I just read on Vitisphere (my translation)

Pinot gris is a chimera

Research by INRA in Colmar on the pinot genome has led to an amazing
discovery: certain versions of the pinot gris grape have two distinct
genomes, one for the skin and one for the berry itself. In genetics
this is referred to as a "natural tissue chimera". So in pinot gris
one finds the skin genome, that gives it its colour and therefore its
aroma, and the denome of the interior tissues, which are IDENTICAL TO
PINOT BLANC ! The study encompassed 6 types of pinot : gris, noir,
meunier, teinturier, blanc and moure.


Mike

Mike Tommasi, Six Fours, France
email link http://www.tommasi.org/mymail