Table 2 Functional annotation of the significant expanded and contracted gene families in Muscovy duck

Expanded gene families

ABC transporters

12

1.97E-10

Calcium signaling pathway

18

3.32E-08

Adrenergic signaling in cardiomyocytes

14

2.31E-07

GnRH signaling pathway

12

3.94E-07

Arginine and proline metabolism

7

1.29E-05

Adherens junction

9

1.52E-05

Pentose and glucuronate interconversions

5

4.86E-05

Neuroactive ligand-receptor interaction

17

2.81E-04

Biosynthesis of amino acids

7

3.03E-04

Tight junction

11

3.46E-04

Cell adhesion molecules (CAMs)

9

4.00E-04

Fructose and mannose metabolism

5

4.26E-04

Vascular smooth muscle contraction

9

5.44E-04

Regulation of actin cytoskeleton

11

9.36E-04

Ubiquitin mediated proteolysis

9

9.59E-04

Focal adhesion

11

1.54E-03

Melanogenesis

7

2.98E-03

Retinol metabolism

4

3.39E-03

Fatty acid biosynthesis

3

4.49E-03

Protein processing in endoplasmic reticulum

8

7.15E-03

ECM-receptor interaction

6

7.38E-03

Cardiac muscle contraction

5

9.44E-03

Oocyte meiosis

6

1.21E-02

Intestinal immune network for IgA production

3

2.06E-02

Mitophagy - animal

4

2.17E-02

Propanoate metabolism

3

2.43E-02

Pyruvate metabolism

3

2.63E-02

Herpes simplex virus 1 infection

6

3.79E-02

Primary bile acid biosynthesis

2

4.05E-02

Contracted gene families

Necroptosis

17

5.71E-05

Histidine metabolism

5

5.31E-03

β-Alanine metabolism

5

1.81E-02

Ascorbate and aldarate metabolism

3

2.02E-02