The
genome
consists
of
dsRNA
which
constitutes
about
23%
of
the
virus
particle,
The
RNA
exists
as
a
heterogenous
population
of
molecules
0.1-1.5
nm
long.
It
consists
of
12
components
ranging
from
0.3
to
2.8xIO6.
The
sizes
of
most
of
the
segments
are
virtually
identical.
The
aggregate
molecular
weight
of
the
RNA
is
15.1
x
106
daltons.
The
G+C
content
of
the
RNA
is
38%.
WT
virions
contain
two
major
polypeptides
and
two
minor
ones.
In
addition
there
are
three
or
four
components
present
in
smaller
amounts.The
dsRNA
WTV
genome
produces
single
stranded
mRNA
by
the
action
of
a
replicase
(dsRNA-
ssRNA
polymerase);
which
is
a
part
of
the
capsid.
WTV,
MRDV,
FDV
and
RDV
all
multiply
in
the
cytoplasm.
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