Diversity of transcripts of toll-like receptors in hemocytes of Planorbarius corneus mollusсs (Gastropoda, Pulmonata) uninfected and infected with Bilharziella polonica trematodes

Abstract

Transcriptome of hemocytes from uninfected Planorbarius corneus snails and snails naturally infected with Bilharziella polonica (Schistosomatidae) was obtained and analyzed. Transcripts encoding all groups of immune factors previously described for other gastropods were found. Pathogen recognition molecules are the most diverse group of transcripts encoding immunity factors. Toll-like receptors of 11 types were identified. No differences in the set of toll-like receptors between infected and uninfected mollusсs were found. The data obtained expand our knowledge on immune reactions of snails to trematode invasion and make it possible to consider Planorbarius corneus as a new model for studying molluscs immune reactions.