RE: Hyb-Pigments

Pigment distribution is generally seperated into oil and water base and its generally its true that never the two should mix. Howerever I have seen exceptions that are very intriging. Red on white plicatas and such things such as red striped on white as in MTB have both yellow (oil) and blue (anthocyanin, water base) pigment distributed anong the same channels. Allthough thisain't so according to what  we know, its definatly true. I've done pigment extraction and also seen  enough of the petals where one pigment is repressed to confirm this. I also have several series of photos showing this in past posts to Iris Photos. 
I have also seen a good number of SDB plicatas of both my own and a few from Paul Black that show some blue ground plicatas. I have been refering to these as plicata independent anthocyanin. At this time I'm chasing down the posibility that there is a fourth plicata allele that looks much like the regular plicata allele but effects pigment distribution somewhat differently. I'm suspecting this allele to have come from Iris variagata.  Test crosses and pigment research procedes. The yellow pigment that is distributed with anthocyanin may may be a water based pigment such as one of the flavanoids.

-- 
Chuck Chapman, Guelph, Ontario, Canada. Zone 4/5


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