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 24 for “"allozymes"”.
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Relationships Between Genetic and Ecological Variables in Nine Populations of Phlox Drummondii Hook (Niche, Allozymes, Genetic Differentiation)
The niche-variation hypothesis, which predicts a correlation between niche breadth and level of genetic variation, was tested using nine populations of the annual plant, Phlox drummondii, from south central Texas. Niche breadth was measured as population response along controlled environmental …
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Population structure, biochemical adaptation and systematics in temperate marine fishes of the genera Arripis and Chrysophrys (Pisces: Perciformes)
… dehydrogenase (IDH) and salmon malic enzyme (ME) allozymes to determine whether or not functional differences existed in response to temperature fluctuation. It was found that differences did exist between IDH allozymes, but that the functional variation was correlated with heat stability variants …
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Population structure, biochemical adaptation and systematics in temperate marine fishes of the genera Arripis and Chrysophrys (Pisces: Perciformes)
… dehydrogenase (IDH) and salmon malic enzyme (ME) allozymes to determine whether or not functional differences existed in response to temperature fluctuation. It was found that differences did exist between IDH allozymes, but that the functional variation was correlated with heat stability variants …
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Population structure of Atlantic herring, Clupea harengus L., in the northeast Atlantic using phenotypic and molecular approaches
… morphometries, otolith shape) and molecular (allozymes, mitochondrial DNA RFLPs, micro satellites) markers were simultaneously used to investigate the morphological and genetic structure of herring populations in the Northeast Atlantic and also to assess the relative usefulness of phenotypic …
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Determining parentage and the effects of relatedness on play partner preference in Belding's ground squirrels
… <em>U. beldingi</em>. Prior work with blood allozymes demonstrated multiple paternity in <em>U. beldingi</em> litters. I evaluated paternity using microsatellite DNA analysis, which is more accurate than examining blood allozymes. My results indicate that multiple paternity in <em>U. …
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The Relationship of Discrete Amino Acid Regions to the Biochemical Properties of Human Phenol Sulfotransferases (SULTs)
… (STILT) enzymes in humans is SULT1 Al. Allozymes (expressed allelic variants) of SULT1A1 have been detected in human blood platelets at different proportions in separate ethnic populations. The SULT1A1 level of activity and thermal stability measured in the human population are variable. …
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Spatial structuring in trait variation in Polyommatus icarus in a functional context
… and voltinism. These traits together with allozymes and a neutral DNA marker (AFLP) variation are studied here to understand how geographic trait variation is related to environmental variation. The approach adopted here is to study this along a latitudinal cline of temperature and …
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Biochemical investigations of the evolution and systematics of certain pocket mice (Rodentia: Heteromyidae)
… of differences in morphology, karyotypes and allozymes between the subspecies of Chaetodipus penicillatus, others have suggested that this taxon may include cryptic species. The subspecies C. p. penicillatus and C. p. pricei were examined here.
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Population genetic structure of Antarctic springtails (Collembola) and New Zealand damselflies (Odonata)
… an analysis of molecular data (mtDNA and allozymes) on two arthropod taxa. The thesis consists of two chapters. Chapter I describes the distribution of mitochondrial (mt) DNA haplotypes for the Antarctic springtail Gomphiocephalus hodgsoni (Collembola) in Taylor Valley, southern Victoria …
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Population genetics, behavioural ecology and management of the Greywing Francolin Francolinus africanus
… Examination of genetic variability based on allozymes disclosed estimates of average within-population heterozygosity higher than that for most birds, and for all other galliformes for which data are available. Thus, Greywing apparently have a high degree of population stability and large …
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Population genetics of the genus Transennella (Bivalvia)
… of the pelecypod genus Transennella, Variable allozymes include esterase, leucine aminopeptidase, malate dehydrogenase, phosphoglucose isomerase, tetrazolium oxidase, and nonenzymatic protein, Observed allele frequencies for these systems are in close agreement with Hardy-Weinberg expectations …
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Phylogeography of the Night Lizard, Xantusia henshawi, from Southern California
… from <em>X h. henshawi</em> in morphology, allozymes, ecology, and natural history.</p> <p>In this study, intraspecific variation within <em>Xantusia henshawi</em> was analyzed by constructing a genealogy using mitochondrial DNA (mtDNA) sequence data. A 379 base pair region of mtDNA …
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Genetic structure and colonisation history of European and UK population of Gammarus pulex
… scales using studies of molecular genetic (allozymes, mtDNA sequencing and microsatellites) and morphological variation.Molecular analysis of Gammarus pulex in Europe revealed more diversity than previously thought. This was thought to be a consequence of two separate waves of colonisation …
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Y chromosome and allozyme correlates of geotaxis in selected lines of Drosophila melanogaster and their hybrids
… (PGD) at Generation 66, and only for the allozymes at Generation 93 following hybridization. Allelic differences in ADH were associated with geotactic differences, indicating that a gene near Adh (2-50.1) is correlated with geotaxis in these lines, which is consistent with previous results …
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AN ELECTROPHORETIC ANALYSIS OF THE GENETIC VARIATION IN THE WILD AND CULTIVATED SOYBEAN GERMPLASM
… for genetic variation in 15 enzymes. Allozymes for 25 loci were found. All but three of these loci were confirmed by experimental crosses. Approximately 20 non-variable loci were also hypothesized. Models presented explaining the genetic control for each of the observed enzyme …
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A biosystematic study of the Lasthenia californica complex (Asteraceae)
… morphologically, chemically or by their allozymes. The isozyme study suggests that the tetraploid populations are of an autopolyploid origin. The only hexaploid population sampled was not analysed for its isozyme variation.
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Multitrophic Interactions in a Prairie Insect Community: Ecology, Behavior, and Conservation
… identify their natal host plant species. I used allozymes to determine that sub-populations of A. rufus are specialized and reproductively isolated on their host plant species and then described the Antistrophus rufus species complex, providing descriptions and morphological diagnoses for A. …
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Genetic Characterization of Intermixed Walleye Stocks in Claytor Lake and the Upper New River, Virginia
… in other areas, such as Fosters Falls. Using allozymes, microsatellite DNA, and mitochondrial DNA marker techniques to examine population structure of walleye, I determined that the walleye within Claytor Lake are a panmictic population. This is the result of years of stocking walleye from …
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Population genetic structures and dispersal patterns of arthropods in New Zealand and the Ross Dependency, Antarctica
… Regional genetic divergence was revealed using allozymes and mtDNA (COI) for populations of the endemic Antarctic collembolan Gomphiocephalus hodgsoni from southern Victoria Land and Ross Island (Ross Dependency). Genetic discontinuities across geographical barriers (e.g. sea-ice) suggest …
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Geographical and temporal variation of biochemical and colour-pattern polymorphisms in the European moth, Noctua pronuba (L.).
… phenotype frequencies. A study of polymorphic allozymes suggested that large amounts of gene flow occur in the species. The consequence of this gene flow will be to unite geographically separate populations into one panmictic unit. High levels of gene flow, in conjunction with the local …
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