Quantitative PCR was performed in triplicate using GoScriptTM qPCR mastermix (Promega) according to the manufacturer’s protocol and run in a LightCyclerÒ 480 (Roche) with an initial denaturing at 95 °C for 10 min, followed by 40 cycles of 95 °C for 10 s, 60 °C for 30 s, 72 °C for 30 s, with fluorescence detection at the end of each cycle.