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Table 1 Phenylpropanoid and lignin pathway genes differentially expressed in maize F2, F2bm3 and AS225 basal and ear internodes at silking stage.

From: Expression of cell wall related genes in basal and ear internodes of silking brown-midrib-3, caffeic acid O-methyltransferase (COMT) down-regulated, and normal maize plants

 

Contig

mRNA

Basal internode

Ear internode

Maize phenylpropanoid and lignin pathway related genes

  

F2

F2bm3/F2

AS225/F2

F2

F2bm3/F2

AS225/F2

Phenylalanine/Tyrosine ammonia-lyase (PAL/TAL, MZPAL)

2161072.2.1

L77912

38154

0.50

0.92

187353

0.22

0.66

Cinnamate 4-hydroxylase 2 (C4H2)

-

CF647652

30820

1.71

1.28

19988

3.20

1.80

4-Coumarate:CoA ligase 2 (4CL2)

-

-

22694

1.59

1.39

21414

2.36

1.22

Caffeic acid O-methyltransferase (COMT)

2192909.2.3

M73235

39113

0.25

0.22

142203

0.05

0.12

Ferulate 5-hydroxylase (F5H)

-

DR966008

13754

3.13

2.34

45662

0.99

0.54

Caffeoyl CoA O-methyltransferase (CCoAOMT3)

2591258.2.1

AY104670

32846

1.87

1.97

23740

3.18

2.45

Caffeoyl-CoA O-methyltransferase (CCoAOMT4)

2943966.2.1

AI855419

14245

1.98

1.84

13947

2.38

1.54

Peroxidase (ZmPox2)

2619325.2.1

AJ401275

20634

2.60

1.58

10903

4.02

2.66

Peroxidase (4th zinnia DV017512 ortholog)

2763121.2.1

AY110228

15081

1.75

1.27

10476

2.63

1.73

Laccase (Poplar lac3 1st ortholog)

8616263.2.1

BG842157

83977

2.05

1.79

46998

3.80

2.79

Laccase (Poplar lac3 3rd ortholog)

2440419.2.1

BT019237

21387

2.08

1.49

13702

2.90

1.85

Aldehyde dehydrogenase (ALDH, ALDH22A1 ortholog)

2750698.2.1

AY109842

21185

2.05

1.38

13749

2.75

1.75

Chorismate mutase

2521459.2.4

AY103806

34104

1.78

1.91

19436

3.85

2.45

Chorismate mutase/Prephenate dehydratase

2950290.2.1

AY109614

19357

2.09

1.54

18751

2.35

1.42

Chalcone flavonone isomerase (ZmCHI1)

3390529.2.1

Z22760

30010

2.79

1.85

19524

3.73

2.31

  1. Normalized expression values are given for the F2 line and values for each mutant are expressed as ratios of signal intensity compared to normal plants. Genes were considered to be significantly differentially expressed when expression ratio values were lower than 0.5 or higher than 2.0. Values between the two thresholds are indicated in italics.