Index Catalog // ScholarsArchive@OSU

Unearthing the Cretaceous Diversification of Cornales

Creator:: Atkinson, Brian A.
Abstract:: The order Cornales (dogwoods) is the earliest diverging lineage within the most diverse group of flowering plants, the asterids (>80,000 species). Although molecular phylogenetics have significantly improved our understanding of cornalean systematics, early phylogenetic relationships remain uncertain due to an initial rapid radiation. The fossil record of Cornales is extensive...
Resource Type:: Dissertation

Genotyping and Admixture Mapping of North American Fragaria chiloensis Populations

Creator:: Devin, Jennifer N.
Abstract:: Assembly and genotyping of polyploid genomes poses many problems due to the complex nature of polyploid data, including the inability to determine allelic dosage and mixed inheritance patterns. This study was the first application of POLiMAPS genotyping on whole genome sequences without using cross information. In this study, whole genome...
Resource Type:: Honors College Thesis

Sequencing the Mitochondrial Genome of the Common Milkweed: Asclepias syriaca

Creator:: Edwards, Christopher A.
Abstract:: Few plant mitochondrial genomes have been published to date because of their structural complexity and difficulties in their physical isolation. Plant mitochondrial genomes are known to have a high level of heteroplasmy and can exist as several different circular or linear strands. Sequencing additional mitochondrial genomes will help to understand...
Resource Type:: Honors College Thesis

Molecular systematic studies in the genus Ribes (Grossulariaceae)

Creator:: Messinger, Wes
Abstract:: Infrageneric classification in Ribes has previously relied on a few, often conflicting, morphological markers, such as spines, glands, and inflorescence morphology. Suggestions that hybridization drives the evolution of the genus have not been tested using phylogenetic methods. To assess the validity of infrageneric classifications and the importance of hybridization to...
Resource Type:: Masters Thesis

Molecular phylogenetic analyses of Riccia and Marchantiales

Creator:: Wheeler, John A. (John Allen)
Resource Type:: Dissertation

Fescue taxonomy in the Pacific coast states

Creator:: Wilson, Barbara L.
Abstract:: Accurate taxonomy is essential to preservation and management of native grasses. Four problems in fescue taxonomy were investigated: the identity of the native fescue that dominates western Oregon and Washington prairies, the relationship of native Festuca roemeri to closely related grasses, the status of F. howellii and F. washingtonica, and...
Resource Type:: Dissertation

The biogeography of Plantago ovata Forssk. (Plantaginaceae)

Creator:: Meyers, Stephen C.
Abstract:: Plantago ovata Forssk. (Plantaginaceae) is a winter annual species which, in North America, inhabits desert and Mediterranean habitats of the southwest United States, northwest Mexico and the Channel Islands of California and Mexico. In the eastern hemisphere P. ovata inhabits desert regions ranging from the Canary Islands, across northern Africa...
Resource Type:: Masters Thesis

Evolutionary relationships and an investigation of sympatric speciation within Limnanthaceae

Creator:: Meyers, Stephen C.
Abstract:: Limnanthes floccosa ssp. floccosa and L. floccosa ssp. grandiflora are two of five subspecies of Limnanthes floccosa endemic to vernal pools in southern Oregon and northern California. Three seasons of monitoring natural populations have quantified that L. floccosa ssp. grandiflora is always found growing sympatrically with L. floccosa ssp. floccosa...
Resource Type:: Dissertation

Conservation genetics of Kincaid's lupine : a threatened plant of western Oregon and southwest Washington grasslands

Creator:: Severns, Paul M.
Abstract:: Kincaid's lupine (Lupinus oreganus Heller) is a federally listed threatened species native to remnant grassland of western Oregon and southwestern Washington, and is the primary larval host plant of a once thought extinct butterfly, Plebejus icarioides fenderi Macy. Past studies concerning Kincaid's lupine reproduction suggested that populations may suffer reductions...
Resource Type:: Dissertation

Chloroplast DNA phylogeny of hard pines (subgenus Pinus) : inference from site mutations and multiple small (1-10 Kb) inversions

Creator:: Krupkin, Alexander Bennett
Abstract:: Plastid DNA restriction site and rearrangement mutations were used to study phylogenetic relationships among hard pines (subgenus Pinus). Total genomic DNA was cut with 19 restriction enzymes, blotted, and then probed mostly with 80% of the Douglas-Fir (Pseudotsuga menziesii) chioroplast genome (cpDNA) {initial study, using only 6bp recognition enzymes}; or,...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Unearthing the Cretaceous Diversification of Cornales

Genotyping and Admixture Mapping of North American Fragaria chiloensis Populations

Sequencing the Mitochondrial Genome of the Common Milkweed: Asclepias syriaca

Molecular systematic studies in the genus Ribes (Grossulariaceae)

Molecular phylogenetic analyses of Riccia and Marchantiales

Fescue taxonomy in the Pacific coast states

The biogeography of Plantago ovata Forssk. (Plantaginaceae)

Evolutionary relationships and an investigation of sympatric speciation within Limnanthaceae

Conservation genetics of Kincaid's lupine : a threatened plant of western Oregon and southwest Washington grasslands

Chloroplast DNA phylogeny of hard pines (subgenus Pinus) : inference from site mutations and multiple small (1-10 Kb) inversions

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