Sökning: "Wheat"

Visar resultat 6 - 10 av 272 avhandlingar innehållade ordet Wheat.

  1. 6. Geographic variation in life cycles : Local adaptation and ecological genetics in a temperate butterfly

    Författare :Olle Lindestad; Karl Gotthard; Sören Nylin; Christopher W Wheat; Greg Ragland; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; voltinism; local adaptation; insect; life cycle; seasonality; genomics; life history; zoologisk ekologi; Animal Ecology;

    Sammanfattning : Conditions in nature change with the seasons, necessitating seasonal adaptations that synchronize the life cycles of organisms with their surroundings. Such regulatory adaptations must vary between populations to track local variation in climate and seasonality; this local adaptation is facilitated by locally specific seasonal cues, but may be hampered by gene flow and genetic history. LÄS MER

  3. 7. Advances in studying the role of genetic divergence and recombination in adaptation in non-model species

    Författare :Ramprasad Neethiraj; Christopher Wheat; Sören Nylin; Mathieu Joron; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Recombination; Genetic divergence; Lepidoptera; Genetic variation; Genetic diversity; Holocentric chromosomes; cis-regulatory variation; Allele-specific expression; populationsgenetik; Population Genetics;

    Sammanfattning : Understanding the role of genetic divergence and recombination in adaptation is crucial to understanding the evolutionary potential of species since they can directly affect the levels of genetic variation present within populations or species. Genetic variation in the functional parts of the genome such as exons or regulatory regions is the raw material for evolution, because natural selection can only operate on phenotypic variation already present in the population. LÄS MER

  4. 8. Understanding evolutionary novelty through female-limited polymorphisms

    Författare :Kalle Tunström; Christopher W. Wheat; Rhonda R. Snook; Patrícia Beldade; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; populationsgenetik; Population Genetics;

    Sammanfattning : Understanding how novel traits evolve is a central question in evolutionary biology. However, unraveling the complex genetic and developmental mechanisms underlying trait innovation can be challenging, especially when the trait evolved a long time ago. LÄS MER

  5. 9. Development and Application of Genomic Resources in Non-model Bird Species

    Författare :Biao Wang; Jacob Höglund; Christopher Wheat; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; genome; transcriptome; next generation sequencing; non-model species; bioinformatics; reference guided assembly; RNA-Seq; comparative genomics; gene expression; major histocompatibility complex; single nucleotide polymorphism; microsatellite; Biologi; Biology;

    Sammanfattning : Understanding the genetic basis of biological processes is a fundamental component of modern ecology and evolutionary biology studies. With the recent advent of next generation sequencing (NGS) technologies, it is now possible to perform large genome and transcriptome projects for ecologically important non-model species. LÄS MER

  7. 10. Gene regulatory evolution in flycatchers: statistical approaches for the analysis of allele-specific expression

    Författare :Mi Wang; Hans Ellegren; Christopher Wheat; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ASE; gene expression evolution; bayesian; RPASE; flycatcher.; Biology with specialization in Evolutionary Genetics; Biologi med inriktning mot evolutionär genetik;

    Sammanfattning : Understanding the molecular mechanisms underlying evolutionary changes in gene expression is a major research topic in biology. While a powerful approach to study this is the analysis of allele-specific expression (ASE), most of previously published methods can only be applied to lab organisms. LÄS MER