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Meiotic silencing by unpaired DNA : elucidation of a new gene silencing pathway
(University of Missouri--Columbia, 2011)
Meiotic silencing by unpaired DNA is an RNAi-mediated pathway that functions to silence unpaired genes during the sexual phase of Neurospora crassa. The presence of a gene insertion or deletion causes an unpairing event ...
Building better wetlands for amphibians : investigating the roles of engineered wetland features and mosquitofish (Gambusia affinis) on amphibian abundance and reproductive success
(University of Missouri--Columbia, 2011)
Compensatory wetland mitigation efforts have been broadly criticized for failing to replace lost ecological functions, even with net gains in wetland area. Of particular concern is the suitability of constructed wetlands ...
The eco-physiology of PHOT1/phot1[delta]PKD, insights into a phototropically enhanced mutant.
(University of Missouri--Columbia, 2011)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The phototropin class of blue light photoreceptors in Arabidopsis is critical to how plants response to light cues. Here, I study how the photo-perception ...
Coordinated communication: an analysis of signal and preference phenotypes in the genus Hyla
(University of Missouri--Columbia, 2014)
Eph/Ephrin signalling in skeletal muscle development and regeneration
(University of Missouri--Columbia, 2014)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Skeletal muscle can be isolated into 642 individual muscles and makes up to one third to one half of the mass of the human body. Each of these muscles ...
Occurrence and implicatons of biological network evolution following polyploidy
(University of Missouri--Columbia, 2014)
The mapping and comparison of biological networks allows for analysis to understand forces of evolution. Here, we synthesize information about polyploidy, or whole genome duplication, and its effects on network rewiring. ...
The role of RNAi genes in Neurospora crassa post-transcriptional gene silencing
(University of Missouri--Columbia, 2014)
Meiotic silencing was first identified in the bread mold Neurospora crassa (by our group and others) and has since been discovered in worms, mice, and humans. Neurospora is an excellent model organism in that it is ...
Effects of prescribed fire and timber harvest on terrestrial salamander abundance, behavior, and microhabitat use
(University of Missouri--Columbia, 2014)
The goal of my dissertation was to assess how terrestrial salamanders respond to two common forest management practices -- prescribed fire and timber harvest. Previous studies have reported that timber harvest adversely ...
Intrinsic, extrinsic and environmental regulation of muscle satellite cell motility
(University of Missouri--Columbia, 2011)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Skeletal muscle repair and regeneration requires the activity of satellite cells, a population of myogenic stem cells. Previously, little data existed ...
Genetic and neuronal systems that are critical for high temperature avoidance in reflexive and learned behaviors
(University of Missouri--Columbia, 2014)
Effects of spatial subsidies and canopy cover on pond communities and multiple life stages in amphibians
(University of Missouri--Columbia, 2012)
Spatial subsidies are resources that move from one ecosystem to another. In aquatic systems, canopy cover determines both light availability and subsidy input in the form of senescing leaves. This phenomenon has been well ...
Hellbender (Cryptobranchus alleganiensis) gene flow within rivers of the Missouri Ozark highlands
(University of Missouri--Columbia, 2013)
For species of conservation concern, effective management includes maintaining robust population sizes while monitoring and promoting genetic variability. For hellbenders (Cryptobranchus alleganiensis), an aquatic salamander ...
Investigating an adaptive radiation in temperate Neoconocephalus
(University of Missouri--Columbia, 2013)
Evolution of communication system is seemingly complex requiring coevolution between sender and receiver mechanisms. Studying acoustic communication in the katydid genus Neoconocephalus (coneheaded katydids), I compare ...
Grazing lawns across Africa : a case study comparison between Kruger National Park and Serengati [sic] National Park
(University of Missouri--Columbia, 2012)
Grazing lawns are highly-utilized grassland patches that represent key resource areas for large herbivores in savanna ecosystems. Two parallel studies were conducted in Kruger National Park (KNP), South Africa and Serengeti ...
Complex life-histories and biogeochemical cycles : interactions between amphibian life-history strategies and elemental cycling
(University of Missouri--Columbia, 2013)
All life must balance two key currencies: energy and matter. My dissertation focuses on the struggle that animals face in balancing various permutations of the latter currency: elements. The availability of essential ...
Determining the mechanism of NF C-terminal mediated radial growth of myelinated axons
(University of Missouri--Columbia, 2014)
Topological organization of the trigeminal system in the lamprey and restoration following axonal regeneration
(University of Missouri--Columbia, 2012)
The nervous systems of lower vertebrates, such as the lamprey, share many of the basic features of the brain and spinal cord of higher vertebrates. However, unlike humans and other higher vertebrates, the lamprey displays ...
A study of reproductive toxicology
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Di(2-ethylhexyl) phthalate (DEHP) is a ubiquitous environmental contaminant. Epidemiological studies suggest that DEHP decreases masculinization of ...
Genome-wide exploration of direct GBX2 target genes and their contributions to mouse development
(University of Missouri--Columbia, 2013)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] The cells that comprise the vertebrate nervous system require molecular cues to determine their cellular position, identity and their ability to make ...
Mature forest-breeding bird use of early-successional habitat
(University of Missouri--Columbia, 2013)
Some late-successional birds shift habitat-use from mature forestbreeding habitat to early-successional habitat. Management efforts have primarily focused on breeding habitat for migratory songbirds, but the post-breeding ...