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Full-Text Articles in Life Sciences
Decoding The Cellular Zipcode: Functional Analysis Of Transit Peptide Motifs And Mechanistic Implications In Plastid Targeting And Import, Kristen N. Holbrook
Decoding The Cellular Zipcode: Functional Analysis Of Transit Peptide Motifs And Mechanistic Implications In Plastid Targeting And Import, Kristen N. Holbrook
Doctoral Dissertations
Eukaryotic organisms are defined by their compartmentalization and various organelles. The membranes that define these organelles require complex nanomachines (known as translocons) to selectively mediate the import of proteins from the cytosol where they are synthesized into the organelle. The plastid, (specifically the chloroplast) which is characteristic of plant cells, possibly represents the most complex system of protein sorting, requiring many different translocons located in the three membranes found in this organelle. Despite having a small genome, the vast majority of plastid-localized proteins are nuclear-encoded and must be post-translationally imported from the cytosol. These proteins are encoded as a larger …
Population Genetics And Genomics Within The Genus Pityopsis, Elizabeth Anne Hatmaker
Population Genetics And Genomics Within The Genus Pityopsis, Elizabeth Anne Hatmaker
Masters Theses
Pityopsis (Asteraceae) includes seven species; one species, P. ruthii, is federally endangered. The genus exhibits a range of ploidy levels, widespread hybridization among species with overlapping ranges, and interesting adaptive traits such as fire-stimulated flowering. However, taxonomy of Pityopsis has remained unresolved. Resolving interspecific relationships can lead to a deeper understanding of the inheritance and hybridization patterns, as well as the evolution of adaptable traits. Our first objective was to examine population structure and gene flow within Pityopsis ruthii. Polymorphic microsatellite markers (7 chloroplast and 12 nuclear) were developed and used to examine genetic diversity of 814 P. …