Sökning: "color polymorphism"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden color polymorphism.

1. 1. A functional genomic investigation of an alternative life history strategy : The Alba polymorphism in Colias croceus

   Författare :Alyssa Woronik; Christopher Wheat; Antonia Monteiro; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; alternative life history strategy; butterfly wing color; Alba; Colias; color polymorphism; dimorphism; life history traits; physiology; lipidomics; genomics; pooled sequencing; phylogenomics; RNA-Seq; Pool-Seq; populationsgenetik; Population Genetics;

   Sammanfattning : Life history traits affect the timing and pattern of maturation, reproduction, and survival during an organism’s lifecycle and are the major components influencing Darwinian fitness. Co-evolved patterns of these traits are known as life history strategies (LHS) and variation occurs between individuals, populations, and species. LÄS MER

3. 2. Causes and consequences of niche differentiation between color morphs of pygmy grasshoppers

   Författare :Einat Karpestam; Anders Forsman; Birgitta Tullberg; Linnéuniversitetet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; color polymorphism; visual predators; Tetrix subulata; differential habitat use; niche; thermoregulation; feeding preferences; stable isotopes; Evolutionary Biology; Evolutionsbiologi;

   Sammanfattning : In this thesis, I used the color polymorphic pygmy grasshopper, Tetrix subulata, as a model system in order to investigate the degree of niche differentiation between alternative color morphs that are present within a single population. First, I hypothesized that individuals belonging to different color morphs differ in their innate food preference due to somewhat dissimilar physiology, and in their actual food consumption due in part to differential habitat use. LÄS MER

4. 3. Island biogeography and population divergence in the Skyros wall lizard

   Författare :Anna Runemark; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Podarcis gaigeae; inbreeding; predation release; polymorphism; island gigantism; the island rule; genetic drift; sexual selection; natural selection; island biology; Evolution;

   Sammanfattning : Islands are cradles for new biodiversity and provide natural laboratories for the study of population divergence. In my thesis, I investigated the role of different evolutionary processes in the population divergence in the Skyros wall lizard (Podarcis gaigeae), a species where islet populations have strongly diverged morphologies. LÄS MER

5. 4. Large-Scale Genotyping for Analysis of the Type I Interferon System in Autoimmune Diseases

   Författare :Snaevar Sigurdsson; Ann-Christine Syvänen; Timothy Behrens; Uppsala universitet; []
   Nyckelord :Molecular medicine; Minisequencing; SNP; Microarray; Polymorphism; Mitochondria; Systemic Lupus Erythematosus; Rheumatoid Arthritis; Association study; Type I interferon; Genotyping; Molekylärmedicin;

   Sammanfattning : Single nucleotide polymorphisms (SNPs) are the most common form of genetic variation. We developed a novel multiplexed method for SNP genotyping based on four-color fluorophore tag-microarray minisequencing. This method allows simultaneous genotyping of 80 samples and up to 200 SNPs in any allele combination. LÄS MER

7. 5. Using Minisequencing Technology for Analysing Genetic Variation in DNA and RNA

   Författare :Mona Fredriksson; Ann-Christine Syvänen; Aarno Palotie; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Molecular medicine; microarray; minisequencing; molecular medicine; single nucleotide polymorphism; stem cell transplantation; whole genome amplification; allelic imbalance; alternative splicing; Molekylärmedicin; Molecular medicine genetics and pathology ; Molekylär medicin genetik och patologi ;

   Sammanfattning : In this thesis, the four-color fluorescence tag-microarray minisequencing system pioneered by our group was further developed and applied for analysing genetic variation in human DNA and RNA. A SNP marker panel representing different chromosomal regions was established and used for identification of informative SNP markers for monitoring chimerism after stem cell transplantation (SCT). LÄS MER