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Re: Re: HYB: ?heredity of orange question(s)

  • Subject: Re: Re: HYB: ?heredity of orange question(s)
  • From: Paul Archer <pharcher@mindspring.com>
  • Date: Sun, 4 Jan 2009 08:38:10 -0500 (GMT-05:00)

Lycopene is recessive to orange and orange (as well as pink) is recessive to yellow.  Pigment pathway is lycopene converted to orange then converted to yellow.  The issue that is really in play (in theory) is the tetraploid factor.  All can be present is various dosages and have intensifiers and distribution factors. 

-----Original Message-----
>From: Linda Mann <lmann@lock-net.com>
>Sent: Jan 4, 2009 7:20 AM
>To: iris@hort.net
>Subject: [iris] Re: HYB: ?heredity of orange question(s)
>So, Chuck, Paul, are there three full recessives that can combine to 
>give various shades of orange (tangerine factor (pink) carotene pigment, 
>partially changed tangerine carotene yellow pigment, and a separate, 
>unchanged (partially changed?) tangerine carotenoid orange pigment)?
>Resulting in a hierarchy of colors (sort of like the plicata locus 
>Or does each color represent <one> set of identical recessive genes?
>If all of these colors are derived from carotene, via some kind suite of 
>screwy partial conversions, I guess I don't know how to estimate the 
>probability of getting orange seedlings from this cross.  Intuition says 
>there could be some, but I think I don't have enough information to do a 
>punnett square.
>I knew the tangerine part was recessive but wasn't sure about the yellow 
>part.  & didn't realize there was known to be a separate orange pigment.
>I am definitely beyond the limits of what I can figure out... but it 
>isn't stopping me from trying.
><The apricot  and peach are slightly different genetically.>
>Linda Mann east Tennessee USA zone 7/8
>East Tennessee Iris Society <http://www.DiscoverET.org/etis>
>Region 7, Kentucky-Tennessee <http://www.aisregion7.org>
>American Iris Society web site <http://www.irises.org>
>talk archives: <http://www.hort.net/lists/iris-talk/>
>photos archives: <http://www.hort.net/lists/iris-photos/>
>online R&I <http://www.irisregister.com>
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