Fig. 3
From: Evolution of tetraspanin antigens in the zoonotic Asian blood fluke Schistosoma japonicum
Signatures of selection acting upon seven tetraspanin (TSP) genes in Schistosoma japonicum. A The mean distribution of non-synonymous (dN) and synonymous (dS) mutations per TSP, averaged among all codons across the whole gene, or B among all codons within the region encoding the large extracellular loop (LEL) domain only. Mutations were estimated across all codons using DNASP and were plotted using PAST [82]