Table 1.

Candidate reference genes for qRT-PCR

Abbreviation	Gene name	Function
18S	18S Ribosomal RNA	Ribosomal subunit
ACTB	β-actin	Cytoskeletal structural protein
B2M	β-2-microglobulin	β-chain of major histocompatibility complex class I molecules
GAPDH	Glyceraldehyde-3- phosphate dehydrogenase	Oxidoreductase in glycolysis and gluconeogenesis
GUSB	beta-glucuronidase	Degradation of determatan and keratin sulfates
HPRT1	Hypoxanthine phosphoribosyl transferase 1	Purine synthesis in salvage pathway
PGK1	Phosphoglycerate kinase 1	Glycolytic enzyme
PPIA	Peptidylprolyl isomerase A	Catalyzes the cis-trans isomerisation of praline, accelerates protein folding
RPLP0	Ribosomal large P0	Ribosomal protein, translation
TBP	TATA binding protein	RNA polymerase II transcription factor