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A beta-D-xylosidase-like gene is expressed during fruit ripening in Japanese pear (Pyrus pyrifolia Nakai)
- Itai, A., Yoshida, K., Tanabe, K., Tamura, F.
- Journal of experimental botany 1999 v.50 no.335 pp. 877-878
- Pyrus pyrifolia, xylan 1,4-beta-xylosidase, genes, gene expression, ripening, complementary DNA, amino acid sequences, nucleotide sequences, color, senescence
- To elucidate the molecular basis of fruit ripening in Japanese pear (Pyrus pyrifolia), studies to identify genes up-regulated during ripening by differential display techniques and cDNA library screening were started. A cDNA clone, JPRXYL, encoding a polypeptide which shows high similarity to bacterialBeta-D-xylosidases was identified. Northern analysis showed that the transcripts of JPRXYL accumulated during fruit ripening, after harvest and also in yellowing old leaves. These results suggest that JPRXYL may be a senescence-related gene.