Phylogenetic and recombination analysis of genomic sequences of IHHNV

Abstract

Infectious hypodermal and hematopoietic necrosis virus (IHHNV) is one of the most recurrent viral pathogens infecting penaeid shrimps. Although previous reports showed that genomic recombination happened among different IHHNV strains, no study has been carried out to systematically elucidate such recombination. In this study, we performed the phylogenetic and recombination analysis of IHHNV the available complete genomes sequences in GenBank. We have found two intra-group recombination between lineages III and II of infectious group, one inter-lineage recombination between lineage II of infectious group and non-infectious group among IHHNV strains.