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Table 1 Functional classification of genes expressed differentially during germination under standard conditions.

From: Transcript profiles uncover temporal and stress-induced changes of metabolic pathways in germinating sugar beet seeds

Functional category

Cluster k1

Cluster k2

 

k1.1

k1.2

Total

k2.1

k2.2

Total

Transcription

11

5

16

-

-

-

Seed specific proteins

      

   Storage proteins

6

6

12

-

2

2

   Maturation proteins

10

10

20

-

-

-

RNA metabolism

8

4

12

2

-

2

Protein metabolism

      

   Protein biosynthesis

13

16

29

17

9

26

   Post-translation modification and folding

17

1

18

17

13

30

   Protein catabolism

12

4

16

8

4

12

Amino acid metabolism

      

   Methionine cycle

-

-

-

3

1

4

   Other amino acid metabolism

2

-

2

2

-

2

Lipid metabolism

      

   Lipid biosynthesis

1

-

1

-

1

1

   Lipid degradation

1

-

1

4

-

4

Carbohydrate metabolism

      

   Starch, sucrose biosynthesis

-

-

-

-

2

2

   Starch degradation

-

-

-

1

1

2

   Other

-

1

1

2

2

4

Secondary metabolism

      

   Cell wall biosynthesis

-

-

-

3

3

6

   Cell wall loosening

-

-

-

2

4

6

Metabolism of various compounds

7

2

9

16

8

24

Energy

      

   Glycolysis

1

-

1

3

7

10

   Gluconeogenesis

-

-

-

-

1

1

   Glyoxylate cycle

-

-

-

1

-

1

   Pentose phosphate pathway

-

-

-

2

5

7

   Tricarboxylic acid cycle

-

-

-

4

1

5

   Photorespiration

-

-

-

4

2

6

   Photosynthesis

1

-

1

1

6

7

   Mitochondrial energy conversion

-

-

-

8

2

10

Phytohormone regulation

1

-

1

1

3

4

Transport

16

5

21

15

13

28

Signal transduction

8

4

12

4

4

8

Response to stress

9

1

10

8

11

19

Cell cycle and DNA processing

2

-

2

15

3

18

Unclassified

11

2

13

2

2

4

Unidentified function

44

24

68

18

28

46

Not significant homology (> 1e-20)

44

20

64

24

19

43

Total

225

105

330

187

157

344