Cloning
- To: pumpkins@mallorn.com
- Subject: Cloning
- From: H* E* P*
- Date: Fri, 23 Apr 1999 00:36:35 -0700
- References:
pumpkins@mallorn.com wrote:
>
> In a message dated 4/21/99 1:20:49 AM Eastern Daylight Time,
> indbio@disknet.com writes:
>
> > But you would still be back to your old problem, "Of two pumpkins
> > growing on the same vine, one is always better."
> > --
> > Harold Eddleman
>
> Not if two embryos were clones, there would be no genetic difference. So, if
> they both were planted at the same time, they would be genetically paralell.
> So each flower, male and female, would appear in the exact same number and
> each in the exact same corresponding location on each plant. Each of these
> flowers would be genetically identical in every way to the corresponding
> flower on the other plant. So if the corresponding flowers were compared for
> experimentation, any genetic differences could be ruled out.
Further comment by Eddleman
Cloning is my business. It is the business of many people. Yet visit a
field and you can see variation and many others have said.
There are many cloning method: grafting, cuttings, etc. including
microcuttings which I do (micropropagation). I do intend to try AG in
tissue culture some time.
Main purpose of this letter is to refute you premise that indentical
plants will have flowers in the identical place on the stem, etc. That
does not happen. Go to any orchard and look at the Red Delicious apple
trees.
While clones are identical that is not true of the gametes. In a field
of clones pumpkin vines no two female flowers will have ovules of the
same genetic composition. That will not affect the fruit crop that year,
but the seeds from such a field would have genetic variability. You did
not say they would. I just mention that point.
Cloning is so common place, and variation of the output (due to
insects, etc) so common that I often forget I am dealing with clones.
--
Harold Eddleman
---------------------------------------------------------------------
To sign-off this list, send email to majordomo@mallorn.com with the
message text UNSUBSCRIBE PUMPKINS
