Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"Molecular variation"”.
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The study of molecular variation in Atlantic salmon (Salmo salar L.) and brown trout (Salmo trutta L.)
… look at the existence and scale of genetic variation from different angles, it might be concluded that the overarching message from this thesis should be to highlight the importance of maintaining genetic diversity in salmonid populations as vital for their long-term productivity and …
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Insights into transcriptional regulation from natural and induced variation in closely related species
… as in vivo systems that leverage a pool of molecular variation, in order to study the activity and roles of TF binding within wider functional contexts. The molecular variation is manifested as variation in the sequence context and/or in the binding activity of the TFs, and it may be …
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Evolutionary relationships in Oryza inferred from the gene that encodes the 10 kDa prolamin (seed storage protein) polypeptide
… this study are to evaluate the rate and type of molecular variation present in the gene that encodes the 10 kDa prolamin polypeptide in Oryza (Poaceae), and use this information in understanding the evolution of the Oryza genus. Our principle hypothesis is that genetic diversity exists at the …
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Najas genties augalų genetinės įvairovės tyrimas taikant SCoT žymenis /
… coordinate analysis (PCoA), analysis of molecular variation (AMOVA) along with Shannon index, expected heterozygosity and unique loci values showed that ISSR is particularly useful in distinguishing between these species, but shows low intraspecific variation. SCoT poorly separated both …
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Genetic variation of the ribosomal DNA intergenic spacer of maize
… BS10, BS11, RBS10, and RSSSC, were assayed for molecular variation in the ribosomal DNA (rDNA) intergenic spacer (IGS) at initial and advanced cycles of selection. RSSSC and RBS10 underwent reciprocal recurrent selection with an inbred tester in a high yield environment, whereas BS10 and BS11 …
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Investigation of DNA Variability and Phylogenetic Relationships of Perlesta (Plecoptera: Perlidae) in Mississippi
… DNA. This study revealed a broader degree of molecular variation in individuals from Mississippi relative to species from other states, which suggests greater infraspecific DNA variation in these species or possibly the presence of cryptic species.</p>
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Functional Analysis of Genomic Variation and Impact on Molecular and Higher Order Phenotypes
… We generated the most detailed picture of molecular variation between the two mouse strains to date and identified 5.4 million sequence polymorphisms, including, 4.46 million single nucleotide polymorphisms (SNPs), 0.94 million intersections/deletions (indels), and 20,000 structural …
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Molecular Systematics & Evolution of the CTENOSAURA HEMILOPHA Complex (SQUAMATA: IGUANIDAE)
<p>Molecular variation within <em>Ctenosaura hemilopha</em> and among other <em>Ctenosaura</em> species are used to identify species boundaries, assess suitable systematic characters, identify evolutionary patterns within <em>C. hemilopha</em> mitochondrial DNA sequences and reconstruct species and …
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Development of prairie cordgrass (spartina pectinata link) as a dedicated bioenergy crop
… cordgrass natural populations revealed extensive variations in biomass yield and phenotypic traits associated with biomass yield among these populations. A survey of molecular variation of 96 natural populations identified significant population structures and potential gene pools within the …
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Determination of cell fate selection during phage lambda Infection
… while others survive as lysogens. A quantitative molecular model of lambda infection supports the hypothesis that spontaneous differences in the timing of individual molecular events during lambda infection leads to variation in the selection of cell fates. Building from this analysis, the lambda …
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Genetic structure and colonisation history of European and UK population of Gammarus pulex
… biology and history. With the use of molecular data and advanced phylogeographic approaches it is now possible to distinguish between the main causes of population structuring. The present study considers the extent of population structure in G. pulex on regional (UK) and large …
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Molecular and Mechanical Heterogeneity in Adult and Paediatric High-Grade Glioma
… Recent work has advanced our understanding of molecular variation among adult and paediatric HGGs, providing definitions of tumour subtypes according to genetic alterations and cell state. However, it is unclear how these molecularly-defined profiles align with other factors guiding tumour …
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Predicting the Antigenic Evolution of Influenza Viruses with Application to Vaccination Strategy
… and vaccine effectiveness. Knowledge of the molecular variation responsible for major antigenic change in natural influenza viruses has improved greatly in the last decade. I review this work, and present the application of a computational approach from the field of quantitative genetics to …
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Behavioral Ecology, Taxonomy, and Conservation Genetics of the Bahama Oriole (Icterus northropi)
… In the first of five studies, I measured plumage variation among four allopatric populations of the former Icterus dominicensis complex in the Caribbean. Diagnosable plumage differences among populations contributed to the subsequent elevation of each of these populations (including northropi) to …
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Spatial and Temporal Patterns of Genetic Variation in Scarlet Macaws: Implications for Population Management in La Selva Maya, Central America
Advances in technology and molecular methodologies now provide an unprecedented view into the complex realm of natural populations by elucidating the degree and distribution of genetic variation, historical and contemporary processes driving differentiation, and individual behavior patterns. These …
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Spectroscopic investigation of photo-induced proton-coupled electron transfer and Dexter energy transfer in model systems
… of similar dielectric constant to establish that molecular variation of the solvent environment impacts PCET, likely through its interaction with the proton interface (Chapter V). Two water-soluble amidinium-appended ferrocene moieties are presented as building blocks for aqueous bi-directional …
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A contribution to species delimitation and taxonomy of North American Entomobrya (Collembola: Entomobryidae)
Recent molecular phylogenetic studies have revealed that Collembola diversity estimates based on morphological characters have been greatly underestimated. High levels of DNA sequence divergence among congeneric species suggest that circumscription of species based solely on traditional …
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Neurogenomic architecture of honey bee social behavior
… occurring honey bee behavior to elucidate molecular mechanisms that process environmental information and give rise to social organization. In Chapter 1, I review current literature regarding the neurogenomic basis of social interactions, with emphasis on progress in honey bee research. …
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