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Full-Text Articles in Life Sciences
Phylogeny And Morphology Of Seed Coat And Fibrillar Mucilage Of Polemoniaceae, Katherine Holt, Dr. Leigh Johnson
Phylogeny And Morphology Of Seed Coat And Fibrillar Mucilage Of Polemoniaceae, Katherine Holt, Dr. Leigh Johnson
Journal of Undergraduate Research
The Phlox family (Polemoniaceae) has been the focus of many studies regarding plant speciation and diversification. Comprising just 379 species in 26 genera, considerable interest exists in understanding the phylogenetic relationships in the Phlox family to further increase its value as a model system for exploring diversification patterns (Johnson, 1996; Porter, 1996; Grant, 1998; Porter and Johnson, 2000; Prather, 2000). Although DNA-based phylogenetic hypotheses have been proposed, few morphological features have been described in sufficient detail to allow them to be incorporated into explicit phylogenetic analyses. Although a large number of character surveys in this family have been published, thorough …
A Phylogenetic Study Of The Suffrutescent Shrubs In The Genus Atriplex, C. Lorenzo Pope
A Phylogenetic Study Of The Suffrutescent Shrubs In The Genus Atriplex, C. Lorenzo Pope
Theses and Dissertations
Growing on dry saline soils throughout the Intermountain Region of the United States is a group of herbaceous, perennial species of Atriplex, including A. corrugata, A. cuneata, A. cuneata ssp. Introgressa, A. falcata, A. gardneri, A. tridentata, and A. welshii, designated as the Atriplex gardneri complex. Highly adaptive and competitive in the arid salt deserts, these species are valuable as forage for livestock and wildlife. Because of extensive variation present within this complex, considerable taxonomic confusion has resulted. To clarify taxonomic and phylogenetic relationships, selected populations and plants were analyzed morphologically, cytologically, ecologically, phenologically, and genetically. Polyploidy is common within …