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  • Characterization of isozyme variation in walnut (Juglans regia L.)
    Solar, Anita ...
    Four leaf enzymes malate dehydrogenase (MDH), 6-phosphogluconate dehydrogenase (6PGD), peroxidase (PX) and aspartate aminotransferase (AAT) of 17 walnut cultivars and two pollen enzymes malate ... dehydrogenase (MDH) and 6- phosphogluconate dehydrogenase (6PGD) of 15 walnut cultivars were analysed using horizontal starch gel electrophoresis. Walnut cultivars of different origin exhibited different numbers of electrophoretic bands and also different relative mobility. Different activity levels and phenotypic groups were detected in studied enzyme systems. Pollen enzymes revealed higher variability than enzymes extracted from the leaves. 15 walnut cultivars were classified into 10 malate dehydrogenase phenotypic groups and 14 6-phosphogluconate dehydrogenase phenotypic groups based on pollen analyses. 17 cultivars were classified into 9 peroxidase phenotypic groups and 7 6-phosphogluconate dehydrogenase phenotypic groups based on analyses of leaves. All of the 15 walnut cultivars could be identified and distinguished with electrophoretic analyses of MHD and 6PGD from the pollen while only 10 cultivars were distinguishable with analyses of 6PGD and PRX from the leaves. No variability useful for cultivar identification was observed in MHD and AAT from the leaves.
    Vir: Progress in temperate fruit breeding : proceedings of the Eucarpia Fruit Breeding Section Meeting held at Wädenswil/Einsiedeln, Switzerland from august 30 to september 3, 1993 (Str. 313-320)
    Vrsta gradiva - prispevek na konferenci ; neleposlovje za odrasle
    Leto - 1994
    Jezik - angleški
    COBISS.SI-ID - 1646713

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