Production
of
Genetically
Variable
Plants
-
In
some
callus
culture
there
is
a
major
tendency
of
the
callus
tissue
exhibiting
a
strong
tendency
toward
numerical
variation
of
the
chromosomes
in
the
cells
after
a
number
of
serial
subcultures.
The
chromosomal
instability
in
the
cultured
cells
plays
an
important
role
in
polyploidization
of
cells
and
genetically
variable
plants
can
be
raised
from
such
polyploidized
cells
by
subsequent
micropropagation.



