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Re: Digest Number 1319

In a message dated 11/26/2000 12:53:39 AM Pacific Standard Time, 
iris-talk@egroups.com writes:

> what about the yellows that have 
> that center of violet on the falls, like Hagar's SATURNALIA?   Is that plic 
> gene letting the violet through or....

Please be aware that the plic gene, in the classical sense, affects sap 
pigments, not caratinoids. The pattern of Saturnalia is a "ring pattern" in 
which caratinoids are suppressed in the fall except on the very edges of the 
petal. This allows the anthocyanin color to display in a rather dramatic way. 
Typically the edge of the fall is the same color as the standards. This 
serves to distinguish this pattern from the Emma Cook pattern which 
suppresses sap pigments except on the edge of the fall.    
There will be an article in the March 2001 issue of Tall Talk exploring this 

Thanks to Sharon for summarizing the pigments. A good tool for anyone 
interested in hybridizing.

Fred Kerr

[Non-text portions of this message have been removed]

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