Dana Myers > wrote :

> Mark Lipton wrote:
> > Mike Tommasi wrote:
> >
> >> I just read on Vitisphere (my translation)
> >>
> >> Pinot gris is a chimera
>
> > Mike,
> > This is mind boggling if true: the genome of the skin tissue is
> > DIFFERENT from that of the flesh. That implies that either a mutation
> > takes place during the development of the grape, or that the skin and
> > the flesh are derived from two different germ lines. Neither
> > explanation makes much sense to me...
>
> I'm not even remotely an expert in this field (my initial
> exposure to the subject was an episode of CSI last year),
> but I did a brief bit of web-research then, for what it's
> worth. I was left with the impression that a chimera is the
> result of a mutation or aberration in development; so I
> too am quite surprised to find an example of something
> that reliably reproduces as a chimera.
>
> I'd think that the seeds would contain one genome or another.
>
> Dana

Right. But vines are propagated asexually, so a mutation can be
reproduced indefinitely. I think. I don't know much about the subject
either and I don't watch CSI, so you may have the advantage.