Skip to main content

Table 2 QTLs linked to iodine value (IV) and fatty acid composition (FAC) in the OxG interspecific mapping population. QTLs identified using Interval Mapping (IM), the Multiple-QTL Model (MQM), the Kruskal-Wallis non-parametric tests (KW) and G Model (GM)

From: Fine-mapping and cross-validation of QTLs linked to fatty acid composition in multiple independent interspecific crosses of oil palm

Trait

IM

MQM

KW

GM

 

QTL interval (cM)

QTL peak (cM)

QTL peak (LOD)

Closest marker

Var (%)

LOD

Var (%)

K-value

p-value

Marker effect

p-value

IV (GW = LOD4.3)

OT1a

102.3–151.5

149.6

17.4

SNPM04501

60.8

17.6

61.2

51.1

0.0001

2.16 (+)

0.0000000

SNPM00967

     

2.16 (+)

0.0000000

SNPM00144

     

2.16 (+)

0.0000000

SNPM01034

     

2.16 (−)

0.0000000

SNPM00150

     

2.16 (−)

0.0000000

PA5_oSSRa

     

2.15 (−)

0.0000000

PA3_oSSRa

     

2.18 (−)

0.0000000

SNPE00431

     

2.17 (+)

0.0000000

sPSc00328a

     

2.15 (+)

0.0000000

C14:0 (GW = LOD3.7)

OT1a

140.7–151.5

149.6

6.2

SNPM04501

48.3

5.7

26.5

24.9

0.0001

0.04 (−)

0.0000000

SNPM00967

     

0.04 (−)

0.0000000

SNPM00144

     

0.04 (−)

0.0000000

SNPM01034

     

0.04 (+)

0.0000000

SNPM00150

     

0.04 (+)

0.0000000

PA5_oSSRa

     

0.04 (+)

0.0000000

PA3_oSSRa

     

0.04 (+)

0.0000000

SNPE00431

     

0.04 (−)

0.0000000

sPSc00328a

     

0.04 (−)

0.0000000

T2

61.2–62.1

61.2

4.1

SNPM04068

20.1

4.3

22.9

15.1

0.0005

0.03 (+)

0.0000000

SNPM01906

     

0.03 (+)

0.0000000

SNPM04410

     

0.03 (−)

0.0000000

T9

17.2–32.6

17.2

4.5

SNPM00343

21.9

4.0

21.5

17.7

0.0001

0.03 (−)

0.0000000

C16:0 (GW = LOD4.9)

OT1a

102.3–151.5

149.6

21.5

SNPM04501

69.4

22.3

70.2

55.2

0.0001

2.41 (−)

0.0000000

SNPM00967

     

2.41 (−)

0.0000000

SNPM00144

     

2.42 (−)

0.0000000

SNPM01034

     

2.41 (+)

0.0000000

SNPM00150

     

2.41 (+)

0.0000000

PA5_oSSRa

     

2.37 (+)

0.0000000

PA3_oSSRa

     

2.35 (+)

0.0000000

SNPE00431

     

2.42 (−)

0.0000000

sPSc00328a

     

2.40 (−)

0.0000000

C16:1 (GW = LOD4.3)

T9

2.9–32.6

22.0

10.7

SNPM00331

44.2

10.7

44.2

36.0

0.0001

0.08 (−)

0.0000000

SNPM00922

     

0.08 (+)

0.0000000

C18:0 (GW = LOD3.8)

OT1a

140.7–151.5

151.1

6.4

sPSc00314a

30.5

6.8

30.9

22.1

0.0001

0.14 (−)

0.0000001

OT4

158.4–176.5

165.1

4.9

SNPM00121

54.2

4.8

23.5

16.6

0.0001

0.02 (+)

0.0000020

T9

13.4–24.8

22.0

5.0

SNPM00331

23.8

5.0

23.8

19.0

0.0001

0.03 (+)

0.0000003

SNPM00922

     

0.03 (−)

0.0000005

C18:1 (GW = LOD4.0)

OT1a

112.6–151.5

149.6

16.3

SNPM04501

59.5

16.9

60.1

49.5

0.0001

2.29 (+)

0.0000000

SNPM00967

     

2.17 (+)

0.0000000

SNPM00144

     

2.18 (+)

0.0000000

SNPM01034

     

2.17 (−)

0.0000000

SNPM00150

     

2.29 (−)

0.0000000

PA5_oSSRa

     

2.39 (−)

0.0000000

PA3_oSSRa

     

2.06 (−)

0.0000000

SNPE00431

     

2.07 (+)

0.0000000

sPSc00328a

     

2.30 (+)

0.0000000

C18:2 (GW = LOD3.8)

T3 (CW = LOD1.7)

46.9–65.2

63.3

2.1

SNPM00462

10.9

2.3

11.5

8.9

0.0050

0.17 (+)

0.0017218

OT6 (CW = LOD2.7)

38.9–54.5

45.8

3.1

SNPM05061

35.2

3.3

40.2

11.0

0.0010

0.16 (−)

0.0000052

  1. aAfter fine mapping
  2. GW: 95 % Genome-wide significant LOD threshold
  3. CW: 95 % Chromosome-wide significant LOD threshold