<p><i>CsBAFF</i> expression in the intestine, brain, gill, muscle, heart, blood, liver, kidney, and spleen was determined by quantitative real time RT-PCR. For the convenience of comparison, the expression level of <i>CsBAFF</i> in intestine (Ct value of 8.9) was set as 1. Vertical bars represent means ± SEM (N = 3). N, the number of times the experiment was performed.</p