Sökning: "telomere evolution"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden telomere evolution.

  1. 1. What modulates telomere dynamics? : Inheritance, developmental effects, and physiological challenges

    Författare :Ye Xiong; MEMEG; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Telomere; Telomere dynamics; Telomere length; telomere inheritance; Zebra finch; Immune challenge; Heritability; Taenopygia guttata; Physiological parameter;

    Sammanfattning : Telomeres are the conservative sequence repeats located at the end of linear chromosomes that have been the focus of intensive research across many disciplines over the last four decades. They function as a cap to protect the chromosome ends from fusion to other chromosomes and to prevent chromosome degradation. LÄS MER

  3. 2. Functional Studies of Telomere-Binding Proteins in Saccharomyces castellii

    Författare :Jenny Rhodin; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Rap1; DNA-binding domain; telomere evolution; Cdc13; telomerase; single-stranded overhang; telomere; yeast; Naumovia castellii; Saccharomyces castellii;

    Sammanfattning : Telomeres are the ends of linear eukaryotic chromosomes. The telomeres are essential for solving the end replication problem and they stabilize the genome by protection from degradation. The telomeres also protect the chromosomal ends from by being recognized as DNA breaks by the repair machinery, which could lead to end-to-end fusions. LÄS MER

  4. 3. Telomeres in ecology and evolution: Hypotheses and connections between telomere length, infections and life history trade-offs

    Författare :David Gomez Blanco; MEMEG; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; telomeres; life history; telomere elongation; telomere shortening; early-life telomere length; critical threshold; malaria infection; great reed warbler; Acrocephalus arundinaceus;

    Sammanfattning : Studying life history strategies is crucial for understanding the diversity among organisms. The trade-offs in traits related to survival, self-maintenance and reproduction play an important role in the variation of life histories and can be adjusted in response to environmental and physiological factors. LÄS MER

  5. 4. On urbanisation and birds : Insights from a molecular and physiological perspective

    Författare :Pablo Salmon; Evolutionär ekologi; []
    Nyckelord :Air Pollution; Antioxidants; Birds; great tit Parus major; Local adaptation; Nitrogen oxides; Oxidative stress; Parallel evolution; Survival; Telomere dynamics; Telomeres; Urbanisation;

    Sammanfattning : Urbanisation of natural habitats is rapidly intensifying and poses a potential global threat for wildlife. Thus, it is important to explore its impact on wildlife in order to understand the present and future threats and how resilient organisms are to them. LÄS MER

  7. 5. Tomorrow is yesterday: early-life conditions shape ectotherm life histories

    Författare :Alexander Hansson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; life history; ectotherm; temperature; development; sex; telomere; senescence;

    Sammanfattning : Life history theory seeks to explain the overwhelming diversity of resource allocation strategies in nature by exploring how evolutionary forces optimise survival and reproduction within an organism’s environment. Central to this theory is that resources are finite, and thus increased investment into one trait may reduce resources available for another trait. LÄS MER