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

Hafner, Mark S.; Nadler, Steven A.

doi:10.2307/2992181

Cited by 130 publications

(109 citation statements)

References 27 publications

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“…In terms of cospeciation sensu Brooks (1979), there is only about 50% cospeciation in the phylogenies presented by Hafner and Nadler (1990) and, accordingly, their data support the decoupling of co-accommodationindicated by the equivalence of genetic divergence and narrow host range from cospeciation-indicated by the degree of concordance-discordance in the phylogenetic trees of hosts and parasites. That is, if there is a 50% departure from cospeciation, then this explains the discrepancies in the genetic divergence data between hosts and parasites noted by Hafner and Nadler (1990), and perhaps the data did not need to be ''fixed'' after all. Hafner and Nadler (1988), in contrast, argued that the lack of concordance between host and parasite phylogenies was due to error in inferring one or both phylogenies.…”

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confidence: 72%

“…1). Hafner and Nadler (1990) subsequently made it clear that two factors were more important than either the congruence or incongruence of host and parasite phylogenetic trees for their conception of cospeciation. These factors were narrow host range and the equivalence of genetic divergence, which Brooks (1979) had associated with co-accommodation as opposed to cospeciation.…”

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confidence: 99%

“…Because Hafner and Nadler (1990) already ''knew'' that theirs was a case of cospeciation, they knew exactly how to fix the parasite data to bring them into line with the host data, even though their original study showed significant disagreement between the host and parasite phylogenies. In terms of cospeciation sensu Brooks (1979), there is only about 50% cospeciation in the phylogenies presented by Hafner and Nadler (1990) and, accordingly, their data support the decoupling of co-accommodationindicated by the equivalence of genetic divergence and narrow host range from cospeciation-indicated by the degree of concordance-discordance in the phylogenetic trees of hosts and parasites.…”

mentioning

confidence: 99%

“…Moreover, if they were of the same age, they then reasoned they must be the products of cospeciation. Significantly, Hafner and Nadler (1990) acknowledged that the genetic divergence data were not actually equivalent but explained away the apparent discordance based on the assumptions that (1) the problem was due to discrepancies in the Figure 1. Phylogenies of pocket gophers and lice (redrawn and modified from Nadler, 1988, 1990) with phylogenetically incongruent nodes highlighted.…”

mentioning

confidence: 99%

“…These factors were narrow host range and the equivalence of genetic divergence, which Brooks (1979) had associated with co-accommodation as opposed to cospeciation. Hafner and Nadler (1990) reasoned that parasite species limited to a single host species, and host and parasite lineages exhibiting equivalent genetic divergence, must be the same age. Moreover, if they were of the same age, they then reasoned they must be the products of cospeciation.…”

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confidence: 99%

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In the Eye of the Cyclops: The Classic Case of Cospeciation and Why Paradigms are Important

Brooks¹,

Hoberg

Boeger

2015

Comparative Parasitology

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confidence: 72%

mentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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In the Eye of the Cyclops: The Classic Case of Cospeciation and Why Paradigms are Important

Brooks¹,

Hoberg

Boeger

2015

Comparative Parasitology

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An updated phylogeny, biogeography, and PhyloCode‐based classification of Cornaceae based on three sets of genomic data

Xiang

Cheng

et al. 2023

American J of Botany

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Premise A major goal of systematic biology is to uncover the evolutionary history of organisms and translate that knowledge into stable classification systems. Here, we integrate three sets of genome‐wide data to resolve phylogenetic relationships in Cornaceae (containing only Cornus s.l.), reconstruct the biogeographic history of the clade, and provide a revised classification using the PhyloCode to stabilize names for this taxonomically controversial group. Methods We conducted phylogenetic analyses using 312 single‐copy nuclear genes and 70 plastid genes from Angiosperms353 Hyb‐Seq, plus numerous loci from RAD‐Seq. We integrated fossils using morphological data and produced a dated phylogeny for biogeographical analysis. Results A well‐resolved, strongly supported, comprehensive phylogeny was obtained. Biogeographic analyses support an origin and rapid diversification of Cornus into four morphologically distinct major clades in the Northern Hemisphere (with an eastern Asian ancestor) during the late Cretaceous. Dispersal into Africa from eastern Asia likely occurred along the Tethys Seaway during the Paleogene, whereas dispersal into South America likely occurred during the Neogene. Diversification within the northern hemisphere likely involved repeated independent colonization of new areas during the Paleogene and Neogene along the Bering Land Bridge, the North Atlantic Land Bridge, and the Tethys Seaway. Thirteen strongly supported clades were named following rules of the PhyloCode. Conclusions Our study provides an example of integrating genomic and morphological data to produce a robust, explicit species phylogeny that includes fossil taxa, which we translate into an updated classification scheme using the PhyloCode to stabilize names.

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Pseudocospeciation of the mycoparasite Cosmospora with their fungal hosts

Herrera

Hirooka

Chaverri

2016

Ecology and Evolution

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Species of Cosmospora are parasites of other fungi (mycoparasites), including species belonging to the Xylariales. Based on prior taxonomic work, these fungi were determined to be highly host specific. We suspected that the association of Cosmospora and their hosts could not be a result of random chance, and tested the cospeciation of Cosmospora and the their hosts with contemporary methods (e.g., ParaFit, PACo, and Jane). The cophylogeny of Cosmospora and their hosts was found to be congruent, but only host‐parasite links in more recent evolutionary lineages of the host were determined as coevolutionary. Reconciliation reconstructions determined at least five host‐switch events early in the evolution of Cosmospora. Additionally, the rates of evolution between Cosmospora and their hosts were unequal. This pattern is more likely to be explained by pseudocospeciation (i.e., host switches followed by cospeciation), which also produces congruent cophylogenies.

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

Cited by 130 publications

References 27 publications

In the Eye of the Cyclops: The Classic Case of Cospeciation and Why Paradigms are Important

In the Eye of the Cyclops: The Classic Case of Cospeciation and Why Paradigms are Important

An updated phylogeny, biogeography, and PhyloCode‐based classification of Cornaceae based on three sets of genomic data

Pseudocospeciation of the mycoparasite Cosmospora with their fungal hosts

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