Epidemiology of Rotavirus A in Nigeria: Molecular Diversity and Current Insights

Figure 3

Phylogenetic analysis of the partial VP4 (P) gene sequences of Nigerian rotavirus strains from 1994 to 2015. Clinical isolates submitted to Genbank before the year 2000 are shown in blue. Genotype assignments are indicated by the side of the horizontal bars in the tree. The light grey shaded region shows isolates belonging to lineage III genotype P, while the light purple shaded region shows isolates belonging to lineage I genotype P. The phylogenetic tree was constructed using neighbor joining algorithm in MEGA 6.0 with 1000 bootstrap replicates. The scale bar indicates number of substitutions per site.