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Reference gene selection for quantitative PCR studies in bovine neutrophils

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DOI: 10.4236/abb.2013.410A3002    3,373 Downloads   5,313 Views   Citations

ABSTRACT

Reference genes are essential for studying mRNA expression with quantitative PCR (qPCR). We investigated 11 candidate whole-blood neutrophil reference genes (ACTB, B2M, G6PD, GAPDH, GYPC, HPRT, PGK1, RPL19, SDHA, TFRC, and YWHAZ) for beef calves, both males and females, with or without selenium supplementation. Initial screening was based on gene expression level (<28 Cq cycles), variability (SD < 1.5 Cq cycles), excluded GYPC and TFRC from further analysis. Expression stability of the remaining genes was evaluated using four software programs: geNorm, NormFinder, BestKeeper, and the comparative delta Cq method. The neutrophil reference genes, YWHAZ, PGK1, and RPL19, consistently ranked among the top four most stable genes under these experimental conditions. The commonly used reference genes, ACTB and HPRT, were not reliable, underscoring the need to validate neutrophil reference genes under different experimental conditions. Multiple reference genes rather than a single gene may provide more robust and reliable results. The best pair of reference genes in whole-blood neutrophils from beef calves overall was PGK1|YWHAZ.  

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Vorachek, W. , Bobe, G. and Hall, J. (2013) Reference gene selection for quantitative PCR studies in bovine neutrophils. Advances in Bioscience and Biotechnology, 4, 6-14. doi: 10.4236/abb.2013.410A3002.

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