Table 2 Quantitative trait loci (QTL) interactions estimated in the joint F2 population.

From: Six-gene model underlying heterosis for culm length and flowering date in sorghum (Sorghum bicolor (L.) Moench)

Trait

QTL1

chr

Marker Interval1

Position1

Interval1 (cM)

QTL2

chr

Marker Interval2

Position2

Interval2 (cM)

Model testf

AAa

PVE(%)b

ADc

PVE(%)

DAd

PVE(%)

DDe

PVE(%)

CL

qCL-1

1

SB633-SB725

125.7

123.7–128.7

qCL-6a

6

SB3387-SB3409

5.6

2.6–7.6

***

-19.4

0.8

28.7

0.8

-25.2

0.8

  

qCL-1

1

SB633-SB725

125.7

123.7–128.7

qCL-9

9

SB5009-Xtxp107

104.4

100.4–107.7

*

20.5

1.2

      

FD

qFD-1

1

SB633-SB725

126.7

124.7–128.7

qFD-6a

6

SB3387-SB3409

2.6

0.6–5.6

***

-16.5

1.8

16.7

0.9

-15.8

1.0

  

qFD-1

1

SB633-SB725

126.7

124.7–128.7

qFD-6b

6

SB3481-SB3498

38.4

34.8–41.2

***

7.8

0.2

    

17.6

0.8

qFD-2

2

SB1430-Xtxp7

116.5

115.3–119.5

qFD-6b

6

SB3481-SB3498

38.4

34.8–41.2

**

9.0

0.5

9.7

0.4

  

13.7

0.5

  1. a: Additive × Additive epistatic effect.
  2. b: Phenotypic variance explained.
  3. c: Additive (QTL1) × Dominant epistatic effect (QTL2).
  4. d: Dominant effect (QTL1) × Additive epistatic effect (QTL2).
  5. e: Dominant × Dominant epistatic effect.
  6. f: Epistasis test with fitqtl function in the Rqtl (S3 Table).