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Hybridization of clones StGA20ox1, StGA20ox2, and StGA20ox3 to a Southern blot of S. tuberosum subsp. andigena genomic DNA digested with EcoRI and HindIII. Ten micrograms of genomic DNA was loaded per lane. The HindII-XhoI fragments corresponding to the 3′-ends of the clones were used as probes. Molecular-mass markers are shown on the left (in kb).
