Articles by Keyword: Genetic Identification

Search results for Genetic Identification

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  1. A preliminary study of allozyme differences amongst <em>Carcharhinus</em> sharks from the continental slope near Abidjan, Côte d'lvoire

    A preliminary study of allozyme differences amongst <em>Carcharhinus</em> sharks from the continental slope near Abidjan, Côte d'lvoire

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Genetic variability of fifty-five shark specimens from the genus Carcharhinus was analysed using 18 allozyme loci. Sixteen loci were polymorphic either within, or between, species. Levels of genetic polymorphism, as measured by observed heterozygosity values, ranged from 0.008 (±0.008) to...
  2. DNA barcoding of South Africa’s ornamental freshwater fish – are the names reliable?

    DNA barcoding of South Africa’s ornamental freshwater fish – are the names reliable?

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Trade in freshwater ornamental fish in South Africa is currently regulated by a ‘blacklist’ to prevent potentially invasive taxa from establishing in the country. Because its effective implementation requires accurate identification, the aim of the present study was to test...
  3. Molecular research on the systematically challenging smoothhound shark genus <em>Mustelus</em>: a synthesis of the past 30 years

    Molecular research on the systematically challenging smoothhound shark genus <em>Mustelus</em>: a synthesis of the past 30 years

    Item type: Journal Article • Journal: African Journal of Marine Science
    The species-rich genus Mustelus (smoothhounds) of the shark family Triakidae is one of the most bio-economically important groups of elasmobranchs in the world’s oceans. Despite the commercial value of Mustelus, the systematics of the group remains largely unresolved and there...
  4. Genetic Improvement of Timber Yield and Wood Quality in <em>Eucalyptus Grandis</em> (Hill) Maiden

    Item type: Journal Article • Journal: South African Forestry Journal
    Results of a partial diallel progeny test of Eucalyptus grandis assessed at ages 5, 36, 60 and 105 months are presented. Large genetic variations among full-sib families were found for all traits studied, e.g. the mean tree volume per family...
  5. Barley cultivar identification by acid Polyacrylamide gel electrophoresis of hordein proteins

    Barley cultivar identification by acid Polyacrylamide gel electrophoresis of hordein proteins

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Methods are described for the extraction and separation of hordein proteins of barley by acid Polyacrylamide gel electrophoresis as a means of identifying different cultivars. Experimental conditions for the extraction of the proteins from single kernels and from corresponding flour...
  6. Wheat cultivar identification by electrophoretic analysis of gliadin proteins

    Wheat cultivar identification by electrophoretic analysis of gliadin proteins

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Polyacrylamide gel electrophoresis of gliadin proteins in an acid medium was used to identify different spring wheat cultivars. Gliadins were extracted from single kernels or corresponding flour samples using different solvents. Gliadin electrophoretogram formulae using relative band mobilities and staining...
  7. Identification of tall fescue grass cultivars by sodium dodecyl sulphate and acid polyacrylamide gel electrophoresis

    Identification of tall fescue grass cultivars by sodium dodecyl sulphate and acid polyacrylamide gel electrophoresis

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Protein banding patterns of seed obtained by sodium dodecyl sulphate Polyacrylamide gel electrophoresis (SDS-PAGE) or acid Polyacrylamide gel electrophoresis (A-PAGE) were used to distinguish between different tall fescue (Festuca arundinacea Shreb.) grass cultivars. An electrophoretic formula was determined for each...
  8. Evaluering en kalibrering van CERES-Maize. 1. Nie-lineêre regressie om genetiese parameters te bepaal

    Evaluering en kalibrering van CERES-Maize. 1. Nie-lineêre regressie om genetiese parameters te bepaal

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Die genetiese parameters van die meeste plaaslike mielie cultivars wat as inset van CERES-Maize benodig word, is nog nie bepaal nie. Sodanige parameters kan met behulp van bestaande oesdata en fenologiese datums, uit veldproewe afgelei word. Programmatuur kan gebruik word...
  9. The genetic variability of malt quality and related characteristics in grain sorghum

    The genetic variability of malt quality and related characteristics in grain sorghum

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The inheritance of and relationships between diastatic power, seed texture, steep mass, malt mass, dry malt mass, rate of moisture uptake during malting and percentage moisture of malt were analysed by means of a factorial crossing design, which involved the...
  10. Analysis of the HMW glutenin subunit composition of wheat cultivare by SDS-PAGE

    Analysis of the HMW glutenin subunit composition of wheat cultivare by SDS-PAGE

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The composition of the high-molecular weight (HMW) glutenin subunits of 13 wheat cultivars grown in the Western Cape was determined using Polyacrylamide gel electrophoresis in the presence of sodium dodecyl sulphate (SDS-PAGE). The molecular weight of the different subunits was...