I'm glad you are enjoying my coments. Right now my ideas are theories.
There are other theories, and in order to differentiate between the
different theories there needs to be better supportative evidence. That
is in the process.
Chuck Chapman
Re: Legend of Camelot, luminata? - Chuck
Posted by: "Margie Valenzuela"
IrisLady@comcast.net
iris85737
Tue Mar 18, 2008 9:30 pm (PDT)
Thank you, Chuck. I love reading that kind of info. Have
you ever published a book, or do you plan to?
~ Margie V.
Oro Valley, AZ.
----- Original Message -----
From: irischapman@aim.com
To: iris-photos@yahoogroups.com
Sent: Tuesday, March 18, 2008 8:46 AM
Subject: [iris-photos] Re: Legend of Camelot, luminata?
The "Luminata" gene is a very tricky beast, and is not what it first
seems to be. When we see a luminata patterned iris, the assumption is
that we are seeing a homozygous iris with four sets of pl-lu genes,
but this doesn't seem to be the situation. The coresponding
assumption
is then made that the luminata gene is removing pigment from the
veins.
Actually it would appear that the luminata pattern is a combination
of
glaciata genes and luminata genes. Almost all crosses of luminata x
luminata produces some glaciata offspring. What I suspect is
happening
is that the luminata gene is putting down the pigment and the
glaciata
gene is trying to remove pigment and it starts with the veins and
works
out from there. Based on this, I have a sneaking suspicion that a
homozygous luminata plant would be very very close to being a solid
colour, or perhaps a solid coloured flower. I have gotten some solid
coloured flowers from some of my luminata closses and I'm still
trying
to sort out all the genetics involved. Corespondingly
Luminata-plicatas
sem to have one gene each of luminata, glaciata and regular plicata
plus one extra copy of one of the other genes. The other , fourth
gene,
can sometimes cause the seedling to have a solid colour, that is have
four plicata genes, but not show any plicata markings. I'm still
trying
to work out all the details of this.
I do have a work in progress article on all this that I can send to
people if they wish to pursue this further, but it is not light
reading. Contact me off line if you wish to get this article.
Chuck Chapman
