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HYB: Color & Pattern (WAS what to do with glaciata?)

Chuck & Others,

<<glaciata. >>

I'd like clarification (for me.)

I understand that "like breeds like," but I'm always looking for
shortcuts! Plus, I have a white glaciata seedling, which bloomed in
September, from Blatant X All Revved Up. It's nice, but not
spectacular.  Should it go in the reselect bed or the compost pile?

Glaciatas appear in plicata crosses, and they are the result of the
elimination of anthocyanin. Right? The other alternative would be that
the anthocyanin is simply masked or hidden?

1) By definition, plicatas must contain anthocyanin?

2) If a glaciata contains no anthocyanin, how can they be a part of the
plicata group?

3) If they truly contain NO anthocyanin, could they pass on the
anthocyanin gene? They couldn't pass on something they don't have? (for
those of us that are not experts in genetics.) Maybe this is what
confuses me.

Is there a breeding situation in which the use of a glaciata would be
an advantage?

What breeding programs MIGHT benefit from the use of glaciatas, and
what would be the goal? Two white glaciatas might produce better clean
whites with NO haft marks?  Would that be the only goal?  Would two
white glaciatas produce all white glaciatas?  Would a clean white and a
white glaciata produce all clean whites?

In addition: I'm of the understanding that the "greyed" look I get on
some yellows, etc.. is from the anthocyanin in20the ancestry. Is there
any way, other than selective breeding, to reduce or remove the
anthocyanin from a cross (or line?)

In my LEMON REFLECTION X ALL REVVED UP cross I proved (I think) that LR
has no plicata genes to pass on to it's children.  In 150 seedlings
there were no plicatas.  ARU passed on the anthocyanin (grayed haze in
the fall overlays) but no plicatas.

Betty W.
Bridge In Time Iris Garden
Zone 6

-----Original Message-----
From: irischapman@aim.com
To: iris@hort.net
Sent: Thu, 24 Jul 2008 4:26 pm
Subject: [iris] HYB: what to do with glaciata?

I'll be a spolier here Linda.B B I doubt if this seedling is a glaciata. There is no indication of
plicata in either parent , or a record that I can find that either one
ever produced a plicata offspring.B B Were there plicatas in this cross? I didn't hear mention of it, and
without this, or a test cross with a plicata, I'll have to say there is
no evidence of it being a glaciataB Just because it is clean of anthocyanin doesn't mean it is a glaciata. Ther are lots of clean cartenoid plants that are not glaciatas.B B Also haft markings have nothing to do with plicata genetics. This is a
carry along factor often found in pliacatas, but not part of their
genetics.B B Haft markings don't distract from plicatas with all their paterns, so
it was=2
0never selected out as with other colours. so it is there , but
not part of plicata genetics. There are lots of plicatas without haft
markings, paticularly those that fall out of crosses that are not
plicatas, but carriers of genes.B B The glaciata genes are part of luminatas and many other plicata types.
The only way they make clean cartenoid coloured flowers is when there
are four glaciata genes in the plant. When with other plicata genes
they contribute to the plicata type and pattern. When not paired up as
one of four plicata genes, they do nothing to influence colour or
pattern.B B Chuck ChapmanB B B Date: Thu, 24 Jul 2008 05:16:23 -0400B From: Linda Mann <lmann@lock-net.com>B Subject: [iris] HYB: what to do with glaciata?B B Now that I have a couple of glaciata seedlings (yellow, from HARVEST OFB MEMORIES X TREASURED), I don't know what to do with them re: futureB crosses. From posts here in years past, it sounds like some of you getB excited about such things, but I'm not sure why..B B They can get rid of dark markings on hafts of yellow/pink/orange/white,B but do they have anything to do with light ground with anthocyanin veinsB B on hafty anthocyanin pigmented ones?B B In other words, is there any evidence that the genes for "plicata haftB markings" includes the white ground between the anthocyanin pigmented
veins?B =0
B Another one of my unanswerable questions?B - --B Linda Mann east Tennessee USA zone 7/8B East Tennessee Iris Society <http://www.DiscoverET.org/etis>B Region 7, Kentucky-Tennessee <http://www.aisregion7.org>B AB B ---------------------------------------------------------------------B To sign-off this list, send email to majordomo@hort.net with theB message text UNSUBSCRIBE IRISB B
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