(Orlova,1991)
.
The
segregation
in
the
F
2
on
plants
with
plumy
-
type
form
fruits
and
rest
plants
is
22:70,
that
corresponds
to
monogenic
inheritance:
0
.
90>P>0
.
75,
X
2
=0
.
06
.
This
fact
gives
basis
for
the
analysis
of
the
dihybrid
segregation
data
AB:Ab:aB:ab,
which
in
our
experiment
was
62:8:14:8
.
Such
segregation
did
not
correspond
to
theoretical
independence
–
51
.
75:17
.
25:17
.
25:5
.
75,
because
X
2
=8
.
57
(
X
2
theor
.
=7
.
81)
.
The
frequency
of
genes
recombination
r=30
.
5±3
.
9%
.
According
to
known
data
gene
o
(ovate)
is
located
on
chromosome
2,
position
55
(Rick
et
al
.
,
1987)
.
In
the
segregation
F
2
(Volganin,
d
x
Mh
.
Florida,
d
+
)
the
gene
fpo
had
not
manifested
coupling
with
the
gene
d
(chrom
.
2,
position
70)
.
It
means
that
gene
fpo
there
is
on
the
other
side
of
gene
"o"
on
chromosome
2,
or
in
the
position
25,
near
with
gene
"mgh"
(marginal
necrotic)
.
Gene
fpo
may
be
used
in
the
breeding
of
varieties
suited
for
combine
harvesting
.
Table
1
.
Inheritance
of
the
force
of
fruit
putting
out
in
hybrid
combination
Vkusny
-
j
x
Volganin
-
j
Sample
Number
of
plants
The
force
of
fruit
putting
out
average
min
Max
Relation
of
number
plants
with
weak
force
of
putting
out
to
rest
plants
in
F
2
Vkusny
-
j
(P
1
)
10
0
.
84±0
.
046
0
.
57
1
.
08
-
Volganin
-
j
(P
2
)
20
1
.
56±0
.
067
1
.
13
2
.
20
-
F
1
(P
1
x
P
2
)
9
1
.
08±0
.
089
0
.
74
1
.
43
-
F
2
(P
1
x
P
2
)
92
1
.
38±0
.
096
0
.
48
2
.
48
16:76
F
2
plants
with
different
fruit
form
Plumy
-
type
(ovate)
22
1
.
07±0
.
097
0
.
53
2
.
09
8:14
Rest
group
70
1
.
47±0
.
098
0
.
48
2
.
48
8:62
Literature
cited:
1
.
Avdeyev
Y
.
I
.
Genetic
analysis
of
stems
and
fruits
traits
of
the
Cucumis
sativus
L
.
J
.
Cytology
and
genetics,
No
.
5,
1994,
p
.
34
-
46
(in
Russian)
.
2
.
Orlova
N
.
N
.
Genetic
analysis
.
B
.
1991,
Moscow,
p
.
317
(in
Russian)
.
3
.
Rick
C
.
Mutschler,
M
.
Tanksley
S
.
Linkage
maps
of
the
tomato
.
TGC
Report,
37,
1987,
pp
.
5
-
34
.
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