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Alignment of QRT3 with sequences of polygalacturonases. A, Tap2g (GenBank accession no. U70480) was isolated from the abscission zone of tomato (Lycopersicon esculentum). B, PGase (GenBank accession no. X76735) was from peach. C, CRYJ2 was from Japanese cedar (Cryptomeria japonica). D, QRT3. E, Consensus sequence.
