Mytilus galloprovincialis is a bivalve mollusc of great commercial interest
worldwide that lives anchored to the rocks and has a filtering way of life. Despite being constantly exposed to
pathogens, no mass mortality events have been recorded in the natural environment (something that has occurred
with other bivalve species such as oysters or clams). This immune resistance seems to reside in the great
variability of immune molecules that the mussel genome encodes. Because of that, it has become interesting to
study the immune response in infection situations, as well as the analysis of variability and function of some key
peptides in the defense to diseases of these animals
