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The interploidy hybridization barrier in Zea Mays L.
(University of Missouri--Columbia, 2006)
The failure of endosperm development due to interploidy crosses could be due to two reasons, neither of which has been studied on its own. 1) There is an imbalance of inherited imprinted loci in the endosperm (HAIG and ...
Characterization of pigment-protein complexes in the cyanobacterium Anacystis Nidulans R2
(University of Missouri--Columbia, 1987)
Intrinsic membrane proteins associated with photosynthetic electron transfer have highly-conserved analogs in both cyanobacteria and chloroplasts. However, the protein complexes required for light-harvesting are quite ...
Development of an amenable system for site-specific addition to a maize chromosome
(University of Missouri--Columbia, 2019)
Currently, transgenic maize is produced by random integration of a transgenes into the plant. This works for single genes, but not as well for multiple traits. Identifying plants that contain several transgenes becomes a ...
The effects of axotomy on the biophysical properties of reticulospinal neurons in larval lamprey
(University of Missouri--Columbia, 2006)
Following severe spinal cord injury (SCI), in adult higher vertebrates there is little or no axonal regeneration, and animals remain paralyzed below the lesion. In contrast, lower vertebrates such as the lamprey, following ...
The ecological roles of amphibians and subsidies in ponds
(University of Missouri--Columbia, 2018)
in isolation, and what happens in and around them influences their food webs and connections to nearby terrestrial ecosystems. Habitat alterations near ponds have strong potential to reduce animal diversity. In freshwater systems, loss of sensitive species...
Amphibian metamorphosis and juvenile terrestrial performance following chronic cadmium exposure in the aquatic environment
(University of Missouri--Columbia, 2005)
as the focal contaminant because it bioaccumulates, is highly toxic, and occurs in polluted water bodies around the world. Effects of larval exposure to Cd on amphibian metamorphosis and juvenile performance were tested using the southern leopard frog (Rana...
Characterizing a model of early human placenta
(University of Missouri--Columbia, 2020)
In the few weeks following fertilization of a human ovum, there is little known about the events of early human development. What we do know we've learned from a few collections of fixed sections of implantation sites ...
Assessing the effects of anticoagulant rodenticides on non-target fish species
(University of Missouri--Columbia, 2018)
event was reported on Ni'ihau and a dead whale calf also was found around the same time. Analysis of the affected fish were done and found no rodenticide in tissues. Despite these results, concerns of AR exposure to non-target species such as fish were...
Establishing a foundation for large DNA transfer to artificial minichromosomes and B insert platforms in maize
(University of Missouri--Columbia, 2019)
In plants, conventional genetic engineering methods limit the number of available traits that could potentially improve the quality of agriculture. Agrobacterium-mediated transformation and biolistic bombardment are tools ...
Quantitative biological studies at cellular and sub-cellular level
(University of Missouri--Columbia, 2007)
We developed a translational magnetic tweezers for quantitative measurements at cellular and sub-cellular level. In the cellular studies, multiple membrane tethers were extracted simultaneously under constant force transduced ...
The effects of metal contamination on larval white sturgeon in the upper Columbia River
(University of Missouri--Columbia, 2018)
Sturgeon populations are imperiled worldwide. Declines are attributed to many factors including habitat degradation and alteration, overexploitation, and contamination. In North America, white sturgeon (Acipenser transmontanus) ...
Ecological genomics of divergence, admixture, and fitness in the smallmouth bass (Micropterus dolomieu)
(University of Missouri--Columbia, 2021)
The Smallmouth Bass (Micropterus dolomieu) is one of the most highly targeted sport fishes in the world. Anglers vie for the opportunity to catch Smallmouth Bass recreationally and competitively, spending billions of dollars ...
Identification, characterization and use of novel thermogenetic tools in drosophilia melanogaster
(University of Missouri--Columbia, 2019)
Extrinsic control of neural activity is necessary to decipher the neural mechanisms underlying behavior. Molecular tools that employ light (optogenetics) or temperature (thermogenetics) are primarily used for extrinsic ...
Uncovering the genetic architecture and metabolic basis of amino acid composition in maize kernels using multi-omics integration
(University of Missouri--Columbia, 2020)
is one of the major staple crops used for food, feed, and fuel. A mature maize kernel contains small embryo (10% of the volume) and a large endosperm (~90% of its volume). In terms of composition, majority of the kernel proportion contains around 90...
Centromere function and evolution in maize (Zea mays)
(University of Missouri--Columbia, 2006)
A dispensable supernumerary chromosome present in maize, the B chromosome, was the focus of many centromere studies. First, I examine the variation in copy number of centromeric elements and other repeats among different ...
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 ...
Plasticity of neurons in mouse major pelvic ganglia in response to loos of physiological input in cases of nerve injury and spinal cord injury
(University of Missouri--Columbia, 2018)
Autonomic dysfunctions present significant effects on day to day functions of spinal cord-injured patients. Most people with spinal cord injury (SCI) reported a desire to recover autonomic functions such as bladder and ...
Characterizing territoriality and the mechanisms that mediate it in female Anolis gundlachi lizards
(University of Missouri--Columbia, 2019)
Territoriality is a suite of behaviors through which animals secure access to particular areas or resources. It is prevalent across animal groups and has the potential to exert substantial influence on fitness by mediating ...
Intervertebral discs : metabolic responses to load, injury, and pro-inflammatory stimulation
(University of Missouri--Columbia, 2020)
Introduction: Intervertebral disc (IVD) degeneration is a significant cause of back pain and disability. Factors such as trauma and magnitude and frequency of loading are associated with IVD degeneration. However, the ...
Chromatin-level regulation of the maize purple plant1 gene
(University of Missouri--Columbia, 2008)
In eukaryotes, gene expression is controlled at the chromatin level by mechanisms that are not yet well understood. This study addressed some of the unanswered questions about chromatin-level gene regulation. In maize, the ...