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Table 2 QTL for gray leaf spot (GLS) resistance and days to anthesis (DTA) identified in the CML444 X SC Malawi RIL population $

From: Mapping QTL conferring resistance in maize to gray leaf spot disease caused by Cercospora zeina

Chra

Binb

Peak markerc

1-LOD intervald

2-LOD intervale

LOD Scoref

R2 g

Additive effecth

Allele sourcei

QTL namej

1

1.10

umc147b

264.7 - 281.0

264.3 - 285.7

3.39

10.1

-0.460

CML

1C_GLS

1

1.10

umc147b

270.9 - 285.6

267.5 - 289.7

3.23

6.4

-0.278

CML

1G_GLS

3

3.02/3.03

bnlg1447

29.6 - 46.2

25.3 - 50.1

2.95

8.5

-0.409

CML

3H_GLS

3

3.09

bnlg1182

201.8 - 219.6

207.9 - 219.6

4.55

13.0

-0.472

CML

3F_GLS

4

4.01

umc1017

0.0 - 8.2

0.0 - 13.3

3.14

8.0

-0.252

CML

4K_GLS

4

4.08

umc15a

121.9 - 133.8

116.5 - 136.6

4.78

10.9

-0.364

CML

4G_GLS

4

4.08

umc15a

122.6 - 132.9

120.9 - 136.0

4.55

12.8

-0.551

CML

4E_GLS

4

4.08

umc15a

122.9 - 136.1

120.4 - 140.5

3.59

8.9

-0.336

CML

4B_GLS

4

4.08

csu11b

127.9 - 139.3

127.9 - 142.3

3.92

12.0

-0.497

CML

4J_GLS

6

6.06

umc1424

141.0 - 151.7

135.3 - 154.7

4.92

21.8

0.626

SC

6F_GLS

6

6.06/6.07

umc36

142.7 - 160.5

139.2 - 164.3

3.29

13.0

0.504

SC

6H_GLS

6

6.06/6.07

umc36

142.3 - 161.4

139.0 - 162.3

2.95

13.8

0.335

SC

6K_GLS

6

6.06/6.07

umc36

147.3 - 166.1

143.7 - 174.0

3.64

13.7

0.584

SC

6E_GLS

6

6.06/6.07

umc36

147.5 - 162.1

143.1 - 169.6

5.00

10.2

0.362

SC

6G_GLS

6

6.06/6.07

umc36

150.7 - 162.0

147.7 - 168.5

4.61

10.7

0.232

SC

6I_GLS

6

6.06/6.07

umc36

148.3 - 163.9

143.2 - 174.4

3.38

9.3

0.451

SC

6J_GLS

7

7.02

umc1393

10.0 - 28.7

9.0 - 30.7

3.16

10.2

0.467

SC

7C_GLS

7

7.02

umc1393

20.4 - 29.7

20.1 - 30.8

3.31

10.4

0.218

SC

7I_GLS

7

7.02/7.03

bnlg1808

22.1 - 36.5

20.4 - 40.5

3.00

9.0

0.273

SC

7K_GLS

7

7.02/7.03

bnlg1808

34.4 - 41.1

33.0 - 43.0

4.67

13.4

0.341

SC

7A_GLS

7

7.02/7.03

bnl15.21

30.8 - 42.8

30.8 - 44.6

3.16

9.4

0.446

SC

7J_GLS

7

7.04

bnl14.07

72.2 - 86.3

67.2 - 87.4

3.26

10.0

0.425

SC

7F_GLS

9

9.04/9.05

umc1231

83.0 - 97.3

75.6 - 97.6

3.31

10.7

-0.317

CML

9A1_GLS

9

9.04/9.05

umc1231

92.9 - 101.3

77.8 - 105.5

3.70

9.2

-0.435

CML

9F1_GLS

9

9.06

umc1733

115.0 - 122.8

110.7 - 124.5

3.40

7.6

0.398

SC

9H_GLS

9

9.06

umc1733

119.8 - 123.6

119.8 - 124.7

4.51

10.1

0.482

SC

9F2_GLS

9

9.06

umc1733

120.3 - 123.6

120.0 - 124.4

6.65

17.8

0.443

SC

9A2_GLS

10

10.2

umc1337

23.4 - 40.5

16.6 - 45.5

2.99

6.3

-0.283

CML

10G1_GLS

10

10.06/10.07

bnl7.49a

114.0 - 127.9

110.9 - 129.8

4.53

13.5

-0.509

CML

10H_GLS

10

10.06/10.07

bnl7.49a

113.4 - 129.2

108.7 - 129.9

4.52

12.5

-0.391

CML

10G2_GLS

4

4.08

umc15a

122.3 - 134.4

120.4 - 138.0

3.90

10.6

-0.275

CML

4_GLS*

6

6.06/6.07

umc36

148.8 - 161.4

146.2 - 167.2

6.09

20.9

0.392

SC

6_GLS*

1

1.07

dupssr12

189.7 - 202.0

187.5 - 217.2

4.73

14

1.1399

SC

1_DTA#

4

4.09

npi593a

141.6 - 149.8

138.0 - 153.1

4.04

10

0.9455

SC

4_DTA#

  1. aMaize chromosome.
  2. bChromosome bin location of QTL (1-LOD (i.e. 95% confidence) interval) based on shared markers with the IBM2005 neighbours frame map.
  3. cPeak marker refers to marker on QMap 2.0 that is closest to the QTL peak.
  4. dRange in cM that defines 1-LOD interval of QTL.
  5. eRange in cM that defines 2-LOD interval of QTL.
  6. fLog of odds (LOD) value at position of QTL peak.
  7. gPhenotypic variance explained by the QTL (expressed as percentage).
  8. hAdditive effect of QTL. For GLS disease ratings, this is based on the one to nine scale employed. For days to anthesis, this is based on days. Positive values indicate that the allele for resistance or early anthesis was derived from SC Malawi.
  9. iParental allele associated with increased GLS resistance or earlier anthesis CML = CML444; SC = SC Malawi.
  10. jQTL name. First number indicates maize chromosome number whereas letter denotes field trial as described in Figure 1. Subsequent numbers differentiate more than one QTL identified on the same chromosme in the same field trial. GLS represent QTL for GLS resistance whereas DTA indicate QTL for days to anthesis.
  11. *Joint GLS QTL calculated from the mean z-scores of the least square means of the GLS disease scores from the eleven environments.
  12. #DTA QTL were identified using DTA data from an independent field trial at Redgates 2010.
  13. $GLS QTL were identified using QMap2.0 and GLS disease data from each of eleven environments in KwaZulu-Natal, South Africa. DTA QTL were identified using QMap2.0 and DTA data from an independent field trial at Redgates farm, KwaZulu-Natal, South Africa.