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Table 4 Quantitative trait loci (QTL) detected for 11 agronomic traits studied in CK60/San Chi San RIL population

From: Validation of QTL mapping and transcriptome profiling for identification of candidate genes associated with nitrogen stress tolerance in sorghum

Trait

QTL name

Environment

Chr

Position (cM)

Flanking markers

Interval (cM)a

LOD score

Additiveb

R2 (%)c

Chl-1

qChl1-2

12NN

2

141.3

S2_64212168 - S2_66500907

136.5-147.4

3.5

−0.83

6.06

qChl1-3

12NN

3

159.4

S3_68886972 - S3_71854294

154-163.1

3.6

0.95

8.07

qChl1-10a

Comb-LN

10

62.8

S10_6734893 - S10_11357374

56.5-73.4

3.8

−1.14

10.7

qChl1-10b

Comb-LN

10

78.4

S10_13327624 - S10_15068324

77.2-79.3

3.1

0.84

7.46

Chl-3

qChl3-10a

12NN

10

48.2

S10_5936786 - S10_6734839

44.1-52.3

4

−2.9

13.9

qChl3-10b

12NN

10

91

S10_50340995 - S10_52987481

88.3-98.8

4.9

2.4

11.8

PH

qPH-2a

11NN

2

2.5

S2_1477485 - S2_2197887

0-3.2

3

8.7

7.55

qPH-2b

11LN

2

10.5

S2_2459689 - S2_3418722

5.4-14

3.2

7

8.04

qPH-3a

11, 12, Comb- LN

3

21.4

S3_2945750 - S3_4802301

17.4-28.4

3.3

7.9

9.51

qPH-6

Comb-NN

6

47.2

S6_40065492 - S6_45811964

44-54

3.8

−6.98

16.9

qPH-9

11NN

9

85.1

S9_50511351 - S9_50956545

82.6-87

3.3

8.9

18.0

AD

qAD-1a

11NN

1

81.2

S1_21655969 - S1_24935643

77.6-91.4

3.4

−1.06

7.06

qAD-1b

11LN

1

174

S1_58103916 - S1_62800271

169-178

3.1

3.73

10.8

qAD-2

12NN

2

30.4

S2_4979265 - S2_7797336

25.4-41.1

4.2

−1.45

10.5

qAD-3

11NN

3

3.1

S3_518323 - S3_2452009

1.4-11.4

5

−1.48

12.8

 

qAD-9

11NN, Comb- LN

9

78.9

S9_49568498 - S9_50744450

75.9-85

5.7

1.61

14.7

MC1

qMC1-1

12LN

1

169.8

S1_57571254 - S1_59648859

163.9-171.3

3

0.88

10.67

qMC1-8

11NN

8

103.3

S8_48291652 - S8_53690396

88.6-115.4

3.3

−0.87

7.48

MC2

qMC2-1

11LN

1

107.7

S1_44806835 - S1_49470786

101.2-111.3

3

−1.82

7.65

qMC2-9

12LN

9

78.9

S9_49568498 - S9_50744450

75.9-85

3.1

2.92

6.76

BY

qBY-3

12LN

3

151.8

S3_66370259 - S3_70192466

143-158.3

3

0.42

6.81

qBY-7

11LN, Comb-LN

7

98.7

S7_57890877 - S7_58551650

97.1-100.8

4.1

−1.22

11

qBY-8

Comb-LN

8

33.3

S8_2528799 - S8_4381062

23.9-34.1

3.9

−0.75

10.0

GY

qGY-2

12NN, Comb-NN

2

65.9

S2_13864242 - S2_19506339

65.6-71.9

3.1

−0.4

7.48

qGY-8

11LN

8

102.3

S8_48291652 - S8_53253482

85.4-111.6

3.6

0.37

6.63

qGY-9

Comb-NN

9

90.6

S9_50744450 - S9_51382632

86.5-95.6

3.1

0.27

16.8

qGY-10a

12LN

10

61.8

S10_6734839 - S10_8210492

50.8-63.1

3.1

−0.21

7.09

qGY-10b

12NN, Comb-NN

10

121.3

S10_54423190 - S10_55477998

117.2-125.5

4.6

−0.54

12.9

TGW

qTGW-1

11LN

1

2.8

S1_1573765 - S1_5966723

0-12.3

3.3

1.19

17.6

qTGW-3

11NN, Comb-LN

3

95.1

S3_54561579 - S3_56298715

92.4-98.8

3.7

−1.22

9.19

qTGW-4

12NN

4

11.7

S4_4317922 - S4_5726443

10.6-16.4

3.1

−0.78

7.3

GS

qGS-1

11LN

1

36

S1_10813941 - S1_14302572

25.7-36.8

3.2

−0.08

8.11

  1. Traits indicate Chl1, Chl2, Chl3 chlorophyll contents at (vegetative, anthesis, and maturity) stages, PH plant height (cm), AD days to anthesis, MC1% stover moisture content, MC2% head moisture content, BY biomass yield (t. ha−1), GY grain yield (t. ha−1), TGW thousand grain weight (g), GS grain/stover ratio (%). QTL name indicates q for QTL followed by trait name to which the QTL was detected and by the chromosome number on which it was detected. Environments: 11NN, 12NN indicate that QTLs detected in normal N treatments in 2011 and 2012 years respectively; 11LN, 12LN indicate QTLs detected in low N treatments in 2011 and 2012 years respectively; Comb-NN, Comb-LN indicates QTLs detected on trait values averaged over two years (2011 and 2012) in normal N and low N treatments respectively. Chr, chromosome on which QTL was detected. a2.0-LOD drop support interval of the QTL; bAdditive effect: positive values of the additive effect indicate that alleles from CK60 were in the direction of increasing the trait score and vice versa; cPercentage of phenotypic variation explained by the QTL. If more than one QTL were detected on the same chromosome for a trait, QTLs identified were serially numbered. QTLs highlighted in bold are the validated QTLs, which were also detected in earlier study reported by Gelli et al. [46]
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BMC Plant Biology

ISSN: 1471-2229

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