EVOLUTIONARY TRANSITIONS BETWEEN STATES OF STRUCTURAL AND DEVELOPMENTAL CHARACTERS AMONG THE ALGAL CHAROPHYTA (VIRIDIPLANTAE)

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dc.contributor.advisorDelwiche, Charles Fen_US
dc.contributor.authorLewandowski, Jeffrey Daviden_US
dc.contributor.departmentCell Biology & Molecular Geneticsen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2005-02-02T06:53:11Z
dc.date.available2005-02-02T06:53:11Z
dc.date.issued2004-12-10en_US
dc.description.abstractThe Charophyta comprise green plant representatives ranging from familiar complex-bodied land plants to subtle and simple forms of green algae, presumably the closest phylogenetic relatives of land plants. This biological lineage provides a unique opportunity to investigate evolutionary transition series that likely facilitated once-aquatic green plants to colonize and diversify in terrestrial environments. A literature review summarizes fundamental structural and developmental transitions observed among the major lineages of algal Charophyta. A phylogenetic framework independent of morphological and ontological data is necessary for testing hypotheses about the evolution of structure and development. Thus, to further elucidate the branching order of the algal Charophyta, new DNA sequence data are used to test conflicting hypotheses regarding the phylogenetic placement of several enigmatic taxa, including the algal charophyte genera <i>Mesostigma</i>, <i>Chlorokybus</i>, <i>Coleochaete</i>, and <i>Chaetosphaeridium</i>. Additionally, technical notes on developing RNA methods for use in studying algal Charophyta are included.en_US
dc.format.extent1598266 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/2144
dc.language.isoen_US
dc.subject.pqcontrolledBiology, Botanyen_US
dc.subject.pqcontrolledBiology, Cellen_US
dc.subject.pqcontrolledBiology, Molecularen_US
dc.subject.pquncontrolledcharophyteen_US
dc.subject.pquncontrolledgreen algaeen_US
dc.subject.pquncontrolledland plantsen_US
dc.subject.pquncontrolledevolutionen_US
dc.subject.pquncontrolleddevelopmenten_US
dc.subject.pquncontrolledphylogeneticsen_US
dc.titleEVOLUTIONARY TRANSITIONS BETWEEN STATES OF STRUCTURAL AND DEVELOPMENTAL CHARACTERS AMONG THE ALGAL CHAROPHYTA (VIRIDIPLANTAE)en_US
dc.typeThesisen_US

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