Inoculations of white fir, Shasta red fir, Douglas fir and
ponderosa pine with Pisolithus tinctorius spores when outplanted
failed to produce P. tinctorius mycorrhizae at the end of the first
growing season. In the third year a few P. tinctorius mycorrhizae
were formed on white fir. Inoculations reduced seedling survival...
A systematic study of highly branched isoprenoids (HBI) was carried out in
suspended particulate material (SPM) and Washington coastal sediments to determine
their origin and fate. SPM collected at 10 m depth was filtered through Nitex
membranes. C₂₅ HBI were found only in the 1.2-40 μm range over the shelf....
At a time when the biodiversity on Earth is being rapidly lost, new technologies and methods in genomic analysis are fortunately allowing scientists to catalog and explore the diversity that remains more efficiently and precisely. The studies in this dissertation investigate genomic diversity within the milkweed genus, Asclepias, at multiple...
This qualitative study examines how FIESTAS (Family Involved in Education, Sociocultural Teaching and STEM) partners (comprised of out-of-school time (OST) educators, university student STEM instructors, and local business representatives) came together to facilitate a local STEM Club located in two dual-immersion elementary schools in the Pacific Northwest. The study addresses...
Change initiatives have a 70 percent failure rate, but effective change is necessary if a company is to remain competitive. Current organizational change research around lean process improvement links unsatisfactory implementation results to organizational behaviors, but does not assess how individual cognitive characteristics affect successful lean implementation. Although a range...
Data from nuclear ribosomal internal transcribed spacer regions (nrITS) and chloroplast DNA (cpDNA) have failed to resolve phylogenetic relationships in Pinus. To provide greater interspecific resolution, five low-copy nuclear genes were developed from mapped conifer anchor loci. Four genes were sequenced from species representing all Pinus subsections. Individual loci do...
This thesis summarizes work completed over the previous four years primarily focusing on chloroplast phylogenomic inquiry into the genus Pinus and related Pinaceae outgroups using next-generation sequencing on Illumina platforms. During the time of our work, Illumina sequence read lengths have essentially been limited to 25 to 100 base pairs,...
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Aaron I. Liston Richard C. Cronn
This thesis summarizes work completed over the
A fossil-calibrated phylogenetic framework based on exemplars from each of the four taxonomic sections within Pinus was created using multiple nuclear and chloroplast loci. Calibration at the well-defined subgeneric split within Pinus with either fossil leaves and cones (ca. 45 million years ago) or fossil wood (ca. 85 million years...