Journal of Experimental Botany, Vol. 51, No. 347, pp. 1163-1166,
June 2000
© 2000 Oxford University Press
Short Communication Papers |
Isolation of cDNA clones corresponding to genes expressed during fruit ripening in Japanese pear (Pyrus pyrifolia Nakai): involvement of the ethylene signal transduction pathway in their expression
Laboratory of Horticultural Science, Faculty of Agriculture, Tottori University, Tottori 6808553, Japan
Abstract
Thirty cDNA clones of genes corresponding to mRNAs up-regulated during fruit ripening of Japanese pear (Pyrus pyrifolia Nakai cv. Kikusui) were obtained by differential screening of a ripe fruit cDNA library. All of these cDNAs were sequenced and gathered into 11 non-redundant groups after database searches. These clones represented genes associated with stress responses, protein catabolism or pathogenesis. The accumulation of transcripts of 3 out of 11 genes was inhibited by 1-methylcyclopropene (MCP), an inhibitor of ethylene action.
Key words: Japanese pear, Pyrus pyrifolia, fruit ripening, differential screening, 1-methylcyclopropene (MCP).
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