is witch:p. They can, however be combined with the other colours. If, as in our example of opal cameos, a cameo male that carries an opal gene is mated to an opal hen, there is possibility to hatch hens that are carrying two copies opal and one copy cameo. Since one copy of cameo is needed for a hen to be cameo, and two copies opal are required for a hen to be opal, you now have the makings of a new colour because one colour is not dominant over the other (in theory). Taupe is most often theorized as being opal and purple combo.
 
Is it possible the birds have some Spaulding blood? Spaulding Cameos and Peaches are darker than their respective IB versions.

:)
 
Ok, blending, or colour combos. Sex-linked colours cannot be combined with other sex-linked colours unless there is crossover in the genes during meiosis or mitosis - can trembler which is witch:p. They can, however be combined with the other colours. If, as in our example of opal cameos, a cameo male that carries an opal gene is mated to an opal hen, there is possibility to hatch hens that are carrying two copies opal and one copy cameo. Since one copy of cameo is needed for a hen to be cameo, and two copies opal are required for a hen to be opal, you now have the makings of a new colour because one colour is not dominant over the other (in theory). Taupe is most often theorized as being opal and purple combo.

For crossover (during meiosis) to occur, you must begin with a male that has one copy of each sex-linked mutation. In peafowl, that would work with a male IB split to Cameo and Purple. Breeding such a male to ANY female (even a pure IB) will result in a small number of female Peach offspring. How frequently crossover occurs and links two mutations will be dependent upon how far apart they are on the chromosome -- the further apart they are, the more possible areas for crossover to occur.

To combine a sex-linked mutation with a non-sex-linked mutation, cross a male visual for one color with a female visual for another -- it doesn't matter which parent is visual for the sex-linked mutation. Sons from this pairing will be split to both mutations. If he is then bred to a female visual for the non-sex-linked mutation, 1/4 of his daughters will be visual for both mutations. As an example, take a Purple and mate with an Opal (either way). Take a son from this pairing and breed him to an Opal hen. Of his daughters, 25% will be IB split to Opal, 25% will be Opal, 25% will be Purple split to Opal, and 25% will be Opal-Purple.

:)
 
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By the way, when Brad looked at these pics, he said the india blue male is split for peach, he is right, and he said his clue was the orange color on the wings! I didn't know split birds will show some odd color!!

 
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That would be great, i'm planning of getting india blue hens for him since these cameo hens will be moved to the cameo pen.

Even with IB hens, you'll get some Peach daughters, and a Purple and/or Cameo daughter here and there.

Note -- Purple and/or Cameo daughters from this pairing would not be genetically possible from an IB split to Peach father UNLESS Peach is genetically Purple-Cameo. And others have already posted that they got these results, so in light of evidence, the Inheritance of Peach can be explained ONLY as being genetically Purple-Cameo. Just a friendly reminder to those who still deny this, or that Combining Colors is even possible.

wink.png
 
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I throw this out there for your comments Christopher. There are actually many combinations of colors that have been worked on and exist and way more work has been done with combining sex linked colors than is published. There is now some thought that "crossover" really occurs much more frequently than one would be lead to believe or that the chromosome contributed by a male bird is actually composed of portions of both male chromosomes instead of a single chromosome. Do you follow? This would mean that a bird could be easily split to two sex linked colors.
 

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