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dc.contributor.advisorPires, J. Chriseng
dc.contributor.authorEdger, Patrick P.eng
dc.contributor.otherUniversity of Missouri-Columbia. Graduate School. Theses and Dissertations. Dissertations. 2012 Dissertationseng
dc.date.issued2011eng
dc.date.submitted2012 Summereng
dc.descriptionTitle from PDF of title page (University of Missouri--Columbia, viewed on July 31, 2013).eng
dc.descriptionThe entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.eng
dc.descriptionDissertation advisor: J. Chris Pireseng
dc.descriptionIncludes bibliographical references.eng
dc.descriptionVita.eng
dc.descriptionPh. D. University of Missouri-Columbia 2012.eng
dc.description"July 2012"eng
dc.description.abstract[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Ancient whole genome duplications (WGDs), which multiply copies of the entire genome within an organism, are ubiquitous throughout the evolutionary history of higher eukaryotic lineages. These events have been hypothesized to be the basis for major evolutionary transitions, including having provided the "building blocks" for the origin of novel traits and an important driver for the largest species radiations across plants, fungi, protozoa, and animals. Repeated rounds of WGDs, or polyploid events, have been best documented among the flowering plants, and tend to be phylogenetically localized near the origin of speciose clades. However, the exact mechanisms that promote speciation in plants and retain duplicate pathways (i.e. "building blocks") following whole genome duplications for millions of years have been poorly understood. We utilized a phylogenomic framework, which was constructed utilizing a novel next-generation sequencing approach to localize and date two ancient WGDs shared by the model plant Arabidopsis thaliana and investigate the impact these events have had on both the origin of novel traits and diversification rates.eng
dc.description.bibrefIncludes bibliographical references.eng
dc.format.extentvii, 81 pageseng
dc.identifier.oclc872569307eng
dc.identifier.urihttps://hdl.handle.net/10355/36765
dc.identifier.urihttps://doi.org/10.32469/10355/36765eng
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartofcommunityUniversity of Missouri--Columbia. Graduate School. Theses and Dissertationseng
dc.rightsAccess is limited to the campus of the University of Missouri--Columbia.eng
dc.sourceSubmitted by University of Missouri--Columbia Graduate School.eng
dc.subjectwhole genome duplicationeng
dc.subjectevolutionary transitioneng
dc.subjectspecies radiationeng
dc.subjectphylogenomic frameworkeng
dc.titlePhylogenomics of ancient whole genome duplications in the Brassicaleseng
dc.typeThesiseng
thesis.degree.disciplineBiological sciences (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelDoctoraleng
thesis.degree.namePh. D.eng


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