I love this discussion... I remember going around this topic over and over and over with "big jack bronson" years ago...
Z-
last year I did an axanthic white side to a snow female, expecting to get all axanthics that would be double heterozygous for ws and albino, on the path for a ws snow.
When the eggs hatched I got some nice purply axanthics, like I expected, but I also got a bunch of normals, totally unexpected.
So while I can't prove it, ( maybe the ws gene messed things up or ???) I suspect that there is a different axanthic gene/allele/locus/ hocus pocus in there between the ws axanthic and snow.
As far as terminology, Rainer, I give you all the credit in the world for the work you do. But I think it is more confusing to say axan/anery when differentiating between lines of the same trait. All show a lack of yellow pigment, regardless of what allele the trait resides on and cross compatabilty. None show a lack in red pigment, including het offspring ( can you prove a negative?). I like what the corn folks do type a,b,c.... at this point,there is no way to test for anerythrism in floridana as there is no 100% consistently red phenotype that is demonstrably genetic (like there is in corns)- dominant, recessive, codominant, sex linked, wild type...the only observed linkages are to hypomelanism, a legit floridana trait, and to the x-o albinos, not necessarily a legit floridana trait. And as we know, these links are anything but 100%. Also, look at the production of red bulls. Does anyone have that figured out yet 100%?
And for dessert, as far as red in normal hatchling floridana- I will have to do some digging to source this but- as in some birds, the appearance of red is linked to diet. Ever see an ibis or flamingo at a zoo on a low carotenoid diet? Somewhere I have read that dietary lipid content affects the function or production of erythrophores. We know the diet of snake hatchlings in the egg is predominately phospholipids (- which amount may vary from egg to egg so may be why some in a clutch are reddish and siblings aren't). Once they come out, we feed them pinkies that are predominately water and lipids. As the snake grows and eats prey that is proportionately less lipid, the red starts to go away...think about that?
merely my .002.
but go ahead, prove me wrong, hahahaha....
daveb
This pic is of the axws x snow that I did last spring.
