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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 71 to 80 of 204 (0.016 seconds)| 71 |
Inference of Population Stratification Using Population Genetic DataLeslie, Stephen January 2008 (has links)
No description available.
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Local adaptation and adaptive divergence in a hybrid species complex in SenecioRoss, Rebecca Isabel Charlotte January 2010 (has links)
No description available.
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Neural network structure in an exhaustive RNA genotype-phenotype mapRendel, Mark January 2008 (has links)
No description available.
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Ethical challenges in collecting, using and sharing ethnicity-related data in genomics research in Africa : the case of the malariaGEN consortiumVries, Jantina de January 2010 (has links)
No description available.
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Statistical methods for phasing haplotypes and inputing genotypes in large population genetic datasetsHowie, Bryan January 2009 (has links)
No description available.
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Population genetic markers in biomonitoring programmes : A case study of flatfish around the British IslesTysklind, Niklas January 2009 (has links)
No description available.
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Investigating the relative influence of genetic dritt and natural selection in shaping patterns of population structure in Delphmids (Delphinus delphis; Tursiops spp.)Viola de Moura, Andre Eurico January 2011 (has links)
No description available.
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Biological individuality and the levels of selectionClarke, Ellen January 2010 (has links)
No description available.
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Sequences, structures and biological functions of molecular evolutionPethica, Ralph Brian January 2011 (has links)
No description available.
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Inbreeding avoidance and the genetic basis of inbreeding depression in DrosophilaFerreira, Álvaro Gil Araújo January 2007 (has links)
This dissertation describes a study of the role of sexual selection in inbreeding avoidance and an extensive analysis of the genetics basis of inbreeding depression using species of the fruit fly <i>Drosophila</i> as model organisms. Using behaviour experiments and molecular genetic techniques I investigated the role of both female mate choice and polyandry in inbreeding avoidance. My results show that in the four <i>Drosophila</i> species analysed (<i>D. melanogaster, D. simulans, D. subobscura</i> and <i>D. littoralis</i>) female flies are not able to avoid inbreeding through mate choice. However, when polyandry was investigated in <i>D. melanogaster</i> and in <i>D. littoralis</i> I found that post-copulatory mechanisms can contribute to inbreeding avoidance. Specifically, females sometimes appear preferentially to use sperm from an unrelated rather than related partner. However, the pattern is complicated and the exact outcome appears to depend on the species, the remating frequency and on male mating order. Concerning inbreeding depression, two main genetic mechanisms have been invoked to explain the deleterious effects associated with inbreeding, one based on the exposure of deleterious recessive alleles and the other on heterozygote advantage. In order to investigate the relative importance of these two mechanisms, I analysed the relationship between heterozygosity at microsatellite markers and fitness in <i>D. melanogaster, </i>comparing inbred and outbred crosses under benign and stressed conditions. It was found that although the effects of deleterious recessive alleles have a significant effect, heterozygote advantage also plays an important role on inbreeding depression. Additionally, I show that the deleterious effects of inbreeding are at least partly environmental-specific.
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