Originally Posted by syble
LOL you guys are so far ahead of me... I was at an auction tonight and picked up 3 of these:
This is what we've always referred to as a bird with 2 copies of pied, vs the tuxedo which we say has 1 copy of pied. (Ignore that it has wild type plumage, its been Tibetan spots too lol). I agree
Genetically speaking, none of my bachelors could have 2 copies of the pied gene as only one parent had it, all of the hens were solid. not mostly sold, but totally solid.- good to know and I agree with the math
I believe i got 3 girls of this wild type panda (double pied). I can test breed them to solid jumbo browns, if i get 100% tuxes(in one form or another), i suppose it will be safe to say they are double pied and tuxes result from single pied... wait a second... we need to do some math first down below.
solid jumbo browns, which we know are pure wildtype and not white splits right?
so, Wh+Wh+ Br+Br+yw+yw+e+e+pi+pi+
crossed with a recessive white (wildtype) double pied bird? leaving out the chance for any change at the yellow and red genes = wh wh Br+Br+yw+yw+e+e+PiPi
so, cross them...
wh wh Br+Br+yw+yw+e+e+PiPi
when we cross Wh+Wh+ with wh wh on the white gene, you end up with all Wh+wh which are going to be visually wildtype birds with a recessive white allele, ya follow?
move to the next Br+Br+ x Br+Br+ all birds are Br+Br+ right?
next color gene, what are the 2 alleles at the yellow loci? all will be yw+yw+ wildtype
red loci e+e+ x e+e+ all birds will be wildtype- remember we are dismissing the tibetan spots... but we could do that math too...
last gene associated with color and how it is displayed is the pied gene, and I think Syble and I both are saying the same thing, single pied gene Pi instead of pi+ at one of the alleles produces tuxes, 2 of them, produces double-pied birds "pandas", now what color displays in that double pied "layer" is another math formula altogether.
so, what will the offspring look like, of the cross double pied recessive white to solid brown, well if all the birds are Wh+wh they are going to look wildtype but they are going to carry 1 copy of the pied gene, with no other colors but "wildtype" to be displayed, but they can pass that recessive white and the pied gene to their offspring down the road a few generations until 2 birds meet up that both pass a recessive white and a pied gene to their offspring and bam, double pied white bird again.