Re: HYB:Anthocyanin-Controled crosses.

The combination of the anthocyanin dephinidin with the yellow pigments change appearance of the colour. Dephinidin on a white ground is blue ( i'm not making distictintions between indigo etc , just between purple and "blue") while with carenoid yellow is purple . On a pink ground it is a rosy violet. You need to read what is the combinations that you are looking st. Thus some hot water extractions until you can see and understand the disctinctions for yourself.
AVI is seperatly inherited from the soluble delphinidin. Thus you can have AVI without watersoluble pigment. AVI with cartenoids give a mustard like or olive colour depending on intensity of pigments present (warning this is a best guess based on what I currently understand, no experimental confirmation). Without cartenoid resent probably can give the purple you see in white Mutant etc.
AVI plus delphinidin and no cartenoid, also gives purple, but a dark purple. Plus cartenoid gives black.
Cartenoid is dominant over non cartenoid (usually) . That is cartenoid (yellow or pink ) crossed to a blue (no cartenoid) produces purple (regular, not deep purple). This is ignoring recessives. All will be purple if the pink (or yellow) has anthocyanin is removed by recessive reduction of anthocayanin (wwww) or half yellow half purple if removed by "I".
I have found some cultivars with water soluble yellow. Sea Quest has water soluble yellow in standards. A couple of yellows with very smooth hafts have water soluble yellow as well as cartenoid yellow. But generally there ae not many TB cultivars with water soluble yellow.
Think of Dusky challenger as a schreiners blue with AVI added. They are seperate factors. But are needed together to produe dark purples and blacks. 

Chuck Chapman





Date: Fri, 8 Aug 2008 14:06:29 -0700 (PDT)
From: christian foster <flatnflashy@yahoo.com>
Subject: Re: [iris] HYB:Anthocyanin-Controled crosses.

Wow Chuck,
that is a really nice run down... clear, concise, and answers the
question I thought I asked.
Just one little fuzzy-ness.  You said "blues" are
not AVI but then said Dusky Challenger is likely AVI. I expected DC would be (even if it's a guess) AVI, but it sounds like you're saying DC isn't blue- isn't blue as in isn't from a long line of Schreiner's blues. Am I missing something? I remember someone saying roughly, "there is no true blue in iris, if you really look even the bluest blues are really quite indigo." Is that 
what you mean?
Now I feel like I should get out RHS color key and discuss what
counts as a "pastel" yellow. Can't as I don't have RHS color whozits... but 
the temptation is there.
Your general guidelines seem to be exactly what I
need to start in the "right" direction to test my theories... but I've already 
culled a seedling I should have kept.
Christian

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