Search for dissertations about: "pigmentation"

Showing result 1 - 5 of 44 swedish dissertations containing the word pigmentation.

2. 1. Dissecting Phenotypic Variation in Pigmentation using Forward and Reverse Genetics

   Author : Anders R Hellström; Uppsala universitet; []
   Keywords : Pigmentation; eumelanin; pheomelanin; knockout; Silver; SLC45A2; PMEL17; Sex-linked barring; CDKN2A; CDKN2B; ARF; chicken; Japanese quail; MEDICINE; MEDICIN; Molekylär genetik; Molecular Genetics;

   Abstract : Coat color and patterning phenotypes have been extensively studied as a model for advancing our understanding of the relationship between genetic and phenotypic variation. In this thesis, genes of relevance for pigment cell biology were investigated. The dissertation is divided in two parts. READ MORE

4. 2. The Genetics of Speciation and Colouration in Carrion and Hooded Crows

   Author : Jelmer Poelstra; Jochen Wolf; Hans Ellegren; Chris Jiggins; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; evolutionary genetics; genomics; birds; next-generation sequencing; pigmentation; pigmentation genetics; eumelanin; social selection; gene expression; population genomics; Biology with specialization in Evolutionary Genetics; Biologi med inriktning mot evolutionär genetik;

   Abstract : A fundamental goal in biological research is to gain an understanding of the evolutionary processes and genetic elements that drive speciation. Genes responsible for reproductive isolation in young divergent lineages are particularly poorly known. In this thesis, the speciation genetics of carrion (Corvus (corone) corone) and hooded (C. READ MORE

5. 3. Vitiligo and Piebaldism : Treatmant of Leucoderma by Transplantation of autologous melanocytes

   Author : Mats J. Olsson; Hugh Zachariae; Uppsala universitet; []
   Keywords : Medical sciences; leucoderma; leukoderma; vitiligo; piebaldism; melanocytes; pigmentation; cell culturing; serum-free; transplantation; surgery; autoimmune disease; MEDICIN OCH VÅRD; MEDICINE; MEDICIN; Dermatology and Venerology; dermatologi och venereologi;

   Abstract : Background: Vitiligo and piebaldism are disorders in which the affected skin lack epidermal melanocytes. Vitiligo is acquired and can clinically be subgrouped, but the aetiology is still not fully understood. The most common type, generalized vitiligo (vitiligo vulgaris) has autoimmune involvement and affects about 1. READ MORE

6. 4. Effects of enhanced ultraviolet-B radiation on subarctic ecosystems

   Author : Carola Gehrke; Biologiska institutionen; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; pigmentation; photosynthesis; dark respiration; shoot morphology; shoot growth; phanerogams ; species composition cryptogams; productivity; decomposition; dwarf shrubs; bryophytes; peatland ecosystem; heath ecosystem; UV-B; ozone depletion; Plant ecology; Växtekologi;

   Abstract : Biologically harmful ultraviolet-B radiation (UV-B, 280-320 nm) is increasing at the Earth´s surface owing to stratospheric ozone depletion. This is of global concern due to potential impacts of enhanced UV-B radiation on the biosphere. READ MORE

7. 5. Monogenic Traits Associated with Structural Variants in Chicken and Horse : Allelic and Phenotypic Diversity of Visually Appealing Traits

   Author : Freyja Imsland; Leif Andersson; Gabriella Lindgren; Kerstin Lindblad-Toh; Eiríkur Steingrímsson; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Structural variation; Pigmentation; Domestication; Equids; MNR2; CCDC108; STX17; TBX3; Grey; Dun; non-dun; Rose-comb; Chicken; Genetic mapping; Phenotyping; Molekylär genetik; Molecular Genetics;

   Abstract : Domestic animals have rich phenotypic diversity that can be explored to advance our understanding of the relationship between molecular genetics and phenotypic variation. Since the advent of second generation sequencing, it has become easier to identify structural variants and associate them with phenotypic outcomes. READ MORE