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2013

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Net Productivity On Artificial Reefs In The Mississippi Sound Estimated From Settlement Plate Measurements, Viviana Mazzei Aug 2013

Net Productivity On Artificial Reefs In The Mississippi Sound Estimated From Settlement Plate Measurements, Viviana Mazzei

Master's Theses

The use of artificial reefs as a coastal management tool has become increasingly popular worldwide. The Mississippi Sound has 67 inshore artificial reefs sites, the main goal of which is to increase the production of economically and recreationally important fish, such as speckled trout, white trout, redfish, and black drum. The success of artificial reefs in meeting this goal depends in part on the quantity of primary and secondary production available on or near the reefs to support a reef-based food web. The objective of this study was to estimate phycoperiphyton net primary production and chlorophyll concentration on four artificial …

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Molecular Detection Of Tick-Borne Pathogens Associated With Ixodid Tick Species Infesting Migratory Songbirds And Ruminants, Nabanita Mukherjee Aug 2013

Molecular Detection Of Tick-Borne Pathogens Associated With Ixodid Tick Species Infesting Migratory Songbirds And Ruminants, Nabanita Mukherjee

Master's Theses

Ticks are hematophagous arthropods and capable of inoculating various infectious agents to their vertebrate hosts. Ticks attached to birds and ruminants are capable of carrying tick-transmitted microorganisms. In our study, the prevalence of tick-borne pathogens was examined in ticks infesting migratory songbirds and Pakistani ruminants. During spring migration seasons, ticks were removed from northward-migrating songbirds in Louisiana and identified as Amblyomma Jongirostre, Amblyomma nodosum, Amb/yomma ca/caratum, Amblyomma maculatum, and Haemaphysalis species, all are considered as Neotropical ticks. Ticks removed from ruminants were identified as Hya/omma anatolicum, Hyalomma dromedarii, Rhipicephalus microplus, and Rhipicephalus sanguineus. A total of 112 and 72 bacterial …

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Spring Landbird Migration Along The Northern Coast Of The Gulf Of Mexico: Multi-Scaled Investigation Of Stopover Ecology Within An Urbanized Landscape, Jill Marie Gautreaux Aug 2013

Spring Landbird Migration Along The Northern Coast Of The Gulf Of Mexico: Multi-Scaled Investigation Of Stopover Ecology Within An Urbanized Landscape, Jill Marie Gautreaux

Master's Theses

Two-thirds of bird species breeding in eastern N. America annually migrate from temperate breeding grounds to tropical wintering locations, engaging in non-stop movement directly across the Gulf of Mexico (GOM). Thus, millions of migrants concentrate in woodlands along the northern Gulf coast during spring and fall passage. These coastal landscapes are some of the most rapidly developing areas in the U.S. with population growth rates five times higher than that of inland areas. Anthropogenic pressures, along with human-created (e.g., oil spills) and natural disturbances (e.g., hurricanes), result in rapid degradation of sensitive coastal ecosystems, creating tension between importance of coastal …

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Lincoln: Reformer Or Revolutionary? An Analysis Of Lincoln's Legacy As Compared To The Political Ideals Of The Amerian Revolution, Hayley Elizabeth Patterson Aug 2013

Lincoln: Reformer Or Revolutionary? An Analysis Of Lincoln's Legacy As Compared To The Political Ideals Of The Amerian Revolution, Hayley Elizabeth Patterson

Master's Theses

Despite the fact that his greatest legacies departed from American traditions, Abraham Lincoln coveted the political ideals espoused by the Founding Fathers. As president, Lincoln inherited the unprecedented challenges that resulted from decades of politicians tabling the insoluble problem of slavery. He operated within the realms of constitutionally allocated authority to meet those challenges. Where the Constitution provided no direction, Lincoln developed solutions that more closely resembled the political philosophies of the American Revolution than any of his political opponents' alternative solutions. The unprecedented circumstances he faced not only enabled Lincoln to reconcile the right to freedom as described in …

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Development Of A Genetic Monitoring Program For Stock Enhancement Of Mississippi Spotted Seatrout (Cynoscion Nebulosus), Carly Renee Somerset Aug 2013

Development Of A Genetic Monitoring Program For Stock Enhancement Of Mississippi Spotted Seatrout (Cynoscion Nebulosus), Carly Renee Somerset

Master's Theses

The spotted seatrout is a coastal sciaenid fish that is intensively exploited in the northcentral Gulf of Mexico. A stock enhancement research program was initiated in 2004 to develop methods to culture juveniles and release them in natural habitats to increase recruitment in the fishery. The goal of this study was to initiate a genetic monitoring program for stock enhancement activities. Assays for 15 microsatellite loci were optimized. Simulations indicated that this panel of molecular markers was sufficient to identify recaptured hatchery fish with high confidence assuming genetic data on broodfish spawned to produce released fish were available. Stock structure …

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A Force Of Nature: Molecular Mechanisms Of Mechanoperception In Plants, Gabriele B. Monshausen, Elizabeth S. Haswell Aug 2013

A Force Of Nature: Molecular Mechanisms Of Mechanoperception In Plants, Gabriele B. Monshausen, Elizabeth S. Haswell

Biology Faculty Research

The ability to sense and respond to a wide variety of mechanical stimuli-gravity, touch, osmotic pressure, or the resistance of the cell wall-is a critical feature of every plant cell, whether or not it is specialized for mechanotransduction. Mechanoperceptive events are an essential part of plant life, required for normal growth and development at the cell, tissue, and whole-plant level and for the proper response to an array of biotic and abiotic stresses. One current challenge for plant mechanobiologists is to link these physiological responses to specific mechanoreceptors and signal transduction pathways. Here, we describe recent progress in the identification …

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Characterization Of Promoter Regions Of Parotid Gland Genes., Sara M. Perez 1987- Aug 2013

Characterization Of Promoter Regions Of Parotid Gland Genes., Sara M. Perez 1987-

Electronic Theses and Dissertations

BACKGROUND: Salivary secretion aids in digestion, host defense, and lubrication. Parotid salivary gland defects from Sjogren’s Syndrome affect more than one million Americans and cause dry mouth leading to oral disease. The Amylase 1 gene and the PSP gene are markers of parotid gland differentiation and indicate normal parotid gland function. Transcriptional activators of genes involved in parotid differentiation have not been characterized. HYPOTHESIS: Characterizing transcriptional activating sites in gene promoter regions will confirm upstream activating factors in bioinformatic network pathways. METHODS: Two promoter regions of mouse amylase 1 were identified using the ECR Browser, PCR amplified and ligated into …

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Sustainability And Collegiate Recreational Sports Facilities., Thomas Bradley Stinnett Aug 2013

Sustainability And Collegiate Recreational Sports Facilities., Thomas Bradley Stinnett

Electronic Theses and Dissertations

Sustainability is a hot topic in higher education. Buzz words such as green and renewable have helped brand modern environmentalism. A greater emphasis on facility planning, development, and management is contributing to sustainability efforts. Collegiate recreational sports programs often include facilities that pose a challenge to the green movement, due to their size and operational requirements. To identify efforts within the collegiate recreational sports industry, this dissertation focuses on assessing the state of facility sustainability. The purpose of this study was to assess levels of personnel familiarity and institutional level of adoption related to sustainable initiatives at collegiate recreational sports …

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The Effects Of Socioeconomic, Built Environment, And Food Environment Factors On Childhood Obesity In Montclair, California, Krystal Redman Aug 2013

The Effects Of Socioeconomic, Built Environment, And Food Environment Factors On Childhood Obesity In Montclair, California, Krystal Redman

Loma Linda University Electronic Theses, Dissertations & Projects

This observational study examines the relationship between socioeconomic status (SES), built environment, and food environment factors and childhood obesity. In this study, the participants were selected from three elementary schools located in the innercity of Montclair, California. Information about each student’s health and family income and was gathered. In addition, the number of parks, fast food restaurants, and grocery stores within the school district border lines were tallied. I also observed the quality of the parks and food sold in the markets, built environment I hypothesized that childhood obesity is associated with SES (i.e., income level and education level), the …

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Development Of Hif-1Α/Hif-1Β Heterodimerization Inhibitors Using A Novel Bioluminescence Reporter Assay System For In Vitro High Throughput Screening And In Vivo Imaging, Yun-Chen Chiang Aug 2013

Development Of Hif-1Α/Hif-1Β Heterodimerization Inhibitors Using A Novel Bioluminescence Reporter Assay System For In Vitro High Throughput Screening And In Vivo Imaging, Yun-Chen Chiang

Dissertations and Theses (Open Access)

Tumor growth often outpaces its vascularization, leading to development of a hypoxic tumor microenvironment. In response, an intracellular hypoxia survival pathway is initiated by heterodimerization of hypoxia-inducible factor (HIF)-1α and HIF-1β, which subsequently upregulates the expression of several hypoxia-inducible genes, promotes cell survival and stimulates angiogenesis in the oxygen-deprived environment. Hypoxic tumor regions are often associated with resistance to various classes of radio- or chemotherapeutic agents. Therefore, development of HIF-1α/β heterodimerization inhibitors may provide a novel approach to anti-cancer therapy. To this end, a novel approach for imaging HIF-1α/β heterodimerization in vitro and in vivo was developed in this study …

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Network Dynamics Of Visual Naming, Christopher R. Conner Aug 2013

Network Dynamics Of Visual Naming, Christopher R. Conner

Dissertations and Theses (Open Access)

Recognition and naming of objects and actions are fundamental components of language. They involve several different systems working in coordination to accomplish a complex behavior. During visual naming, sensory and semantic processing are carried out by dedicated cortical substrates in the temporal and occipital lobes, while response selection and articulatory planning are handled by prefrontal cortex. Despite decades of research using lesion analysis, functional MRI and electro-encephalography, the precise dynamics involved remain unknown due to the inadequate spatio-temporal resolution of these methodologies. Of particular interest is the organization of semantic knowledge and the degree of serial and parallel organization of …

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Targeted Deletion Of Functionally Validated Enhancers Defines Their Role In Mouse Limb Development, Mark J. Nolte Aug 2013

Targeted Deletion Of Functionally Validated Enhancers Defines Their Role In Mouse Limb Development, Mark J. Nolte

Dissertations and Theses (Open Access)

Transcriptional enhancers are genomic DNA sequences that contain clustered transcription factor (TF) binding sites. When combinations of TFs bind to enhancer sequences they act together with basal transcriptional machinery to regulate the timing, location and quantity of gene transcription. Elucidating the genetic mechanisms responsible for differential gene expression, including the role of enhancers, during embryological and postnatal development is essential to an understanding of evolutionary processes and disease etiology. Numerous methods are in use to identify and characterize enhancers. Several high-throughput methods generate large datasets of enhancer sequences with putative roles in embryonic development. However, few enhancers have been deleted …

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The Relationship Of Stress Levels To Wellness Practices Among U.S. Radiologic Technology Program Directors, Jesse D. Pennington Aug 2013

The Relationship Of Stress Levels To Wellness Practices Among U.S. Radiologic Technology Program Directors, Jesse D. Pennington

Electronic Theses and Dissertations

The purpose of this modified replication study is to examine the relationship between the stress levels and the wellness practices of U.S. radiologic technology program directors and to determine if correlations exist between wellness practices and stress levels of the group. Additionally, relaxation activities and the feelings, characteristics, and symptoms associated with stress were considered. The design of the study was ex post facto correlational. The population of the study was U.S. radiologic technology program directors working in JRCERT accredited programs. The electronic instrument was distributed to 635 program directors through e-mail, with 424 (66.7%) usable returns. Significant associations were …

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Dynamics And Control Of A Single-Line Maneuverable Kite, Christopher Donnelly Aug 2013

Dynamics And Control Of A Single-Line Maneuverable Kite, Christopher Donnelly

Theses

Through simulation, an automated control system for a single-line maneuverable kite is developed for application in kite wind energy production. The kite used in this study is a small, tension-controlled, single-line kite, commonly known as a fighter kite. These kites have a simple design, but flying them requires complex control of line tension and visual input. At low tether tension, the kite is unstable; spinning about the tether. Increasing tension in the tether causes the kite to deform and fly in the direction it was facing. Experienced fliers can produce intricate maneuvers and often participate in competitions with other fliers. …

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Self-Expansion And Breakups: Effects On Possessions, Caroline Sandrick Aug 2013

Self-Expansion And Breakups: Effects On Possessions, Caroline Sandrick

All-Inclusive List of Electronic Theses and Dissertations

The current study strives to understand the influence of breakups on the expanded self and its representation through possessions. The self-expansion theory (Aron & Aron, 1986) states that involving oneself in a romantic relationship alters one’s sense of self by taking on the partner’s characteristics and qualities and integrating them into the self. The study examined the reported self-expansion in the relationship and the couple representativeness of a possession to see if this affected the outcome of the possessions (kept vs. discarded). Participants were asked to report their three favorite possessions and five possessions they would keep (or kept) and …

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Summer Indiana Bat Ecology In The Southern Appalachians: An Investigation Of Thermoregulation Strategies And Landscape Scale Roost Selection, Kristina Hammond Aug 2013

Summer Indiana Bat Ecology In The Southern Appalachians: An Investigation Of Thermoregulation Strategies And Landscape Scale Roost Selection, Kristina Hammond

All-Inclusive List of Electronic Theses and Dissertations

In the southern Appalachians there are few data on the roost ecology of the federally endangered Indiana bat (Myotis sodalis). During 2008-2012, we investigated roosting ecology of the Indiana bat in ~280,000 ha in the Great Smoky Mountains National Park, Cherokee National Forest, and Nantahala National Forest in the southern Appalachians Mountains of Tennessee and North Carolina. We investigated 2 aspects of the Indiana bat’s roosting ecology: thermoregulation and the extrinsic factors that influence body temperature, and landscape-scale roost selection. To investigate thermoregulation of bats at roost, we used data gathered in 2012 from 6 female Indiana bats (5 adults …

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The Effects Of Mindfulness Meditation And Resonant Frequency Breath Training On Emotion Regulation And Physiological Responses, Timothy James Neary Aug 2013

The Effects Of Mindfulness Meditation And Resonant Frequency Breath Training On Emotion Regulation And Physiological Responses, Timothy James Neary

All-Inclusive List of Electronic Theses and Dissertations

Efficient, integrative methods to foster greater emotion regulation that are applicable to diverse populations are needed. Mindfulness meditation and resonant frequency breath training are independently positively correlated with changes in emotion regulation. The acquisition of effective emotion regulation strategies may be amplified by the interaction of mindfulness meditation practice and resonant frequency breath training. A sample of 82 undergraduate novice meditators were randomized in a four group design utilizing a control, mindfulness only, resonance only, and combined mindfulness and resonance breath training conditions delivered in a three-week intervention. Self-report measures assessed the use of emotion regulation strategies (ERQ), changes in …

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Running On Fumes The Destabilization Of The World’S Interconnected Systems As A Result Of Unsustainable Human Proliferation On A Finite Planet, Eduardo Fradin Aug 2013

Running On Fumes The Destabilization Of The World’S Interconnected Systems As A Result Of Unsustainable Human Proliferation On A Finite Planet, Eduardo Fradin

All-Inclusive List of Electronic Theses and Dissertations

This thesis examines the global interconnectivity of critical and complex societal systems. Today, if consumption patterns continue to rise to unsustainable levels in concert with a soaring global population, these social and technological systems may begin to buckle, which will threaten the advancement of modern human civilization in the 21st century and beyond. The first globally-stressed system that is addressed in this paper is the global economic system. The second system I discuss is the global energy system and how it directly impacts the global economy. The following chapter looks at unsustainable population growth, freshwater scarcity, and food stresses. In …

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“All Things Forget The Forest:” The Convergence Of The War And The Pastoral In Edward Thomas’S Body Of Work, Nicole Trobaugh Aug 2013

“All Things Forget The Forest:” The Convergence Of The War And The Pastoral In Edward Thomas’S Body Of Work, Nicole Trobaugh

All-Inclusive List of Electronic Theses and Dissertations

Edward Thomas, often identified as a war poet, eludes definitive characterization despite the fact that his poems are often anthologized as war poems. However, unlike other widely-known war poets, such as Siegfried Sassoon and Wilfred Owen, the imagery present in Thomas’s poetry contains much subtlety and features dominant usage of nature themes. This project attempts to navigate the multi-faceted world of Edward Thomas through consideration of his love for nature, his melancholic predispositions, and his preoccupations with the looming Great War in order to study Thomas’s use of natural imagery in the context of grief, melancholy, and traumatic experience. To …

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Diurnal And Nocturnal Avian Antipredator Behavior In Thermally Challenging Conditions, Jennie M. Carr Aug 2013

Diurnal And Nocturnal Avian Antipredator Behavior In Thermally Challenging Conditions, Jennie M. Carr

All-Inclusive List of Electronic Theses and Dissertations

Diurnal avian antipredator behavior has been the focus of much past research, yet the influence of the thermal environment on such behaviors is often overlooked. Far less is known about nocturnal avian antipredator behavior, including how these behaviors are influenced by challenging thermal environments. The first portion of my research focused on how the thermal environment influences the diurnal antipredator behavior of wintering birds while (i) exposed to high wind speeds, (ii) foraging in sunlit and shaded microhabitats, and (iii) when using thermoregulatory postures to conserve body heat. In addition to increasing convective heat loss, high wind speeds increase the …

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Effects Of A Corn Root Defense Substance On Western Corn Rootworm Diabrotica Virgifera Virgifera Leconte Larvae, Zixiao Zhao Aug 2013

Effects Of A Corn Root Defense Substance On Western Corn Rootworm Diabrotica Virgifera Virgifera Leconte Larvae, Zixiao Zhao

Department of Entomology: Dissertations, Theses, and Student Research

The objectives of this research were to evaluate the effects of hydroxamic acids, a group of corn root defense substances on western corn rootworm (Diabrotica virgifera virgifera LeConte) larvae and identify putative molecular mechanisms for hydroxamic acid detoxification. Corn line 428G carries a homozygous mutant bx1 gene, which makes it unable to synthesis hydroxamic acids. In contrast, H88 is the wild type parental line of 428G and is able to synthesize hydroxamic acids. Larvae were fed on 428G and H88 roots for 7 days for comparison. No significant difference was observed in growth, development, or survival rate. A RNA-Sequencing …

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Stonewall Jackson Resort Master Plan: An Ecological Model For Stormwater Management That Engages And Educates Through Context Sensitive Low-Impact Development Strategies, Claire E. Jeran Aug 2013

Stonewall Jackson Resort Master Plan: An Ecological Model For Stormwater Management That Engages And Educates Through Context Sensitive Low-Impact Development Strategies, Claire E. Jeran

Graduate Theses, Dissertations, and Problem Reports (ETD)

Stonewall Jackson Lake State Park sits in central West Virginia in the heart of the Appalachian Mountains. The dammed lake and state park opened to the public over two decades ago and development within the property continues today. The attention to stormwater management, vegetation, and public awareness of their connection to the natural environment become an integral component to an ecologically sustainable landscape. This project focuses on the eighteen acres surrounding the lodge buildings on a lakefront peninsula. The design responded to a thorough analysis and seeks to enhance the visitor's experience through use of new program elements, circulation patterns, …

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The Effect Of Melatonin Or Maternal Nutrient Restriction On Cell Proliferation In The Ovine Placenta, Adam Walter Eifert Aug 2013

The Effect Of Melatonin Or Maternal Nutrient Restriction On Cell Proliferation In The Ovine Placenta, Adam Walter Eifert

Graduate Theses, Dissertations, and Problem Reports (ETD)

Our objectives were to assess melatonin receptor dependent modulation of placental cell proliferation following treatment with either melatonin, luzindole (melatonin receptor 1 and 2 antagonist), or vehicle. In addition, a second study was conducted to assess placental cell proliferation following dietary melatonin treatment in a maternal nutrient restriction model. For the first experiment, 14 primiparous ewes were fitted with Alzet mini osmotic pumps attached to a catheter and infused with vehicle, melatonin, or luzindole from d 62 to 90 of gestation. Ewes were euthanized and placentomes collected for analysis at the end of the 4 week infusion. For the second …

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Analog Signal Buffering And Reconstruction, Brandon M. Kelly Aug 2013

Analog Signal Buffering And Reconstruction, Brandon M. Kelly

Graduate Theses, Dissertations, and Problem Reports (ETD)

Wireless sensor networks (WSNs) are capable of a myriad of tasks, from monitoring critical infrastructure such as bridges to monitoring a person's vital signs in biomedical applications. However, their deployment is impractical for many applications due to their limited power budget. Sleep states are one method used to conserve power in resource-constrained systems, but they necessitate a wake-up circuit for detecting unpredictable events. In conventional wake-up-based systems, all information preceding a wake-up event will be forfeited. To avoid this data loss, it is necessary to include a buffer that can record prelude information without sacrificing the power savings garnered by …

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West Virginia High School Guidance Counselors Perceptions And Interactions With Agricultural Education Programs In Their Schools, Nicole Riggle Shipman Aug 2013

West Virginia High School Guidance Counselors Perceptions And Interactions With Agricultural Education Programs In Their Schools, Nicole Riggle Shipman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Guidance or vocational counselors have a strong influence over student placement in agricultural education programs. A descriptive research design using a mailed questionnaire was used for this study to determine methods used by West Virginia high school guidance counselors to determine student placement in agricultural education classes. The study found that a majority of the guidance counselors do not have an agricultural background. A majority of the counselors report enrolling students in agricultural programs regardless of their college or career goals. Counselors view agricultural teachers as concerned for students' achievement and personal growth and believe agricultural educators should be involved …

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Evaluation Of Growth And Survival Of Hardwood Trees On Brown And Gray Sandstone, Lindsay M. Wilson-Kokes Aug 2013

Evaluation Of Growth And Survival Of Hardwood Trees On Brown And Gray Sandstone, Lindsay M. Wilson-Kokes

Graduate Theses, Dissertations, and Problem Reports (ETD)

Deciduous forests in the Appalachian region have been greatly disrupted due to surface coal mining since the 1930's. After the passage of the Surface Mining Control and Reclamation Act (SMCRA) in 1977, coal mine operators began planting a variety of grasses and legumes as a fast and economical way to re-establish a permanent vegetative cover in order to meet erosion and site stabilization requirements. However, soil compaction and competitive forage species have arrested the re-colonization of native hardwood tree species on these reclaimed sites. In an effort to evaluate tree growth on selected spoils and determine the effects of compaction, …

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Formulation And Evaluation Of A Novel Irrigant For The Disinfection Of Root Canals Using A Candida Albicans Biofilm Model, Dustin S. Reynolds Aug 2013

Formulation And Evaluation Of A Novel Irrigant For The Disinfection Of Root Canals Using A Candida Albicans Biofilm Model, Dustin S. Reynolds

Graduate Theses, Dissertations, and Problem Reports (ETD)

An important goal of root canal therapy is elimination of microorganisms which are usually organized into a biofilm phenotype. Irrigants play an indispensable role in areas inaccessible to mechanical instrumentation. In this study, a novel endodontic irrigant was formulated composed of a penetrating solvent, 70% Dimethyl sulfoxide (DMSO), with a 1:1 molar ratio of an antibiotic (Clindamycin HCl) and antifungal agent (Nystatin). Nuclear Magnetic Resonance Spectroscopy (NMR) stability tests were conducted to prove the mixture was chemically stable. This study compared different concentrations of the novel irrigant to 6% sodium hypochlorite (NaOCl) using a C. albicans biofilm model. Furthermore, it …

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Completion Rates In West Virginia Community And Technical Colleges, Angelic M. Kinder Aug 2013

Completion Rates In West Virginia Community And Technical Colleges, Angelic M. Kinder

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research examined withdrawal and completion rates in courses at public community colleges in West Virginia during the Fall 2009 and Fall 2010 semesters. Online distance education has quickly gained popularity over the previous ten years, and the number of students enrolling in online education has increased at a higher rate than overall enrollment in higher education. Few studies have analyzed withdrawal and completion rates specifically in online courses. Why is student attrition so high? How does this vary from traditional face-toface courses? What can institutions do to prevent online students from withdrawing and not completing courses? This study performed …

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The Landscape Of Rna Polymerase Ii Transcription Initiation In C. Elegans Reveals Promoter And Enhancer Architectures, Ron A.-J Chen, Thomas A. Down, Przemyslaw Stempor, Q. Brent Chen, Thea A. Egelhofer, Ladeana W. Hillier, Tess E. Jeffers, Julie Ahringer Aug 2013

The Landscape Of Rna Polymerase Ii Transcription Initiation In C. Elegans Reveals Promoter And Enhancer Architectures, Ron A.-J Chen, Thomas A. Down, Przemyslaw Stempor, Q. Brent Chen, Thea A. Egelhofer, Ladeana W. Hillier, Tess E. Jeffers, Julie Ahringer

Open Access Publications

No abstract provided.

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The Evolution Of The Paleopolyploid Genome In Family Salicaceae, Eli Rodgers-Melnick Aug 2013

The Evolution Of The Paleopolyploid Genome In Family Salicaceae, Eli Rodgers-Melnick

Graduate Theses, Dissertations, and Problem Reports (ETD)

Whole genome duplication is a recurrent phenomenon throughout the history of flowering plants, with at least 1 occuring in the history of each angiosperm lineage. However, following duplication the genome typically undergoes a period of increased structural rearrangements and gene loss, resulting in a diploidized genome with large stretches of syntenic regions resulting from the duplication. This process, termed fractionation, often exhibits biased patterns of gene retention, which appear to correspond with the putative connectedness of genes within biological networks. In this thesis, I explore the extent to which the same biases appear in duplicate genes from the most recent …

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