Sökning: "Arabidopsis genetics"
Visar resultat 6 - 10 av 40 avhandlingar innehållade orden Arabidopsis genetics.
6. Novel Statistical Methods in Quantitative Genetics : Modeling Genetic Variance for Quantitative Trait Loci Mapping and Genomic Evaluation
Sammanfattning : This thesis develops and evaluates statistical methods for different types of genetic analyses, including quantitative trait loci (QTL) analysis, genome-wide association study (GWAS), and genomic evaluation. The main contribution of the thesis is to provide novel insights in modeling genetic variance, especially via random effects models. LÄS MER
7. Epigenomic landscape of Arabidopsis thaliana
Sammanfattning : The basal unit of information storage in the cell is at the level of the DNA sequence. Dynamic packaging of DNA into chromatin allows additional regulatory layers. Two pairs of each histones H3, H4, H2A and H2B constitute an octamer around which about 146 base pairs of DNA are wrapped to build the basic unit of chromatin: the nucleosome. LÄS MER
8. Population genomic analyses of regulatory variation and selection in Brassicaceae species
Sammanfattning : The impact of selection on regulatory variation and the contribution of regulatory changes to phenotypic variation has long been debated in evolutionary genetics. Because cis-regulatory elements such as promoters and enhancers can be difficult to identify, it has been more challenging to quantify the impact of selection on variation in cis-regulatory regions than in protein-coding regions. LÄS MER
9. Mechanisms of unreduced gamete formation in Arabidopsis thaliana
Sammanfattning : Polyploidy is a widespread phenomenon in plants, which is commonly believed to arise through the production of unreduced (2n) gametes due to meiotic failure. Despite the importance of unreduced gamete formation for plant polyploidization, the mechanisms leading to their formation are not well understood. LÄS MER
10. Signalling mechanisms and epigenetic regulation of seed development in Arabidopsis thaliana
Sammanfattning : In flowering plants, seed development starts with a double fertilisation event, leading to the formation of the embryo and the endosperm. Though only the embryo contributes to the next generation, control of endosperm proliferation, as well as the timing of its cellularisation are crucial for embryo viability. LÄS MER