Re: RE:HYB pink genetics

--- In iris-talk@y..., irischapman@n... wrote:
> --- In iris-talk@y..., neilm@c... wrote:
> > --- In iris-talk@y..., irischapman@n... wrote:

. What I'm struggling with > is, Is the reduction of anthyocyanin due 
to the dominat gene or the recessive genes..?  ...was trying to get 
data from other peoples experience. Counts/results of crossess that 
would help to differentiate..."

I must have been half asleep when I read your original post. I 
misread what you were asking.  My apologies.

I discarded my stud books a long time ago, but I have a clear memory 
(no counts) of a few specific crosses that may contribute some dim 
information.  In one of my first crosses for pinks I used SQ 72 on 
one of the early Hall pinks (44-something, I think) and all of the 
seedlings--about 30, I believe--were pale pink, very late blooming, 
and very tall with small bloom.  No white, no violet.  SQ-72 (Pikes 
Peak Pink) was probably dominant "I" non-violet, being from 
Purissima, a dominant white.  The same Hall seedling in another cross 
produced a range of pale pink to apricot to yellow with tangerine 
beard, again no violet.  There were about twenty seedlings in that 
cross.  Another cross from about the same time produced half violets, 
half pinks, and the seedling parents in this cross were both pink.  
The large proportion of violet seemed puzzling.

In a cross from Rippling Waters x Sanctus (which was from (Peggy x 
Pink Enchantment) X Fleeta ) there were no violets, but the progeny 
was not large, counting less than a dozen.  Rippling Waters was light 
violet, tangerine beard.  Sanctus was from a cross that I do not 
remember producing any violets in a progeny that numbered nearly one 
hundred.  The Peggy x Pink Enchantment seedling was pink, and I 
assumed it to be "I", as I believe Fleeta was also.  The grandparent, 
Peggy, had some violet color blended into the pink. It may have been, 
however, still "I."

In order to sort out the genetics, I selfed Sanctus, more than thirty 
pods, but never saw the bloom of the progeny.  My iris growing ended 
between conception and germination of that cross.

Digging into the ancestry of the early pinks, particularly D. Hall's, 
there one finds mostly blends, (Morocco Rose, and similar materials) 
which would be non-I, but some "I" present as in W. R. Dykes, and 
thus in Golden Eagle.  The distributed 42- and 44- level "pinks" 
acted like dominant whites.  Fantasy, violet visible, came early in 
his line, and Mary Randall not many years later.  I always assumed 
these were "i", dominant Inhibitor dropped out.

Neil Mogensen 


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