Sökning: "ARABIDOPSIS"

Visar resultat 21 - 25 av 248 avhandlingar innehållade ordet ARABIDOPSIS.

  1. 21. Sequence evolution in a chromosomal region of Arabidopsis thaliana

    Författare :Jenny Hagenblad; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Växtgenetik; Plant genetics; flowering time; mapping; polymorphism; Linkage disequilibrium; Arabidopsis thaliana;

    Sammanfattning : Recently there has been a lot of interest in the use of liknage disequilibrium (LD) in genome wide scans for new genes, so called association mapping. Of crucial importance to a genome wide scan for associations between genetic markers and the trait of interest is the extent of LD, as it determines both how closely a trait can be mapped and also how many markers is needed to map it. LÄS MER

  3. 22. Ecology and evolution of local adaptation in Arabidopsis thaliana

    Författare :Giulia Zacchello; Jon Ågren; Xavier Picó; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis thaliana; germination time; natural populations; Near isogenic lines; reciprocal transplants; seed bank; seed dormancy; Biology with specialization in Ecological Botany; Biologi med inriktning mot ekologisk botanik;

    Sammanfattning : In this thesis, I investigate the ecological genetics of local adaptation in the annual herb Arabidopsis thaliana with the aim to identify key traits, agents of selection, and genomic regions contributing to adaptive differentiation. The thesis focuses on adaptive differentiation in timing of germination and seed dormancy between populations located close to the southern and northern range margins in Europe. LÄS MER

  4. 23. The chloroplast talks : Insights into the language of the chloroplast in Arabidopsis

    Författare :Peter Kindgren; Åsa Strand; Barry Pogson; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis thaliana; chloroplast; photosynthesis; retrograde communication; Mg-ProtoIX; oxidative stress; gene expression; Molecular biology; Molekylärbiologi; Physiological Botany; fysiologisk botanik;

    Sammanfattning : The chloroplast originates from an endosymbiotic event 1.5 billion years ago, when a free living photosynthetic bacteria was engulfed by a eukaryotic host. The chloroplastic genome has through evolution lost many genes to the nuclear genome of the host. LÄS MER

  5. 24. Significance of hydrolytic enzymes expressed during xylem cell death

    Författare :Benjamin Bollhöner; Hannele Tuominen; Moritz Nowack; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis; Populus; xylem cell death; metacaspase; fiber; lateral root emergence; molekylärbiologi; Molecular Biology; Physiological Botany; fysiologisk botanik; molecular cell biology; molekylär cellbiologi;

    Sammanfattning : Xylem is an inherent feature of all vascular plants and functions in water transport and mechanical support. In order to efficiently transport water, xylem cells are reinforced by secondary walls before they undergo programmed cell death and their cell contents are removed by autolysis to create a hollow tube. LÄS MER

  7. 25. Plasma Membrane Proteomics and Functional Characterization & Expression Profiling of Plant Aquaporins

    Författare :Erik Alexandersson; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Växtbiokemi; Plant biochemistry; phosphorylation; barley; GFP; GUS; quantitative real-time reverse transcriptase PCR; microarray; aquaporin; MIP; Arabidopsis; plasma membrane; proteomics;

    Sammanfattning : In order to identify integral and peripheral proteins associated with the plasma membrane (PM), highly purified Arabidopsis PMs were analyzed by mass spectrometry. In total, 238 putative PM proteins were identified, of which 114 were predicted to have transmembrane domains or to be PM-anchored. LÄS MER