Channel catfish (Ictalurus punctatus) is one of the most important
aquaculture species worldwide. To date, all of the reported teleost
TLR genes, except TLR23, have been identified and sequenced in
catfish. In addition, TLR25 and TLR26, two previously unknown
TLRs, were found in catfish [12,13]. Thus, this species has one of the
most complete sets of TLRs known for teleosts. Ichthyophthirius