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 81 for “"flowering time"”.
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THE RNA-BINDING PROTEIN LRP1 MEDIATES FLOWERING TIME IN ARABIDOPSIS
In flowering plants such as <i>Arabidopsis thaliana</i>, floral transition is tightly regulated by a complex network of genetic pathways. FLOWERING LOCUS C (FLC), a MADS-box transcription factor, is a strong repressor of this flowering process, intricately controlled by several genetic pathways, …
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Genetic control of flowering time and biomass yield in sorghum
… yield. Most biomass sorghums are very late flowering to maximize vegetative growth. In order to understand the genetic control of flowering time and biomass yield in sorghum, we used a diverse panel of more than 400 exotic sorghum inbreds to perform association mapping for flowering time, …
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Genetic Improvement of Switchgrass Cell Wall Content, Leaf Angle and Flowering Time
… monolignol composition, and also causing delayed flowering time in switchgrass. Global gene-expression analysis of AtLOV1 transgenic plants demonstrated an array of genes has altered expressions. Potential downstream genes involved in the pleiotropic phenotypic traits of the transgenic plants are …
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Functional analysis of candidate flowering time genes from the model legume Medicago truncatula
Flowering at optimal times promotes the success of plant sexual reproduction and agronomic productivity and yield. Legumes are the second most important group of crop plants, but their flowering gene networks are less well understood than in the Brassicaceae and Poaceae. Medicago truncatula …
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Flowering Time Response of Diverse Lentil (Lens Culinaris Medik.) Germplasm Grown in Multiple Environments
… was better described in the form of thermal flowering time (TFT) by considering 5°C base temperature in long day environments. A complete model to analyze the interaction effect of temperature and photoperiod in DTF variation could not be confirmed due to constraints associated with the …
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Functional specialization of Arabidopsis poly(A) polymerases in relation to flowering time and stress
… work. An involvement of all three cPAPs in flowering time regulation and stress response regulation is shown. While paps1 knockdown mutants flower early, paps4 and paps2 paps4 knockout mutants exhibit a moderate late-flowering phenotype. PAPS1 promotes the expression of the major flowering …
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The Nature of Selection on Flowering Time: Integrating Fitness Contributions through Male and Female Function
… the nature of selection on the timing of flowering onset - a trait of practical and theoretical importance - with equal emphasis on female and male function. The potential male fitness effects are many. First, flowering time may directly (or indirectly through correlation with another …
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Role of Heterochromatic Knob DNA in Development and Flowering Time in Maize (Zea Mays L.)
… DNA in determining the rate of development and flowering time in maize (Zea mays L.). The knob compositions of 41 inbred lines and varieties of maize were determined. In almost all U.S. commercial lines, a large knob on the long arm of chromosome 7 was present, followed by one on the long arm of …
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Dissecting key biomass and adaptation traits of Miscanthus through genetic mapping, exploring mechanisms of cold tolerance, and flowering time in Miscanthus and Saccharum
… DNA sequencing. We confirmed for the first time a whole-genome duplication in M. sacchariflorus relative to Sorghum bicolor, similar to that observed previously for M. sinensis. Four quantitative trait locus (QTL) analysis methods for detecting marker-trait associations were compared: 1) …
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Genetic diversity of the HvFT1 flowering gene in Nordic spring barley (Hordeum vulgare L.)
HvFT1 is a gene with an important role in flowering time regulation in barley (Hordeum vulgare L.). It functions as a central integrator for signals of the vernalization, photoperiod and circadian clock pathways and promotes flowering. This is of interest for barley breeders on Iceland, who aim to …
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Natural variation of water use and water productivity in Arabidopsis thaliana
… Arabidopsis thaliana (Arabidopsis). At the same time, a substantial degree of criticism has arisen with respect to the use of drought resistance and WUE as measures of plant performance, due to the lack of relatedness of these parameters to reproductive performance, i.e. yield. The work in this …
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Phenological responses of British orchids and their pollinators to climate change: an assessment using herbarium and museum collections
… the phenological responses to temperature of flowering in British orchids and flight in their pollinators. Herbarium specimens of O. sphegodes collected in the UK between 1848 and 1958 were compared to direct observation of peak flowering time in one population located in Southern England …
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Genetics Analysis of Standing Variation for Floral Morphology and Fitness Components in a Natural Population of Mimulus Guttatus (Common Monkeyflower)
… and length, pistil length, and stamen length), flowering time, and leaf size. We also mapped segregation distortion loci and QTLs for fertility components (pollen viability and seed set) that exhibit inbreeding depression. We compare the genetic architecture of these two sets of traits and find …
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Nitrate: metabolism and development
… whereby nitrogen is regulating the transition to flowering time in Arabidopsis thaliana. To gain more insights into the regulation of primary metabolism by the functional characterization of the glutamate dehydrogenase (GDH) family, an enzyme putatively involved in the metabolism of amino acids …
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How Are Rare Species Maintained?: Reproductive Barriers Between Layia jonesii, a Rare Serpentine Endemic, and L. platyglossa
… edaphic environments on the hillside, (2) flowering time differences, and (3) reduced seed set resulting from hybrid crosses. To investigate the local adaptation of <em>L. jonesii</em> and <em>L. platyglossa, </em>I reciprocally transplanted both species into the center of each species’ …
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Functional characterization and analysis of Carica papaya SHORT VEGETATIVE PHASE (CpSVP)
… is sub-functionalized on both pedicel length and flowering time regulation while the autosomal allele is only involved in the former function. The CpSVP-Yh allele had no effect on pedicel length or flowering time. In Arabidopsis, we studied the spatial and temporal expression of CpSVP during …
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Preliminary quantitative trait loci analysis for biomass traits in Miscanthus sinensis
… testcross mapping population segregating for flowering time, height, leaf width, and yield. An initial look at the genetic architecture underlying traits important to biomass production in a population of 221 progeny from the cross of M. sinensis accession ‘Grosse Fountaine’ with M. sinensis …
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A Role for Late Meristem Identity2 in the Reproductive Development of Arabidopsis
… affects the reproductive success of flowering plants. In Arabidopsis thaliana , this transition is in large part controlled by the meristem identity regulator LEAFY (LFY) and the LFY direct target APETALA1 (AP1 ). The molecular mechanisms by which LFY orchestrates a precise and robust …
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