Essays about: "fst"

Showing result 16 - 20 of 20 essays containing the word fst.

  1. 16. Has modern Swedish forestry affected genetic diversity in Norway spruce stands?

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Helena Dahlberg; [2015]
    Keywords : Picea abies; genetic differentiation; age groups; nuclear microsatellites; forestry;

    Abstract : Norway spruce is one of two dominating species in Swedish forestry and the most economically important tree species in Sweden. In order to preserve the ability to adapt to a changing environment and to keep populations healthy, genetic diversity has to be preserved. READ MORE

  3. 17. The effects on language and curriculum of flight safety training used in helicopter emergency medical service after implementing a safety management system

    University essay from Lunds universitet/Avdelningen för Riskhantering och Samhällssäkerhet

    Author : Ralf Molander; [2014]
    Keywords : FLMU05; Technology and Engineering;

    Abstract : The trend in contemporary aviation is to enhance safety by implementing a Safety Management System (SMS). This trend has also become a part of the medical rotary industry. READ MORE

  4. 18. Analysis of Selection and Genetic Drift in a Dioecious Plant : Spatial Genetic Structure and Selection in Phenotypic Traits in a Young Island Population of Silene dioica

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Bea Angelica Andersson; [2014]
    Keywords : selection; genetic drift; quantitative trait; FST; PST; drift; evolution; founder event; gene flow; Silene dioica; dioecious; substructure; subpopulation; phenotypic trait; pollinator preference; Skeppsvik; Sweden; succession;

    Abstract : Selection and genetic drift are often competing forces in shaping genetic structure in populations. Genetic drift will often effectively cancel out the effect of selection when population sizes are small, such as in colonizing island populations. READ MORE

  5. 19. Whole genome resequencing of Heliconius butterflies revolutionizes our view of the level of admixture between species

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Dmytro Kryvokhyzha; [2014]
    Keywords : Heliconius; butterflies; genome; resequencing; admixture; gene flow; sympatric; fst; islands of speciation; phylogeny;

    Abstract : The theory of "genomic islands of speciation" has been extensively debated during the last decade. This thesis not only supports this theory, but provides evidence that challenges previous beliefs on the level of admixture between species. The recently published Heliconius melpomene genome project reported apparent genomic paraphyly of H. READ MORE

  6. 20. Microsatellite marker-based genetic diversity analysis and developing synthetic varieties in Alfalfa (Medicago sativa L.)

    University essay from SLU/Plant Breeding and Biotechnology (until 121231)

    Author : Maksatbek Amanov; [2012]
    Keywords : Alfalfa; genetic diversity; Kyrgyzstan; microsatellite; SSR; synthetic variety;

    Abstract : Cultivated alfalfa (Medicago sativa L.) is an allogamous autotetraploid species with 2n = 4x = 32 chromosomes. Alfalfa is the most cultivated forage legume in the world mainly due to its wide adaptation to diverse environmental conditions and efficient nitrogen fixation ability. Kyrgyzstan is among the major alfalfa producing countries. READ MORE