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Table 4 Key differentially methylated genes possibly related to hypoxic adaption in Tibetan pigs

From: Genome-wide DNA methylation profiles in Tibetan and Yorkshire pigs under high-altitude hypoxia

Gene

Description

TH vs. YH

TL vs. YL

TH vs. TL

YH vs. YL

Functional annotation

AKT3

AKT serine/threonine kinase 3

+

HIF-1 signaling pathway, VEGF signaling pathway, pathways in cancer

ANGPT2

Angiopoietin 2

+

+

+

Angiogenesis, HIF-1 signaling pathway

CAT

Catalase

+

Oxygen species, apoptosis process, mitochondrion

CD38

Cluster of differentiation 38

+

+

+

+

Calcium signaling pathway

EIF4E2

Eukaryotic translation initiation factor 4E family member 2

+

HIF-1 signaling pathway, mTOR signaling pathway, insulin signaling pathway

EPAS1

Endothelial PAS domain protein 1

+

+

Angiogenesis, mitochondrion, response to hypoxia

ERG

ETS transcription factor-related gene

+

+

+

+

Cell differentiation

FADD

Fas associated via death domain

+

Apoptosis, pathways in cancer

FGFR2

Fibroblast growth factor receptor 2

+

+

+

Angiogenesis, Pathways in cancer

FOXO1

Forkhead box O1

+

+

Apoptotic process, response to hyperoxia

GRB2

Growth factor receptor bound protein 2

+

MAPK signaling pathway, insulin signaling pathway, pathways in cancer

HK2

Hexokinase 2

+

+

HIF-1 signaling pathway

ICA

Porcine inhibitor of carbonic anhydrase

+

+

+

HIF-1 signaling pathway

IGF1R

Insulin-like growth factor 1 receptor

+

+

Apoptosis process, HIF-1 signaling pathway

IL6R

Interleukin 6 receptor

+

HIF-1 signaling pathway, PI3K-Akt signaling pathway

KIT

KIT proto-oncogene receptor tyrosine kinase

+

+

Inflammatory response, ATP binding, pathways in cancer

MAP2K1

Mitogen-activated protein kinase 1

+

+

HIF-1 signaling pathway, VEGF signaling pathway

SMAD2

SMAD family member 2

+

TGF-beta signaling pathway

STAT5B

Signal transducer and activator of transcription 5B

+

Apoptosis process, erythrocyte differentiation, pathways in cancer

  1. Note: “+” represents differentially methylated genes in some comparisons. “-” represents no differentially methylated genes. TH, Tibetan highland pig; YH, Yorkshire highland pig; TL, Tibetan lowland pig; YL, Yorkshire lowland pig