Hsp70 expression in different tissues of the six lizards species detected by quantitative real time reverse transcriptase PCR. Hsp70 expression levels in different organs were normalized to that of β-actin mRNA. For Takydromus, the normalized Hsp70 mRNA level in liver was set as 1. For P. chinensis, Sp. indicus and Sc. modesta, the normalized Hsp70 mRNA level in lung was set as 1. Vertical bars represent means±SE (n=5).