Search for dissertations about: "functional redundancy"

Showing result 16 - 20 of 44 swedish dissertations containing the words functional redundancy.

  2. 16. Effects of Selection and Demography on DNA Polymorphism in Black Mustard (Brassica nigra)

    Author : Per Sjödin; Martin Lascoux; Ulf Lagercrantz; Mikkel Schierup; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Molecular genetics; population genetics; Genetik; Genetics; Genetik;

    Abstract : The evolution of three genes from the CONSTANS-LIKE gene family is studied in Brassica nigra. We use a combination of population genetic and phylogenetic techniques in order to assess the relative importance of selection and demography on the pattern of DNA variation. READ MORE

  4. 17. The response of model food webs to species loss : secondary extinctions and relaxation times

    Author : Charlotte Borrvall; Richard Law; Linköpings universitet; []
    Keywords : ;

    Abstract : Current destruction and fragmentation of natural habitats is predicted to cause great future losses in biodiversity (Pimm et al. 1995; Hughes et al. 1997; Sala et al. 2000). READ MORE

  5. 18. Microbial Communities in Boreal Peatlands : Responses to Climate Change and Atmospheric Nitrogen and Sulfur Depositions

    Author : Magalí Martí Genero; Bo Svensson; Åsa Danielsson; Torben Christensen; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Microbial communities; methanogens; plant communities; peatland; temperature; nitrogen; long-term; field experiment; high-throughput sequencing; Microbiella samhällen; metanogener; växtsamhällen; myrar; torv; temperatur; kväve; långtid; fältexperiment; high-throughput-sekvensering;

    Abstract : Myrmarker har en stor roll i regleringen av den globala kolbalansen och koncentrationerna av koldioxid och metan i atmosfären, vilket gör dem till speciellt viktiga ekosystem ur ett klimatförandringsperspektiv. Förändringar av myrmarker genom naturlig utveckling eller antropogen påverkan kan därför få långtgående störningar av myrars klimatreglerande funktion. READ MORE

  6. 19. Synthesis of glucuronoxylan in higher and lower plants : is there conservation of the enzymatic machinery?

    Author : Emma Hörnblad; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : The hemicellulose glucuronoxylan (GX) is the second most abundant polysaccharide after cellulose in the secondary cell walls of angiosperms and contributes significantly to the properties of wood as raw materials. Despite this, very little is known about the biosynthesis of hemicellulose. READ MORE

  7. 20. Immunoglobulin gene usage and affinity maturation in antiviral antibodies

    Author : Pradeepa Pushparaj; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : The ability of antibodies to block infections makes them highly relevant for successful vaccine development. Through the papers described in this thesis, I attempt to characterize the functional and genetic aspects of antiviral antibodies induced by infection and vaccination. READ MORE