Phylogeny And Biogeography of the Carnivorous Plant Family Sarraceniaceae

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Phylogeny And Biogeography of the Carnivorous Plant Family Sarraceniaceae

Show simple item record Davis, Charles Cavender Ellison, Aaron M. Butler, Elena D. Hicks, Emily Jean Calie, Patrick J. Bell, Charles D. Naczi, Robert F. C. 2012-09-24T20:18:13Z 2012
dc.identifier.citation Ellison, Aaron M., Elena D. Butler, Emily Jean Hicks, Robert F. C. Naczi, Patrick J. Calie, Charles D. Bell, and Charles C. Davis. 2012. Phylogeny and biogeography of the carnivorous plant family Sarraceniaceae. PLoS ONE 7(6): e39291. en_US
dc.identifier.issn 1932-6203 en_US
dc.description.abstract The carnivorous plant family Sarraceniaceae comprises three genera of wetland inhabiting pitcher plants: Darlingtonia in the northwestern United States, Sarracenia in eastern North America, and Heliamphora in northern South America. Hypotheses concerning the biogeographic history leading to this unusual disjunct distribution are controversial, in part because genus- and species-level phylogenies have not been clearly resolved. Here, we present a robust, species-rich phylogeny of Sarraceniaceae based on seven mitochondrial, nuclear, and plastid loci, which we use to illuminate this family's phylogenetic and biogeographic history. The family and genera are monophyletic: Darlingtonia is sister to a clade consisting of Heliamphora+Sarracenia. WithinSarracenia, two clades were strongly supported: one consisting of S. purpurea, its subspecies, and S. rosea; the other consisting of nine species endemic to the southeastern United States. Divergence time estimates revealed that stem group Sarraceniaceae likely originated in South America 44–53 million years ago (Mya) (highest posterior density [HPD] estimate = 47 Mya). By 25–44 (HPD = 35) Mya, crown-group Sarraceniaceae appears to have been widespread across North and South America, and Darlingtonia (western North America) had diverged from Heliamphora+Sarracenia (eastern North America+South America). This disjunction and apparent range contraction is consistent with late Eocene cooling and aridification, which may have severed the continuity of Sarraceniaceae across much of North America. Sarracenia and Heliamphora subsequently diverged in the late Oligocene, 14–32 (HPD = 23) Mya, perhaps when direct overland continuity between North and South America became reduced. Initial diversification of South American Heliamphora began at least 8 Mya, but diversification of Sarracenia was more recent (2–7, HPD = 4 Mya); the bulk of southeastern United States Sarraceniaoriginated co-incident with Pleistocene glaciation, < 3 Mya. Overall, these results suggest climatic change at different temporal and spatial scales in part shaped the distribution and diversity of this carnivorous plant clade. en_US
dc.description.sponsorship Organismic and Evolutionary Biology en_US
dc.language.iso en_US en_US
dc.publisher Public Library of Science en_US
dc.relation.isversionof doi:10.1371/journal.pone.0039291 en_US
dash.license OAP
dc.title Phylogeny And Biogeography of the Carnivorous Plant Family Sarraceniaceae en_US
dc.type Journal Article en_US
dc.description.version Accepted Manuscript en_US
dc.relation.journal PLoS en_US Davis, Charles Cavender 2012-09-24T20:18:13Z

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