Articles

STUDIES ON GENETIC TRANSFORMATION OF APPLE

Article number
484_101
Pages
591 – 594
Language
Abstract
The genetic transformation procedure for apple has been optimised in order to introduce agronomically valuable genes.
Leaf explants of apple cultivars ‘Granny Smith’, ‘Prima’ and ‘Melrose’ were infected with two Agrobacterium tumefaciens strains, C58C1 and AGL1, carrying constructs with nptII marker and GUS reporter genes.
The effects of 5-azacytidine and acetosyringone on transient gene expression were detected when they were added to the bacterial medium during bacteria replication and co-cultivation in presence of arabinose and low pH. The frequency of transient gene expression appeared to be strongly influenced by bacterial constructs but not by genotype.
Putative transgenic plants, rooted on selective medium (100 mg/l Kanamycin) were obtained.
Five putative transformants from ‘Granny Smith’, two from ‘Prima’ and one from ‘Melrose’ have been selected.
The integration of transgenes was confirmed by the GUS histochemical test and PCR analyses.

Publication
Authors
A. S. Trifonova, A. I. Atanassov
Keywords
Malus pumila, Agrobacterium
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