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Table 2 IPA downstream effects analysis performed on genes differentially expressed in distal gut of Atlantic salmon

From: Differential responses of the gut transcriptome to plant protein diets in farmed Atlantic salmon

Diet/Function

Predicted activation state

Activation z-score

P-value

Number of genesa

consistentb

inconsistentc

unknownd

S45 (diet with 45 % of soy protein concentrate)

 synthesis of steroid

Increased

2.0

2.2E-03

4

0

4

 concentration of triacylglycerol

Decreased

−2.4

1.1E-03

8

1

0

B45 (diet with 45 % of bean protein concentrate)

 cell-cell adhesion

Decreased

−2.6

8.0E-07

7

0

7

 growth of epithelial tissue

Decreased

−2.4

3.2E-05

17

7

2

 development of blood vessel

Decreased

−2.1

3.5E-05

16

6

4

 cell movement of epithelial cells

Decreased

−2.0

2.7E-05

8

2

0

 cell death of smooth muscle cells

Decreased

−2.1

1.3E-03

6

1

0

 apoptosis of connective tissue cells

Decreased

−2.1

3.3E-03

8

2

1

Soybean meal (SBM) diet

 proliferation of cells

Increased

2.4

4.7E-15

125

90

52

 binding of DNA

Increased

2.3

1.5E-05

28

14

6

 synthesis of protein

Increased

2.1

6.6E-07

22

10

12

 synthesis of lipid

Increased

2.4

1.6E-06

30

15

20

 metabolism of carbohydrate

Increased

2.6

1.5E-04

16

4

30

 organization of cytoplasm

Increased

2.3

2.4E-04

38

21

38

 cellular homeostasis

Increased

2.4

2.0E-05

43

27

37

 cell movement

Increased

3.4

1.1E-07

87

47

15

 cell death

Decreased

−2.1

6.5E-14

124

88

36

 autophagy

Increased

2.5

1.6E-04

18

6

6

  1. aGenes are listed in Additional file 10; bGenes with the direction of expression consistent with the predicted activation state of the function (e.g., gene encoding CD28 molecule is known to decrease cell proliferation and is down-regulated in the SBM dataset, therefore predicted to increase the function); cGenes with the direction of expression inconsistent with the predicted activation state of the function (e.g., gene encoding DIABLO is known to decrease cell proliferation and is up-regulated in the SBM dataset, therefore predicted to decrease the function); dGenes involved in the function with currently unknown effects