Fig. 2From: Sequence Polymorphism in Two Novel Plasmodium vivax Ookinete Surface Proteins, Pvs25 and Pvs28, That Are Malaria Transmission-blocking Vaccine CandidatesPhylogenetic tree for the genus Plasmodium based on the amino acid sequences of ookinete surface proteins. The length of the horizontal lines connecting one sequence to another is proportional to the estimated genetic distance between the sequences. Numbers above each branch reflect the branch length.Back to article page