Ecology and Evolution (2016) 6, 1504-1514

Cesar S. Herrera, Yuuri Hirooka and Priscila Chaverri (2016)
Pseudocospeciation of the mycoparasite Cosmospora with their fungal hosts
Ecology and Evolution 6 (5), 1504-1514
Abstract: 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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Database assignments for author(s): Priscila Chaverri, Yuuri Hirooka

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
molecular biology - genes
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Eutypa lata
	Kretzschmaria deusta
	Hypoxylon fragiforme
	Diatrype stigma
Dialonectria episphaeria (antagonist)	Diatrype stigma
Pseudocosmospora eutypae (antagonist)	Eutypa lata
Cosmospora arxii (antagonist)	Hypoxylon fragiforme
Cosmospora ustulinae (antagonist)	Kretzschmaria deusta