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Re: hosta-open DIGEST V1 #419

  • Subject: Re: hosta-open DIGEST V1 #419
  • From: halinar@open.org
  • Date: Wed, 18 Sep 2002 23:10:28 -0700 (PDT)

Ben:

>know by now that pure white flowers as found in H sieboldii alba and 
>its derivatives like Snow flakes are a simple, recessive, mendelian 
>factor.

In most plants the presence/absence of anthocyanins is controled by 
dominant complimentary genes.  Then there are genes to determin which 
specific anthocyanin and genes to deternmin which specific glycoside 
of the specific anthocyanin.  On top of that there are dominant 
inhibitor genes which may be complimentary genes.  Just because you 
self a white flower and get all white flowers doesn't automatically 
mean that white flowers is a recessive trait.  The inheritance of 
anthocyanin pigmentation is hardly a "simple" trait, although you can 
make it appear as a "simple" trait by making all the other genes 
homozygous.  

Joe Halinar

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