Are there "Identical Twin" plants?

George Hammond ghammond at mediaone.net
Sat Dec 16 02:08:05 EST 2000


Cereoid wrote:
> 
> Cloned plants would genetically identical. One can theoretically raise an
> INFINITE number of genetically identical plants. Mind boggling, isn't it? It
> is being done all the time.


GH:  no kidding... thanks for the info.

> 
> The rest depends on how they were raised. Genetically identical plants grown
> under different conditions may outwardly look different.
>

GH:  I understand it depends on what part the plant started from in the
     case of fragmentation etc.
	However, in the case of some well organized "spore" bearing
     asexual plants, they should all look pretty much the same... like
     Dandelions for instance. (A Dandelion is an asexual plant if
     I'm not mistaken).
       Now, it's pretty noticeable on your lawn that some Dandelions get
     a lot larger than others at maturity.  If we assume that they are all
     genetically IDENTICAL (or arranged it so), then this would tell us
     something about the effect of the "average environment" on Dandelion
     growth, would it not?  I mean, we could compute a mean and a 
     standard deviation for the height and weight of an ensemble
     of "genetically identical" Dandelions... isn't this so?  This would
     tell us how much the "environmental variance" was.
 
> The old nature verses nurture argument?
>

GH:  Yes sir.... big time.  The thesis here, is that there is such a
     thing as a "universal environmental growth curve deficit" for, in
effect,
     every living thing on the planet.  Of course, you have to "eliminate
     the genetic component" first, to measure it.  Seems to me, from what
     I've heard.... agriculturists must ALREADY KNOW the answer
     to this question, at least for specific asexual crops... and
     probably know it to 2-decimal places.  I'd like to find out
     what it is.

     You have no idea how important this is.  Scientists now suspect
     that this "universal growth curve deficit" in humans (see:

http://people.ne.mediaone.net/ghammond/growth5.JPG

     is actually the scientific explanation of "God", because of it's
     impact on the brain.
       Identical Twin studies are used extensively in Psychology as
     you know.  But now it is suspected that this "growth curve deficit"
     actually exists in every living thing... and the first thing to look
     at would be Plants... where, interestingly, the genetic component
     can apparently be ENTIRELY ELIMINATED, unlike the case for the
     higher animals because of sexual reproduction.
      Any further info on asexual crop measurements... such as 
      the "standard deviation in crop yield per acre" for identical
      plants, would be of the keenest interest.


-- 
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George Hammond, M.S. Physics
Email:    ghammond at mediaone.net
Website:  http://people.ne.mediaone.net/ghammond/index.html
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