Figure 1
From: Genetic variations of nucleoprotein gene of influenza A viruses isolated from swine in Thailand
Phylogenetic tree of NP gene of influenza viruses recovered from swine, human and avian hosts in Thailand. The trees were generated using MEGA 4.0 applying the neighbor-joining algorithm. Tree topology was supported with bootstrap analysis with 1000 replicates and posterior probability from BMCMC analysis (Bootstrap, posterior probability). The swine influenza viruses characterized in the study are presented as triangles.