Fig. 4.

PCA and phylogenetic PCAs of conotoxin superfamily expression. a) PCA shows that venom composition correlates with prey type. b) pPCA of venom composition based on Bayesian tree demonstrates prey-driven evolution of venom composition in piscivorous cone snail species. However, the separation of vermivores and molluscivores does not hold up when adjusted for phylogeny. Bayesian tree topology is depicted by black lines connecting individual points. Prey preference is indicated by the color of the points.