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Table 3 Pathway enrichment analysis of up-regulated pathways in swiftlet salivary glands

From: De novo transcriptome analysis shows differential expression of genes in salivary glands of edible bird’s nest producing swiftlets

AA versus Aerodramus species

Number of pathways up-regulated

Top 3 regulated pathway

AA

328

- Translation factors (27.4%)

- mRNA processing (10.9%)

- Spliceosome (8.8%)

Aerodramus species

341

- mRNA processing (15.5%)

- Protein export (14.4%)

- Squamous cell TarBase (9.1%)

AFC versus AMC

Number of pathways up-regulated

Top 3 regulated pathway

AFC

152

- PI3K-Akt signaling pathway (46%)

- Ribosome biogenesis in eukaryotes (12.5%)

- Cardiac muscle contraction (6.5%)

AMC

120

- Ras signalling pathway (38%)

- MAPK signalling pathway (29%)

- Proteasome (20%)

AFM versus AFC

Number of pathways up-regulated

Top 3 regulated pathway

AFM

34

- Galactose metabolism (38%)

- Endocytosis (15%)

- Oxidative phosphorylation (15%)

AFC

7

- Mitochondrial fatty acid oxidation (43%)

- RNA transport (29%)

- Proteoglycan (29%)

Gender comparison

AFC

Number of pathways up-regulated

Top 3 regulated pathway

Female

34

-DNA repair (61%)

-Circadian clock (20%)

-Cell cycle (12%)

Male

25

-Mitochondrial protein (40%)

-Peptide hormone metabolism (23%)

-Muscle contraction (15%)

AFM

Number of pathways up-regulated

Top 3 regulated pathway

Female

0

-NA

Male

15

-Transmembrane transport of small molecule (17.5%)

-Protein metabolism (5.8%)

-Signal transduction (5.1%)

AMC

Number of pathways up-regulated

Top 3 regulated pathway

Female

13

-Organelle biogenesis and maintenance (23%)

-Muscle contraction (17%)

-Axon guidance (9%)

Male

5

-Vesicle-mediated transport (38%)

-Extracellular matrix transport (29%)

-Signal transduction (23%)

  1. AFC Aerodramus fuciphagus from cave
  2. AFM Aerodramus fuciphagus from man-made house
  3. AMC Aerodramus maximus from cave
  4. AA Apus affinis
  5. NA No regulated pathways with p-value <0.05 was identified