Peafowl... Genetics Question... thanks for the help...

[texascowboy1979]

HI... I have a few Peafowl Genetics Questions and I was hoping you could help me... If any of these are sex linked... please let me know and for what sex...

Here are what My questions are...

Pied Male to Pied Female = ??? 25% Dark Pied, 50 % pied, 25% white... Correct?
Pied Male to Cameo Female = ???? What about F2? How do you get a Pied Cameo?
Pied Male to White Female = ???

Green Peafowl male to IB peafowl, White, Cameo, or Pied Females...

Any help is greatly appriciated...

Next year my Peafowl should be ready for breeding... and I wanna get my facts straight...

Andres

 

[deerman]

1. Correct

2.blue pied male X Cameo hen= all blue chicks split pied ,males split cameo.( if these are mated together you will get some cameo pieds hens, and some pied males split cameo)

3. 50% pied 50% white

4. spaldings , split to color of hens, except cameo then only the males will be split cameo


Cameo is sex link, no hen can be split to sex link colors.

 

[texascowboy1979]

Quote:
Ok... I'm still a bit confused on the Blue Pied Male and Cameo Hen... My goal is to get Pied Cameos male and females... so...

All the chicks in this batch will be split to Blue Pied... Correct?, regardless of sex.... correct? and they will look like regular IB Peafowl... Right?

All the male chicks will be split to Cameo which means the males carry the cameo GENE.. ONLY, correct??? and all the Hen chicks will NOT be Split to Cameo and will not have the Cameo Gene?

So how do you get a cameo hen? What gene is the cameo on? I assume it's on the male Gene? I understand the genetics part, but I'm lost on the Cameo Sex Link...

SO if I breed the offspring Male to an Offspring Female, I will get Pied Cameo Hens, and Pied Males that are split to cameo but no cameo Pied Males?

 

[Kev]

Yes, look like blues and only the males will have the cameo gene in them. Females always are IT or NOT at all for sex linked genes.

This is because cameo happens to be located on the sex chromosomes. In birds, males are XX and females XY. The Y chromosome is much smaller than the X, have much less genes on it. Could look at it as Y having parts of it cut off, so chunks of it are "missing".

The Cameo gene also happens to be located on the part of the X that is "missing" on the Y. This is why a male can be split for cameo, if one X does not have cameo gene on it but the other X has it.. females only have one X.

The cameo hens in second generation will have come from the males that are split cameo, these will throw 1/2 cameo daughters. If you want male pied cameo, breed the pied cameo daughters back to their fathers or another split pied & cameo male.. half of the chicks in both sexes will be cameo and part of them will be pied too.

Slight addition: pied with patches of white actually are genetically pied x white, this is why they do not breed true in this form. So pied x cameo will actually throw 1/2 split pied, 1/2 split white. Other breeders have said that generally split pieds don't show any white and split whites generally show some white on wings/chin. Be good idea to keep both, in case if this is very reliable for telling which is split for what.. you'd want something like a male with no white and females showing white or vice versa to get the splashy pied babies. Otherwise there may be chance of getting all split whites by choosing only those that show white.. never get pied out of that.

 

[NateinFL]

"If a cameo male is bred to a blue female, the male offspring will be cameo and the female offspring will be blue."

This is from the UPA website. So does this mean that cameo is a dominant mutation? If the male birds get an X from both the mother and the father, and according to the quote the mother is a Blue, I would think that the males would not be showing the cameo as the dominant Blue would overrule. I was thinking that the males would all be Blue, and that 1/4 the females would be Blue and 1/4 the females would be Cameo. It's already confusing enough that in the bird world, Females are XY and males are XX.

 

[Kev]

That was wrong.... where did it say that?

Cameo male x Blue female= all sons blue split for cameo. All daughters will be *cameo*.

You got close.. the daughters get their X only from their father.. since the Cameo father is 'pure' for cameo then he passes it down to all of his offspring. The female offspring get only one X, from their father.. the result is they're Cameo. Sons also get X from their mother, so if mother is Blue, they will be blue split cameo.

Cameo is sex linked recessive. That is why only the daughters in this mating are cameo.... if it were dominant, then ALL offspring in both sexes from a Cameo cock would be cameo.

 

[deerman]

Quote:
Cameo Male X Blue peahens = males blue slit cameo and all females will be cameo.

Can't produce any cameo peacocks without a cameo peahen.

Yet you can produce cameo peahens without a cameo peahen, just need a male cameo or one split to cameo.

Double check UPA site, wouldn't think ,they would post wrong info.........

 

[NateinFL]

Quote:
I REALIZED THAT as I was thinking over it last night lol, its like sex-linked chickens.

http://www.peafowl.org/ARTICLES/12/

3rd paragraph up from the bottom talks about cameo as I was researching it last night, I knew something was wrong as what was being said on here and what I got from the article just didnt add up! Glad I wasn't really losing it

-Nathan

 

[texascowboy1979]

Is there a book that goes into detail about peacock genetics including sex-links... I understand Genetics just fine... but sex links always throw me off...

I went to that article posted on the post above this one... and it says there can be no female cameo.. and thats a lie... I have a female cameo...

So who's right?


photos on this specific post were removed because they were wrong... I upload again the correct photos on page 2...

 

[Kev]

The article above is an oopsie. It's also very old. Disregard it.... Cameo has been proven 100% to be sex linked. No debate about it.

The pictures in your post are wrong.. in birds it is reversed, males are XX and females XY. It is why it is females that come up with the sex linked color in certain matings. And also why female birds cannot be split for a sex linked color. Super technically, birds are ZZ and ZW but don't let that confuse you.. the concept is still the same(in case you look it up and see ZZ and ZW).

I will make something in Paint to help show the illustration but will have to do that later tonight. For now, reverse the sexes in those pictures.. insert a male bird by XX and female bird by XY.