@ARTICLE{TreeBASE2Ref19278, author = {Amanda D Roe and Adrianne V Rice and David W Coltman and Janice EK Cooke and Felix A.H. Sperling}, title = {Comparative phylogeography, genetic differentiation, and contrasting reproductive modes in three fungal symbionts of a multipartite bark beetle symbiosis}, year = {2010}, keywords = {comparative phylogeography, congruence analysis, multilocus sequence typing, Dendroctonus ponderosae, fungi, multipartite symbiosis}, doi = {}, url = {http://}, pmid = {}, journal = {Molecular Ecology}, volume = {}, number = {}, pages = {}, abstract = {Multipartite symbioses are complex symbiotic relationships involving multiple interacting partners. These partnerships provide an excellent system in which to apply a comparative approach to identify common historical patterns of population differentiation and species-specific life history traits. Using three symbiotic blue stain fungal species (Ophiostomatacea) associated with outbreaking populations of the mountain pine beetle (Dendroctonus ponderosae Hopkins) in western Canada, we applied phylogenetic, population genetic, and demographic approaches to identify similar and contrasting phylogeographic patterns among the three fungal species. Broadly, the three species showed significant population differentiation, forming northern and southern populations, despite dramatic differences in haplotype diversity. Finer scale structuring and population demographic patterns were less consistent, showing some interspecific incongruence. By contrasting these species simultaneously, we were able to identify differences in reproductive mode and recombination rate that, in turn, can explain the observed patterns of incongruence among the fungal species. By applying a comparative approach to partners of a multipartite symbiosis we were able to distinguish congruent population structuring and species-specific differences that help us to understand the complexity and evolution of this symbiotic system.} }

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