This research has been carried as a part of Ph.D thesis of Gangatharan S, funded by TANII project entitled "E-Fish health surveillance and monitoring network to improve fisheries production in Tamil Nadu". Ph.D research guide and Principal investigator of the project Dr.A.Uma Ph.D Professor and Head, State Referral Laboratory for Aquatic Animal Health, Tamil Nadu Dr. J. Jayalalithaa Fisheries University, Madhavaram Campus, Chennai - 600051.</p><p>This project contains De novo transcripts of 4 samples</p><p>Liver from healthy koi carp (Cyprinus carpio) (2 samples) Control MCFK1 and Control MCFK2</p><p>Liver from infected koi carp (Cyprinus carpio) (2 samples) Infected MIFK1 and Infected MIFK2