Basic HTML Version
Molecular Plant Breeding 2013, Vol.5, No.9, 47
-
63
http://mpb.biopublisher.ca
55
level
of
polymorphism
in
offspring
derived
by
crossing
it
with
indica
cultivars
(Thomson
et
al.,
2010a;
Platten
et
al.,
2013),
It
is
a
landrace
in
it
native
origin
(Saudi
Arabia)
which
might
have
accumulated
a
lot
of
introgression
from
many
distant
relatives
of
rice
resulting
in
the
50%
polymorphic
rate
in
the
study;.
In
addition,
the
heterozygous
alleles
observed
in
the
parental
survey
might
be
due
to
the
alleles
located
in
unknown
regions
such
as
indels
in
the
genome
making
it
impossible
for
the
SNPs
to
detect
it.
Analysis
of
QTLs
for
salt
tolerance
has
been
reported
by
different workers
(Flowers
et
al.,
2000;
Prasad
et
al.,
2000;
Tuan
et
al.,
2000;
Koyama
et
al.,
2001;
Bonilla
et
al.,
2002; Masood
et
al.,
2004;
Lin
et
al.,
2004;
Ren
et
al.,
2005;
Lee
et
al.,
2007,
Haq
et
al.,
2010).
In
our
study,
the
seven
QTL
associated
to
salt
tolerance
were
clustering
on
3
chromosomes
(1,
2
and
6)
Appendix 1 RILs selected for further advancement in the breeding program
(A) Under non saline control conditions
Genotypes
Plant height (cm)
Root length (cm)
Shoot fresh weight (g)
Shoot dry weight (g)
1
RIL 21
13
9
0.146
0.028
2
RIL 35
32
14
0.414
0.080
3
RIL 40
36
17
0.619
0.137
4
RIL 44
25
14
0.965
0.169
5
RIL 70
29
15
1.204
0.191
6
RIL 84
22
15
0.648
0.103
7
RIL 102
29
16
0.406
0.077
8
RIL 106
28
17
0.490
0.094
9
RIL 107
31
15
0.498
0.095
10
RIL 115
27
13
0.512
0.091
11
RIL 121
24
15
0.774
0.141
12
RIL 137
30
13
0.713
0.140
13
RIL 139
33
14
1.117
0.152
14
RIL 178
22
16
0.397
0.088
15
RIL 181
18
17
0.689
0.196
16
RIL 190
21
12
0.312
0.105
17
RIL 191
29
14
0.926
0.201
18
RIL 202
24
12
0.534
0.076
19
RIL 207
40
17
0.426
0.064
20
RIL 220
31
14
0.668
0.093
21
RIL 251
31
14
0.863
1.263
22
RIL 253
27
18
0.532
0.093
23
RIL 258
31
15
0.619
0.126
24
RIL 260
22
12
0.825
0.110
25
RIL 261
28
15
0.637
0.123
26
RIL 270
35
13
1.289
0.198
27
RIL 271
29
14
0.771
0.124
28
RIL 272
33
16
0.615
0.119
29
RIL 287
32
13
0.693
0.140
30
RIL 294
35
17
0.764
0.160
31
RIL 295
44
18
1.715
0.308
Hasawi tolerant donor)
29
14
0.731
0.118
IR 29 Sensitive parent) 17
12
0.542
0.130