Comparative Dating Of Attine Ant And Lepiotaceous Cultivar Phylogenies Reveals Coevolutionary Synchrony And Discord

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dc.contributor.utaustinauthorMikheyev, Alexander S.en
dc.contributor.utaustinauthorMueller, Ulrich G.en
dc.creatorMikheyev, Alexander S.en
dc.creatorMueller, Ulrich G.en
dc.creatorAbbot, Patricken
dc.date.accessioned2015-09-09T15:51:47Zen
dc.date.available2015-09-09T15:51:47Zen
dc.date.issued2010-06en
dc.description.abstractThe mutualistic symbiosis between fungus-gardening ants and their cultivars has made fundamental contributions to our understanding of the coevolution of complex species interactions. Reciprocal specialization and vertical symbiont cotransmission are thought to promote a pattern of largely synchronous coevolutionary diversification in attines. Here we test this hypothesis by inferring the first time-calibrated multigene phylogeny of the lepiotaceous attine cultivars and comparing it with the recently published fossil-anchored phylogeny of the attine ants. While this comparison reveals some possible cases of synchronous origins of ant and fungal clades, there were a number of surprising asynchronies. For example, leaf-cutter cultivars appear to be significantly younger than the corresponding ant genera. Similarly, a clade of fungi interacting with primitive fungus-gardening ants-thought to be ancestral to the more derived leaf-cutter symbionts-appears instead to be a more recent acquisition from free-living stock. These macroevolutionary patterns are consistent with recent population-level studies suggesting occasional acquisition of novel cultivar types from environmental sources and horizontal transmission of cultivars between different ant species. Horizontal transmission events, even if rare, appear to form loose ecological connections between diffusely coevolving ant and fungus lineages that permit punctuated changes in the topology of the mutualistic ant-fungus interaction network.en
dc.description.departmentIntegrative Biologyen
dc.description.sponsorshipen
dc.identifier.citationAlexander S. Mikheyev, Ulrich G. Mueller, Patrick Abbot. Comparative Dating Of Attine Ant And Lepiotaceous Cultivar Phylogenies Reveals Coevolutionary Synchrony And Discord. The American Naturalist, Vol. 175, No. 6 (June 2010), pp. E126-E133. DOI: 10.1086/652472en
dc.identifier.doi10.1086/652472en
dc.identifier.issn0003-0147en
dc.identifier.urihttp://hdl.handle.net/2152/31254en
dc.identifier.urlen
dc.language.isoEnglishen
dc.relation.ispartofserialAmerican Naturalisten
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en
dc.rights.holderen
dc.subjectacromyrmexen
dc.subjectattaen
dc.subjectattinien
dc.subjectcoevolutionen
dc.subjectlepiotaceaeen
dc.subjectleucoagaricusen
dc.subjectfungus-growing antsen
dc.subjectleaf-cutting antsen
dc.subjectmutualistic networksen
dc.subjectbacterialen
dc.subjectendosymbiontsen
dc.subjectinteraction specificityen
dc.subjectevolutionary historyen
dc.subjecthost-specificityen
dc.subjectsymbiontsen
dc.subjectagricultureen
dc.subjectcospeciationen
dc.subjectecologyen
dc.subjectevolutionary biologyen
dc.titleComparative Dating Of Attine Ant And Lepiotaceous Cultivar Phylogenies Reveals Coevolutionary Synchrony And Discorden
dc.typeArticleen

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