Molecular phylogeny of the goldenasters, subtribe Chrysopsidinae (Asteraceae: Astereae), based on nuclear ribosomal and chloroplast sequence data

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dc.contributor.advisorRoberts, Roland P.
dc.contributor.authorCosta, Clayton M.
dc.contributor.departmentTowson University. Department of Biological Sciences
dc.date.accessioned2015-12-17T19:35:52Z
dc.date.available2015-12-17T19:35:52Z
dc.date.issued2014-09-12
dc.date.submitted2014-05
dc.description(M.S.) -- Towson University, 2014.
dc.description.abstractIn this study, phylogenies were estimated based on molecular data from ETS and ITS, nuclear ribosomal DNA, and ycf1 and psbA-trnH, chloroplast DNA for all known genera of the Chrysopsidinae. The resulting phylogenies were used as the basis for addressing questions related to subtribal and generic monophyly, the relationship of the Central and South American genera Osbertia, Tomentaurum, and Noticastrum to North American genera, biogeography, morphological trait evolution and convergence among morphological features commonly used to delimit generic and species boundaries. Additionally, modifications to commonly used DNA extraction techniques allowed us to access DNA from relatively old herbarium specimens. Results from analyses of individual and combined datasets support the monophyly of the Chrysopsidinae and allowed some resolution of both the relationships among the genera of the Chrysopsidinae and the relationships among sections of the genus Heterotheca.
dc.description.tableofcontentsMolecular phylogeny of the goldenasters, subtribe Chrysopsidinae (Asteraceae: Astereae), based on nuclear ribosomal and chloroplast sequence data -- Techniques for improving the quality and quantity of DNA extracted from herbarium specimens
dc.formatapplication/pdf
dc.format.extentxii, 86 pages
dc.genretheses
dc.identifierdoi:10.13016/M2242D
dc.identifier.otherTSU2014Costa
dc.identifier.urihttp://hdl.handle.net/11603/2063
dc.language.isoeng
dc.relation.ispartofTowson University Archives
dc.relation.ispartofTowson University Electronic Theses and Dissertations
dc.relation.ispartofTowson University Institutional Repository
dc.rightsCopyright protected, all rights reserved.
dc.titleMolecular phylogeny of the goldenasters, subtribe Chrysopsidinae (Asteraceae: Astereae), based on nuclear ribosomal and chloroplast sequence data
dc.typeText
dcterms.accessRightsThere are no restrictions on access to this document. An internet release form signed by the author to display this document online is on file with Towson University Special Collections and Archives.

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