Fig. 3. Southern blot for Mtx^R GH96-3700 BC₁F₁ individuals from the cosegregation analysis. DNA was restricted with XbaI and hybridized with a N specific probe. Positions of DNA size markers are given to the left of the panel. Lanes 1 and 2, untransformed TMV^S check genotypes Petite Havana and NC152-dhfr; Lanes 3 through 12, 10 different BC₁F₁ individuals. Comparative results from the TMV test and PCR assay are provided at the top of the panel.

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