FORL
resistance
in
Tm
-
2
and
Tm
-
2
2
lines
from
the
TGRC
stock
.
Laterrot
H
.
,
Moretti
A
.
Station
d'Amelioration
des
Plantes
Maraicheres
B
.
P
.
94
-
84143
MONTFAVET
Cedex,
France
.
The
linkage
between
the
Fr1
allele
controlling
the
Fusarium
oxysporum
f
.
sp
.
radicis
lycopersici
(=
FORL)
resistance
with
the
Tm
-
2
or
Tm
-
2
2
allele
for
TMV
resistance
is
frequent
(Laterrot
and
Couteaudier,
1989
.
TGC
Report
N°
39
p
21)
.
Many
lines
and
commercial
F
1
,
hybrids
resistant
to
FORL
have
been
found
amoung
the
varieties
carrying
the
Tm
-
2
2
allele
.
Recently
we
have
tested
the
10
accessions
carrying
the
Tm
-
2
or
Tm
-
2
2
alleles
from
the
stock
of
the
TGRC
listed
by
Rick
and
Chetelat
in
TGC
Report
N°
44:
32
-
44
(1994)
.
The
test
was
realized
with
a
french
isolate
of
FORL,
with
18
days
-
old
plantlets
.
Five
lines
showing
FORL
resistance
response
were
tested
a
second
time
using
a
second
sample
of
seeds
received
like
the
first
one
from
C
.
M
.
Rick
.
There
was
a
problem
of
seed
germination
with
the
accession
LA
3275
carrying
Tm
-
2
2
linked
to
ah
.
Only
one
plant
was
obtained,
this
plant
was
FORL
resistant
It
is
know
that
ah
sometimes
causes
a
poor
seed
germination
(Laterrot,
1973
.
TGC
Report
N°
23
p
24)
.
The
results
of
the
2
tests
are
presented
in
the
table
1
.
Four
accessions
resistant
to
TMV
are
also
resistant
to
FORL
.
These
lines
are
carrying
the
following
alleles
of
TMV
resistance
LA
1791:
Tm
-
2
2
allele
LA
3270:
Tm
-
2
allele
linked
to
nv
LA
3273:
Tm
-
2
2
allele
LA
3292:
Tm
-
2
allele
Results
are
uncertain
with
LA
3275
(only
I
plant
)
.
The
line
LA
3297
is
in
segregation
for
the
Fr1
allele
.
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