What question did this study set out to answer?

Establish statistical methods for verifying cospeciation in host-parasite assemblages and evaluate how genetic distance data can determine relative evolutionary rates and divergence timing.

September 1, 1990Systematic Zoology

Cospeciation in Host-Parasite Assemblages: Comparative Analysis of Rates of Evolution and Timing of Cospeciation Events

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Authors

MHMark S. HafnerDrexel University SNSteven A. NadlerNorthern Illinois University

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Implication

Comparative analysis demonstrates genetic distance matrix testing to resolve evolutionary rates in pocket gophers and lice, highlighting a framework for validating cospeciation timing.

Key Points

Establish statistical methods for verifying cospeciation in host-parasite assemblages and evaluate how genetic distance data can determine relative evolutionary rates and divergence timing.
Applied a nonparametric test of association between host and parasite genetic-distance matrices to determine whether phylogenetic congruence exceeds chance expectations.
Conducted bivariate analyses on correlated distance matrices to evaluate relative rates of genetic change.
Demonstrated the analytical framework using an empirical model system of pocket gophers and chewing lice.
Identified that conventional cospeciation tests frequently risk violating the core assumption of phylogenetic independence between hosts and parasites.
Demonstrated that significant associations between host and parasite genetic distances allow researchers to model differential evolutionary rates and reconstruct the sequence of shared speciation events.

Cite This Study

Hafner et al. (1990) studied this question.

synapsesocial.com/papers/6a86ba433a1d8ec5fdd3b886 https://doi.org/10.2307/2992181

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Implication

Comparative analysis demonstrates genetic distance matrix testing to resolve evolutionary rates in pocket gophers and lice, highlighting a framework for validating cospeciation timing.

Cospeciation in Host-Parasite Assemblages: Comparative Analysis of Rates of Evolution and Timing of Cospeciation Events

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Implication

Key Points

Cite This Study

Cospeciation in Host-Parasite Assemblages: Comparative Analysis of Rates of Evolution and Timing of Cospeciation Events

Discussion

Member takes

Implication

Key Points

Cite This Study

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