Search for dissertations about: "Capsella"
Showing result 1 - 5 of 9 swedish dissertations containing the word Capsella.
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1. Cis-regulatory variation and divergence in Capsella
Abstract : Cis-regulatory changes in e.g. promoters or enhancers that affect the expression of a linked focal gene have long been thought to be important for adaptation. In this thesis, I investigate the selective importance and genomic correlates of cis-regulatory variation and divergence in the genus Capsella, using massively parallel sequencing data. READ MORE
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2. Evolutionary consequences of dominance at the Brassicaceae self-incompatibility locus
Abstract : Self-incompatibility (SI) is a genetic mechanism that allows plants to enforce outcrossing by rejecting self-pollen and pollen from close relatives. In the Brassicaceae, SI is sporophytic and controlled by the self-incompatibility locus (S-locus). READ MORE
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3. Demography and Polyploidy in Capsella
Abstract : Studies of demography and population structure give insight into important evolutionary processes such as speciation and diversification. In the present work I perform such studies in the genus Capsella, which has three species: C. grandiflora, an outcrossing diploid, C. rubella a selfing diploid, and C. READ MORE
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4. Genomic and phenotypic consequences of allopolyploidization in Capsella
Abstract : Allopolyploidization, the combination of whole-genome duplication (WGD) and interspecific hybridization, is a frequent and influential event in plant evolution. Allopolyploidization potentially affects both adaptation and diversification, yet the understanding of the consequences of allopolyploidy has been obscured by several issues. READ MORE
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5. Population genomic analyses of regulatory variation and selection in Brassicaceae species
Abstract : 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. READ MORE