Nine genes involved in mitochondrial functions, of which 2 are encoded by mtDNA, were selected for qPCR validation. Using GenBank or
Sus Scrofa Gene Index (SsGI) release 12.0, primers were designed to generate PCR products that harbored probe sequences of the microarray (
Table 1). Tubulin beta-2 (
TBB2) and the reference RNA were used as the internal control and as the calibrator, respectively. qPCR was performed with
ABI 7500 Fast Real-Time PCR System (Applied Biosystems). Briefly, 2 ng of cDNA in a 20 μl reaction mixture [1X
SYBR Green PCR master mix (Applied Biosystems), 0.3 μM of each primer] was subjected to an initial denaturation at 95°C for 10 min, followed by 40 cycles of denaturation at 95°C for 15 sec and annealing/extension at 60°C for 1 min. Data were analyzed using
ABI prism SDS software (Applied Biosystems), and the relative expression levels of the target genes were calculated using the comparative C
T method according to the manufacturer’s instruction. Parametric data were tested for equal variance by using an F-test, and when it was not significant, data were subject to one-sided t-test (
p < 0.05).
Park J., Lai L., Samuel M.S., Wax D., Prather R.S, & Tian X. (2015). Disruption of Mitochondrion-To-Nucleus Interaction in Deceased Cloned Piglets. PLoS ONE, 10(6), e0129378.