Re: HYB: color patterns for dummies

--- In iris-talk@y..., Linda Mann <lmann@i...> wrote:
> Wow - let me repeat this to make sure I got this straight - amoena 
and variegata are genetically the same, the difference being the 
yellow ground"

Yes.

Linda asked further: "Are we talking about recessive amoenas?  Does 
that mean the variegata pattern is recessive also?"

Depends on which part of the genetics you are asking about.  The 
only "recessive" involved in the Wabash-type amoena is the WHITE 
part.  The fall pattern in violet is dominant--with a vengeance.
What happens in crosses of a "Wabash" amoena with a blue self is a 
neglecta.  

A "variegata" in tetraploid TB's cannot be a DOMINANT white with 
yellow, I believe, as the "I" does affect the pigment of the fall 
pattern.  The pattern may still be evident, mostly as very messy 
hafts, I suspect. I could be wrong about this--but don't think so.

Crossing a blend (yellow+violet or blue) with a variegata (of the old 
type) would give bicolor-blends mostly, with occasional segregates of 
variegatas, though perhaps not until the second generation.  So you 
could call a variegata "recessive," in the sense that to drop out the 
violet part of the pigment IN the petal, you have to have the white 
recessive to blue, but to keep the yellow, that is dominant, and to 
have the fall overlay, that is dominant also.  But to have the fall 
overlay be SOLID and clean, that takes sorting, probably 
accumulations of recessives.  I know the good ones were few and far 
between.  Most of the approaches were just plain coarse.

Neil Mogensen


 

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