Table 2 Correlation analysis of cell wall genes in the elongating maize internode

Cell wall metabolism

CesA10 (Q6UDF1)

1.00

0.91

0.89

At5g44030

0

AtCesA4

CesA11 (Q67BC8)

0.91

1.00

0.91

At4g18780

0

AtCesA8

CesA13 (Q67BC7)

0.97

0.89

1.00

At5g17420

0

AtCesA7

BK2 (A1DZD8)

0.90

0.96

0.88

At5g15630

0

AtIRX6

BK2 (A0EJ90)

0.95

0.97

0.90

At5g15630

0

AtIRX6

Glycosyltransferase (Q50HU5, GT43 family)

0.96

0.94

0.95

At5g67230

E-173

AtIRX14H

Glycosyltransferase (Q50HW1, GT43 family)

0.71

0.92

0.92

At2g37090

E-93

AtIRX9

3-β-glucuronosyltransferase-like (Q5QM25)

0.85

0.94

0.88

At1g27600

E-91

AtIRX9H

(1,3;1,4)-β-glucanase (Q7DLM1, GT17)

0.79

0.93

0.85

At4g16260

E-102

-

Lignin metabolism

PAL (Q7X720)

0.91

0.84

0.95

At2g37040

0

AtPAL1

Laccase (Q10ND7)

0.89

0.95

0.92

At5g60020

0

AtLAC17

Laccase (Q2PAJ0)

0.74

0.95

0.93

At5g60020

0

AtLAC17

O-methyltransferase (Q6VWG5)

0.90

0.94

0.89

At5g54160

E-116

AtOMT1

Caffeoyl CoA 3-O-methyltransferase (Q7XYW7)

0.90

0.94

0.85

At4g34050

E-118

AtCCoAOMT1

Caffeoyl CoA 3-O-methyltransferase (Q6VWH0)

0.91

0.96

0.88

At4g34050

E-104

AtCCoAOMT1

Cinnamyl alcohol dehydrogenase (O24562)

0.90

0.94

0.87

At3g19450

E-177

AtCAD4

4-coumarate coenzyme A ligase (Q6Q297)

0.93

0.92

0.87

At3g21240

0

At4CL2

Peroxidase P7X (Q9ZTS7)

0.72

0.91

0.76

At5g05340

E-82

-

Carboxylate oxidase (Q75IP9)

0.74

0.90

0.90

At1g17020

E-79

AtSRG1

Transcription factor and protein kinases

Nucellin-like aspartic protease (Q5Z6M6)

0.95

0.97

0.90

At1g49050

E-114

-

Putative blue copper protein (Q6Z7U7)

0.91

0.98

0.85

At1g49050

E-114

-

Cdc protein kinase-like (Q653F8)

0.83

0.96

0.88

At5g67210

E-62

-

LEM3 (Ligand-effect modulator 3)-like (Q653D8)

0.94

0.93

0.90

At1g79450

E-106

AtLEM3

NAM (Q5QMP4)

0.93

0.95

0.93

At4g28500

E-99

AtSND2

Knox (Q94LW3)

0.94

0.95

0.87

At1g62990

E-109

AtIRX11

BAG (Q5N9K2)

0.93

0.92

0.94

At3g51780

E-40

AtBAG4

POT family protein (Q2R726)

0.84

0.93

0.90

At1g27040

E-83

-

VP1/ABI3 (Q6Z3U3)

0.78

0.92

0.85

At4g32010

E-152

AtHSL1

MYB (Q0J3I9)

0.81

0.90

0.83

At5g67300

E-54

AtMYBR1

F-box (Q5VR67)

0.84

0.91

0.79

At2g26850

E-79

-

Protein kinase (Q2RBK1)

0.96

0.92

0.94

At1g56720

E-150

-

Putative NEP1-interacting protein (Q6Z2U9)

0.85

0.92

0.90

At1g74410

E-42

-

Serine/threonine-protein kinase SAPK3 (Q75V63)

0.88

0.91

0.92

At4g33950

E-142

AtOST1

PREG-like (Q6Z2N6)

0.78

0.90

0.79

At2g44740

E-62

AtCycP4;1