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Southern-hybridization analysis of SPS genes in diploid, tetraploid, and hexaploid species of wheat. Autoradiograms of (A) Aegilops tauschii (DD), (B) durum wheat (AABB), and (C) bread wheat (AABBDD) genomic DNA (20 μg) digested with BglII, EcoRI, or XhoI and hybridized with SPS gene family specific probes.
