[Trillium-l] GREEN

J.E. Shields jshields at indy.net
Mon May 9 20:55:26 CEST 2011

Hi Russ and all,

I will offer a couple of thoughts on green petals in Trillium or any other 

I would hypothesize that two genetic changes are needed to get a clean 
green color in the petals of any but a white flowered species:  1. a 
genetic change to suppress the normal pigmentation; and 2. a genetic change 
allowing chloroplasts to develop with chlorophyll in the petals.  In fact, 
and in my profound ignorance of how these things are regulated, it might be 
on and the same change, acting at two separate genes.

Some breeding experimentation is clearly called for.

Jim Shields

At 08:09 AM 5/9/2011 -0700, you wrote:
>This is NOT about me being green with ENVY when I see pictures like Jim's 
>of interesting Trilliums...
>This is a return of sorts to "questions" about color of petals and the 
>possible genetics to consider for selection purposes.
>Several of you were very responsive and helpful when the topic was YELLOW 
>and I am wondering if anyone has any thoughts, observations or experience 
>with GREEN flowered Trillium.
>Kindest Regards,

Jim Shields             USDA Zone 5
P.O. Box 92              WWW:    http://www.shieldsgardens.com/
Westfield, Indiana 46074, USA
Tel. ++1-317-867-3344

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