But, if You watch at the Pinta phenotypes You can find the pile phenotype in black and red. Therefore my question ...
I will try to get in contact with Dr. Orozco, to ask him, what he think about the I-locus hypthesis of I^pi I^mo and I^jubilee
Jubilee is considered to be heterogeneous I/i
In this Study i/i x I/I produce all Jubilee (I/i)
and I/I x I/i produce all Whites, so the question is, why You can breed Jubilee/Exchequer over generations - even if they are theoretically I/I again since long time??
Therefore I believe that Jubilee or pied could be a mutation of I (with leakage) or can it explained on polygenic way?
Do mottling (mo) or pied (pi) or Jubilee produce a leakage in I -if mo, pi or Jubilee is homogeneous?
If that is true, then Jubilee should be also a mutation, which cause leakage in I - right?
But in other crossings the backcrosses show white phenotype after a few generations.
Therefore the question is, that why pile, Exchequer or Jubilee doesn't disappear over many generations, when You can expect, that the White is pure/hom I/I again?
Where is the difference between the backcrosses of Paint/Jubilee and Non-Paint/Non-Jubilee birds with I/I birds, that the first could be Paint or Jubilee again after F2, but the last can be selecteed back to White(I/I) after F2?
http://documents.kippenjungle.nl/#post13So far we know - if mo or pi is heterogeneous, the Phenotype is white, even in I/i birds.