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Re: RE: OT Plant cell biology - red


Dave

Nice to think that Molecular Biology can produce a red iris. However if the
reverse process of procuding a truly blue rose is anything to go by, it
won't happen that easily. The blue rose project has had milliions of dollars
thrown at it.

Colleen Modra
Adelaide Hills AUST
zone 8/9


----- Original Message ----- 
From: <DFerguson@cabq.gov>
To: <iris@hort.net>
Sent: Sunday, January 16, 2005 5:59 AM
Subject: Re: [iris] RE: OT Plant cell biology - red


> I find it interesting that there is intense pure red in other Iridaceae.
> This means that other genera not distantly related to Iris already have
the
> means to produce the red anthocyanins.  It would be interesting to know if
> this is something inherited and shared between these Irid genera, or if it
> something that has been reached independently several times.  Either way,
> it would seem to give some hope to the Iris breeder.
>
> I'm with you Neil on the idea of reaching in and grabbing the genetic
> material responsible and sticking in an Iris cell.  It really isn't that
> far fetched, just a matter of technology, perseverance, and so on.  It's
> been done with other genes.  Hopefully it could be done in such a way that
> it doesn't mess other things in the genetic code up (of course that could
> have interesting results too).  Might be kind'a cool to have a bearded
Iris
> with a Gladiolus stalk (or corm), or perhaps with the zonal coloring of a
> Tigridia.
>
> Can't help wondering if something like Tigridia might not be genetically
> close enough to (some) Iris to simply hybridize the genes into at least
> some Iris. [[probably not]]
>
> Now to a related question.  The lycopenes in some Japanese Iris have been
> pointed out through a few venues recently, but I have no idea what those
> cultivars look like.  I am not aware of any red Japanese Iris.  The
closest
> that I know of to red in wild Iris are some markings on certain yellow
> species, and I. fulva.  In both cases decidedly brownish.  Do these
> Japanese Iris express the red color of the chemicals mentioned? (I'm
> assuming not, based on the conclusions and chemistry in Rick Ernst's
> article.)
>
> I have to admit that an orange-red Iris in the realm of a tomato sauce
> color would not be a bad thing, just not quite truly red either.  It would
> certainly stand out in the garden!
>
> Dave
>
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