Re: HYB: rebloom genetics
iris@hort.net
  • Subject: Re: HYB: rebloom genetics
  • From: L* M* <l*@lock-net.com>
  • Date: Fri, 14 Jan 2011 18:27:40 -0500
That's the one I was referring to. Not sure which study Chuck meant - he mentioned something about it not being entirely white?
But it wasn't just a cross of two dark petunias - seems like they 'shot' a gene for dark pigment into the nucleus of a dark parent, trying to double the genetic potential. So really not at all comparable to doubling a dominant gene in a hybrid sort of tetraploid like a TB. I was just posting some disconnected thoughts about doubling dosages of genes.
But we were talking about 'defects' in normal blooming behavior, so I guess an iris might react to multiple doses of a dominant defect as something different.
<Chuck: I have not seen all of this thread, but I think you are refering to the petunia study where two dark colored petunias where crossed trying to get a very dark to black petunia and the result was white. The explanation was that in trying to produce too much of the color the cells thought this was a virus or some malignancy and in defense they shut down the pathway altogether. Bob Pries> 

Linda Mann east TN USA zone 7

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