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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 14 of 14 for “"nuclear DNA content"”.
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The Significance of Inter- and Intraspecific DNA Content Variation in Agriculturally Important Species
This dissertation examined the total nuclear DNA content variation in agriculturally important plant species and determined any differences. The nuclear DNA content of 40 Malus species and hybrids was examined using flow cytometry. Estimates of total nuclear DNA content for this collection ranged …
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Repetitive DNA sequences in maize: Possible roles in plant adaptation and transient gene expression
Fluctuations as high as 40% in the nuclear DNA content in maize have been observed as a result of adaptive response. The knob DNA sequence has been reported to contribute 16% of this variation. Other DNA sequences involved in genome size variation due to adaptive response have yet to be identified. …
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Discovery of new biomarkers of mild cognitive impairment and Alzheimer's disease risk in buccal cells using laser scanning cytometry
… invasive manner, and exhibit cytological and nuclear morphologies that may be indicative of accelerated ageing or neurodegenerative disorders such as AD. The hypothesis that a minimally invasive approach using isolated buccal mucosa cells can be used to identify individuals diagnosed with MCI …
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Derivation and Comparison of Androgenic and Gynogenic Monoploid Potato Families
… progeny of PP5 and BARD1-3 had 3-8% greater nuclear DNA content than gynogenic monoploids derived from the same parental clones.
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Isolation and characterization of the SIAMESE family: a novel class of cell cycle regulators in plants
… trichomes, which are single cells with a nuclear DNA content of approximately 16-32C. These observations suggested that SIM is required to suppress mitosis as part of the switch to endoreplication in trichomes. We demonstrate that SIM encodes a novel 14kD protein that is part of a small …
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Evolutionary history of the canary grasses (Phalaris, Poaceae)
… reconstruction of the genus based on the nuclear ITS and plastid trnT-F DNA regions allowing species relationships and the importance of polyploidy in speciation to be assessed. Divergence dates for the genus were determined using Bayesian methods (BEAST, version 1.6.2) and historic …
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Cytogenetics and genome structure in genus Miscanthus, a potential source of bioenergy feedstocks
… on the genus Miscanthus using morphology and DNA sequence variation. This study (chaper 2) combines information on genome size and ploidy levels and DNA sequence variation to classify Miscanthus accessions to aid potential biomass crop improvement programs and to investigate the evolution of …
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Novel Biomarkers within Extracellular Vesicles for the Identification of Traumatic Brain Injury
… of EVs are also reflected in both mitochondrial DNA content, nuclear DNA content, and brain-derived cellular markers NFL, GFAP, and Iba1. Additionally, we combined a global mass spectrometry proteomics approach with biostatistical analysis and computational Graph Neural Network (GNN)-based …
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The adaptive potential of plant endopolyploidy in response to herbivory
… measures correlated with an overall increase in nuclear DNA content due to endoreduplication. Landsberg erecta, however, experienced no change in its nuclear DNA content. These results provided the first correlative evidence of endoreduplication’s role in mitigating the stress of herbivory. After …
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Autoradiographische Untersuchungen zu nukleären DNA-Strangbrüchen in unterschiedlichen Zellarten im Gehirn der Maus nach einer achtwöchigen 50-Hz-Magnetfeldexposition
… to investigate the relative number of unrepaired nuclear (n) DNA nicks in different cell types in the brain of the 9-month-old mouse after a 2-month exposure to a 50 Hz magnetic field with 0 mT (control), 0.1 mT or 1 mT. 5 minutes after the end of the magnetic field exposure, the mice were …
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Einfluss einer achtwöchigen 50-Hz-Magnetfeld-Exposition auf DNA-Reparatur und mitochondriale DNA-Synthese von Sammelrohr-Epithelzellen der Niere
… was used to elucidate the question whether a nuclear exposure to a 50 Hz magnetic field over a period of eight weeks causes DNA-damage and influences mitochondrial mtDNS-synthesis.2) Altogether, 81 male, seven months old mice were exposed over a period of eight weeks to a magnetic field (MF) …
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Molecular analysis of sex chromosome evolution in papaya
… stages and the degeneration and loss of gene content, the X chromosome has long been thought to conserve the ancestral autosome’s structure and gene content. To determine whether the papaya X chromosome remained evolutionarily static and to compare the changes seen in the HSY and X regions to …
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Functional studies of lignin biosynthesis genes and putative flowering gene in Miscanthus x giganteus and studies on indolyl glucosinolate biosynthesis and translocation in Brassica oleracea
… othologous sequences. Southern hybridization and nuclear DNA content analysis indicated that the genes isolated from M. x giganteus exist in the genome of other Miscanthus species as multiple copies. Analysis of lignin content and histological staining of lignin deposition indicated that higher …
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Die Notwendigkeit der Doppelfärbung für Zytokeratin und DNA in der Durchflusszytometrie sowie ihre Bedeutung für die durchflusszytometrische Erfassung von p53 am Beispiel des Mammakarzinoms
Die DNA-Durchflusszytometrie ist eine anerkannte Methode zur Erfassung genetischer Abweichungen und Änderungen der Proliferationsfraktion von Tumorzellen. Die Aufarbeitung von Tumorzellen mit vorhandenen Begleitpopulationen bewirkt allerdings bei der Einfachfärbung der DNA eine Ungenauigkeit der …