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Table 7 Comparisons of EST abundance of genes related to lignin biosynthesis in different wood development stages.

From: Generation and analysis of expressed sequence tags from six developing xylem libraries in Pinus radiata D. Don

Gene

EST abundance in EW and LW

EST abundance in JW and MW

 

EW a

LWb

P-value e

JW c

MW d

P-value e

CCoAOMT

16

13

> 0.05

9

12

0.04

C 4H

10

8

> 0.05

4

4

> 0.05

4CL

10

6

> 0.05

8

5

> 0.05

CAD

6

3

0.07

1

4

0.04

C 3H

7

2

> 0.05

2

3

> 0.05

COMT

2

6

> 0.05

3

3

> 0.05

CCR

1

1

> 0.05

2

0

> 0.05

PAL

0

2

> 0.05

2

0

> 0.05

Peroxidase

11

5

0.08

0

7

0.001

Laccase

16

20

> 0.05

16

10

> 0.05

SAMS

15

31

0.05

19

11

> 0.05

Dirigent-like

4

3

> 0.05

3

1

> 0.05

Cytochrome c oxidase

7

7

> 0.05

10

0

0.01

  1. a: The number of ESTs for the combined earlywood (EW) libraries. Total ESTs in the combined earlywood libraries from juvenile, transition and mature age are 2,790;
  2. b: The number of ESTs for the combined latewood (LW) libraries. Total ESTs in the combined latewood libraries from juvenile, transition and mature age are 3,169;
  3. c: The number of ESTs for the combined juvenile wood (JW) libraries. Total ESTs in the combined JW libraries from earlywood and latewood tissues are 2,902;
  4. d: The number of ESTs for the combined mature wood (MW) libraries. Total ESTs in the combined MW libraries from earlywood and latewood tissues are 1,564;
  5. e: Statistical significance according to Audic and Claverie 1997 [79].