FIG. 2.
RT-PCR screen for differential expression of candidate genes. Semiquantitative PCR assay was performed on cDNA from rainbow trout leukocytes, after incubation with VHSV (V) or with culture medium as a control (C). The cDNA samples (V and C) were first normalized on the basis of actin expression and then subjected to PCR amplification with primers specific for each candidate gene.