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Phylogeny of Celastraceae (spindle-tree family) subfamilies Hippocrateoideae and Salacioideae inferred from chloroplast and nuclear genes

dc.contributor.authorCoughenour, Jennifer Marie, author
dc.contributor.authorSimmons, Mark P., author
dc.contributor.authorLombardi, Julio A., author
dc.contributor.authorArcher, Robert H., author
dc.contributor.authorCappa, Jennifer J., author
dc.date.accessioned2007-01-03T05:45:38Z
dc.date.available2007-01-03T05:45:38Z
dc.date.issued2008
dc.description.abstractThe phylogeny of Celastraceae (the spindle-tree family) subfamilies Hippocrateoideae and Salacioideae, which include about 360 species of shrubs, trees, and vines in 25 genera, was inferred using plastid (matK, trnL-F) and nuclear (ITS and 26S rDNA) genes. Together, subfamilies Hippocrateoideae and Salacioideae contain all members of the former Hippocrateaceae, which are now recognized as a derived group within Celastraceae sensu stricto. Based on our results, Brassiantha, a monotypic genus endemic to New Guinea, is more closely related to the clade of Dicarpellum (New Caledonia) and Hypsophila (Queensland, Australia) than it is to the former Hippocrateaceae, in contrast to previous studies. This well supported resolution indicates that having a nectary disk positioned outside the stamens has been convergently derived in these two separate lineages. The clade of Kokoona and Lophopetalum was resolved as sister to the clade of Hippocrateoideae, Sarawakodendron, and Salacioideae. This resolution of Kokoona and Lophopetalum supports previous assertions that they are a "transitional link" between Celastraceae sensu stricto and the former Hippocrateaceae. Sarawakodendron, a monotypic genus endemic to Borneo, was resolved as sister to the clade of Salacioideae, which supports earlier assertions that Sarawakodendron is "transitional" between Kokoona, Lophopetalum, and Salacioideae. Based on our inferred phylogeny, arils as mucilaginous pulp are derived within Salacioideae and winged arils may be primitive within the former Hippocrateaceae as a whole. Finally, the former Hippocrateaceae had an Old World, rather than a New World, origin.
dc.description.awardCollege Honors.
dc.format.mediumStudent works
dc.format.mediumposters
dc.identifier.urihttp://hdl.handle.net/10217/1669
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2008 Projects
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectSalacioideae
dc.subjectHippocrateoideae
dc.subjectCelastreae
dc.subjectCelastraceae
dc.titlePhylogeny of Celastraceae (spindle-tree family) subfamilies Hippocrateoideae and Salacioideae inferred from chloroplast and nuclear genes
dc.typeStillImage
dc.typeText
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineBiology
thesis.degree.disciplineNatural Sciences

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