Fig. 4From: Validation of housekeeping genes as candidate internal references for quantitative expression studies in healthy and nervous necrosis virus-infected seven-band grouper (Hyporthodus septemfasciatus)Time-dependent expression profile of housekeeping genes following NNV infection in the tissues of seven-band grouper. a Mean Ct value of housekeeping gene transcription in grouper tissues following NNV infection (n = 5). b Linear regression curve of housekeeping gene expression (p < 0.05, n = 5)Back to article page