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Table 3 QTLs for root system architecture and root biomass-related traits identified under three P treatments

From: QTL mapping of root traits in wheat under different phosphorus levels using hydroponic culture

Trait

Treatment

QTLa

Marker interval

Physical intervalb (Mb)

Genetic positionc (cM)

LODd

PVE e (%)

Add f

RL

C

QRL.caas-1BL

AX-10928674 - AX-94446430

671.33–688.38

2.5

3.13

5.56

−18.89

QRL.caas-7AS.1

AX-110432090 - AX-109345074

20.95–22.87

0.97

3.51

6.38

19.78

QRL.caas-6AL

AX-86165298 - AX-109431293

612.11–613.49

1.17

4.53

8.20

23.51

QRL.caas-7AL

AX-109966788 - AX-94819074

725.54–734.54

4.84

3.37

6.22

19.54

L

QRL.caas-6BL

AX-109368729 - AX-95094583

699.99–711.76

4

4.90

8.61

45.43

QRL.caas-7BL

AX-95025477 - AX-109289805

700.83–705.84

2.35

3.74

6.57

−38.04

QRL.caas-7AL

AX-109966788 - AX-94819074

725.54–734.54

4.84

3.46

5.50

35.19

H

QRL.caas-7AS.2

AX-109955164 - AX-109445593

116.62–122.18

1.72

4.72

11.89

30.81

RV

C

QRV.caas-6DS

AX-10934618 - AX-94913665

18.67–25.66

3.45

3.98

8.41

0.01

QRV.caas-4BS

AX-108815849 - AX-109491270

21.48–21.79

2.5

4.90

10.32

0.01

H

QRV.caas-7AS

AX-108763612 - AX-111263013

85.44–85.71

1.95

3.49

8.82

0.01

RTN

L

QRTN.caas-6BL

AX-109368729 - AX-95094583

699.99–711.76

4

4.21

7.08

73.56

QRTN.caas-2BL

AX-86176885 - AX-94933613

647.32–647.71

0.35

2.86

4.79

57.39

QRTN.caas-7BL

AX-95025477 - AX-109289805

700.83–705.84

2.35

5.52

9.78

−81.68

QRTN.caas-7AL

AX-109966788 - AX-94819074

725.54–734.54

4.84

2.77

4.64

56.97

H

QRTN.caas-2DL

AX-94959623 - AX-94821426

79.54–82.22

1.26

2.74

7.78

45.97

QRTN.caas-7AS

AX-109955164 - AX-109445593

116.62–122.18

1.72

3.84

8.17

48.20

QRTN.caas-3DL

AX-110036411 - AX-109917936

559.77–566.72

2.79

2.99

6.21

42.26

ROSA

H

QROSA.caas-7AS

AX-109955164 - AX-109445593

116.62–122.18

1.72

4.43

10.80

2.24

SDW

H

QSDW.caas-6BL

AX-109368729 - AX-95094583

699.99–711.76

4

3.44

6.80

0.00

QSDW.caas-6DS

AX-109346183 - AX-94913665

18.67–25.66

3.45

2.59

4.95

0.00

QSDW.caas-3AS

AX-111507145 - AX-109273188

15.80–16.63

1.62

3.01

5.99

0.00

QSDW.caas-3DL

AX-110036411 - AX-109917936

559.77–566.72

2.79

4.17

8.21

0.00

RDW

L

QRDW.caas-4BS

AX-111068079 - AX-111164540

32.42–37.86

0.85

7.70

17.70

0.00

QRDW.caas-4DS

AX-109816583 - AX-109478820

16.64–30.66

3.6

3.12

7.14

0.00

H

QRDW.caas-3AS

AX-111507145 - AX-109273188

15.80–16.63

1.62

3.08

7.06

0.00

QRDW.caas-4BS

AX-111068079 - AX-111164540

32.42–37.86

0.85

3.59

8.12

0.00

TDW

H

QTDW.caas-3AS

AX-111507145 - AX-109273188

15.80–16.63

1.62

3.11

7.68

0.00

RRS

C

QRRS.caas-4BS.1

AX-109494015 - AX-108991675

97.25–103.06

0.48

6.78

13.59

0.01

QRRS.caas-4DS

AX-109816583 - AX-109478820

16.64–30.66

3.6

10.43

20.41

−0.01

L

QRRS.caas-4BS.1

AX-109494015 - AX-108991675

97.25–103.06

0.48

2.94

6.25

0.01

QRRS.caas-4DS

AX-109816583 - AX-109478820

16.64–30.66

3.6

5.55

11.71

−0.01

H

QRRS.caas-4BS.2

AX-108815849 - AX-109491270

21.48–21.79

2.5

4.33

9.35

0.01

QRRS.caas-4DS

AX-109816583 - AX-109478820

16.64–30.66

3.6

3.85

8.30

−0.01

  1. a Quantitative trait loci
  2. b Physical positions of SNP markers based on wheat genome sequences from the International Wheat Genome Sequencing Consortium (IWGSC, http://www.wheatgenome.org/)
  3. c Genetic position of closest marker to the identified QTL on linkage map
  4. d LOD value of each QTL
  5. e Phenotypic variance explained by QTL
  6. f A positive sign means the increased effect contributed by Zhongmai 895, whereas the negative effect was contributed by Yangmai 16
  7. Abbreviations: C control, L low P treatment, H high P treatment, RL root length, RV root volume, RD root diameter, RTN root tip number, ROSA root surface area, SDW shoot dry weight, RDW root dry weight, TDW total dry weight; RRS, ratio of root to shoot dry weight
  8. (Q = QTL) + (caas = Chinese Academy of Agricultural Sciences) + Chromosome = long arm (L) or short arm (S)
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BMC Genomics

ISSN: 1471-2164

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