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Hev b 7 Northern blot. Total RNA (20 μg) from potato, Hevea leaf or latex was separated in 1.2% agarose/formaldehyde gel and transferred to nylon membrane. The RNA was UV cross-linked to the membrane and probed for the Hev b 7 gene product. Top panel represents the ethidium bromide-stained gel and the bottom panel represents the blot probed with Hev b 7. The Hevea P5xP7 cDNA clone was used as a probe for Hev b 7.
