Figure 11.3. Alternative phylogenetic pattern that clusters P1 with P2 and P3 with P4.

Figure 11.3

Alternative phylogenetic pattern that clusters P1 with P2 and P3 with P4. The white lineages share the P1/P3 immunological grouping and the black lineages share the P2/P4 immunological grouping shown in fig. 11.1. The gray lineages show that the immunological type for the ancestors of each phylogenetic group cannot be resolved.

From: Chapter 11, Classifications by Antigenicity and Phylogeny

Cover of Immunology and Evolution of Infectious Disease
Immunology and Evolution of Infectious Disease.
Frank SA.
Princeton (NJ): Princeton University Press; 2002.
Copyright © 2002, Steven A Frank.

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