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 16 of 16 for “"Flower color"”.
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Inheritance of flower color in alfalfa
To view the abstract, please see the full text of the document.
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The Phenotypic Impact of Transgenic Flower Color Variation in Ipomoea quamoclit.
… gene change in <em>Ipomoea quamoclit</em>, a red-flowering morning glory, that was genetically engineered to bloom blue.</p> <p>Plants of the wild-type and the genetically engineered type were grown in Georgia Southern University’s greenhouse. Half the plants were grown in gallon size pots. The …
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The Role of Carotenoid Cleavage Dioxygenase 4 in Flower Color of the Allopolyploid Brassica napus
… (farmed as canola or oilseed rape). With white-flowering and yellow-flowering progenitors, flower color phenotype of <em>B. napus </em>presents an opportunity to examine subgenomic interactions. <em>CAROTENOID CLEAVAGE DIOXYGENASE</em> 4 (<em>CCD4</em>)<em> </em>is known to play a major role in …
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Breeding for High Yield and High Protein in Soybean and the Potential Use of New Flower Color Genes
Six Harosoy 63 isolines that differ for flower color were evaluated for pleiotropic effects of the alleles for flower color. Blue (W1w3W4 wb?) and near white (W1w3w4Wb?), the only isolines tested that have recessive alleles at two loci, showed significantly higher oil concentrations than the other …
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Potato genomics three ways: quantification of endoreduplication in tubers, a romp through the transposon terrain, and elucidation of flower color regulation
… we expose the gene underlying the potato flower color locus, a homolog of AN2, while showing the effects it exerts on the flavonoid biosynthesis and fruit ripening pathways. This region was shown to be particularly dynamic, replete with MITEs and structural variants which we hypothesize to …
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Conservation Genetics of Narrowly Distributed Annual, <em>Erythranthe discolor </em>(Phrymaceae), in the Southern Sierra Nevada
Erythranthe discolor is a rare, narrowly distributed annual, endemic to California and occurs in the southern Sierra Nevada in Kern and Tulare counties with known flower color polymorphisms. There are 133 known occurrences of E. discolor with the core of its range found in the Piute Mountains in …
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An Examination of Puccinia Mariae-Wilsoni Infection of Claytonia Virginica
… mariae-wilsoni is known to infect the native wildflower, spring beauty (Claytonia virginica), but little is known about the dispersal mechanisms. Wind or ants and other insects may be responsible for dispersal by transferring fungal spermatia or spores among neighboring plants. I experimentally …
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An in vitro system for selection and characterization of acifluorfen-tolerant Solanaceous plants
… BA. Somaclones regenerated varied in leaf shape, flower morphology, flower color, and fertility. Variation depended on genotype, with some changes heritable over 2 generations of selfing, and others due to differences in ploidy.
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Molecular, Genetic, and Agronomic Evaluation of Wp and Wp-M in Soybean
… Chimeric (purple and pink sectored) flowers were hypothesized to result from the genetic action of a wp-m transposable element. The objectives of this research were to (1) clone a 3'5' flavonoid hydroxylase enzyme from the soybean genome and characterize its cosegregation with flower …
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Molecular Evolution of Anthocyanin Biosynthesis in Morning Glories
… I determine the molecular genetic basis of a flower color transition that is associated with change in pollinator attraction in morning glories. A regulatory change in a branching gene in the flavonoid biosynthetic pathway restricted flux down the cyanidin-producing branch, conferring nearly …
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Identifying and characterizing genes and transcription factors involved in coloration of apple fruit
… important determinants of fruit quality is skin color. Red coloration in apple fruit is attributed to anthocyanin accumulation. Anthocyanins are encoded by structural genes, in the anthocyanin biosynthetic pathway, which are highly regulated by transcription factors. In this thesis, studies were …
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Sunflower, Helianthus annus L., Cut Flower Variety Trial
Sunflower, Helianthus annus L., native of North America, is widely grown for oil, bird feed, and human snacks. More recently, sunflower is gaining acceptance as an ornamental potted plant and as a cut flower in the florist industry. The objectives of the present study were: 1. To evaluate diverse …
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Analyses of a genic male-sterile mutant in soybean
… was detected between the male-sterile gene and flower color (W1 locus), or between the male-sterile gene and pubescence color (T1 locus). Developmental and enzymatic studies showed that sterility was caused by retention of the callose walls, which normally are degraded by callase …
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Pollination ecology of the simultaneously flowering Impatiens capensis and I. pallida
… proposed for foraging behavior in simultaneously flowering species and those dealing with optimal foraging. Such foraging behavior could have potentially devastating effects on the nonpreferred species, especially if the plant is an annual. Both Impatiens species share the same primary pollinators …
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The Role of Visual and Olfactory Cues in Host Recognition for the Specialist Bee Genus Diadasia, and Implications for the Evolution of Host Choice
… of visual and olfactory cues presented by flowering plants. Species in the genus Diadasia collect pollen from just one of five plant families: Cactaceae, Malvaceae, Onagraceae, Asteraceae, and Convolvulaceae. Assuming a common ancestor for all Diadasia specialized on just one plant, this …