Journal of Experimental Botany, Vol. 54, No. 393, pp. 2775-2776,
December 1, 2003
© 2003 Oxford University Press
Characterization of a novel tomato EIN3-like gene (LeEIL4)
Received 1 May 2003; Accepted 19 September 2003
1 Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan
2 Laboratory of Postharvest Agriculture, Faculty of Agriculture, Okayama University, Tsushima, Okayama 700-8530, Japan
* To whom correspondence should be addressed. Fax: +81 86 251 8338. E-mail: ykubo{at}cc.okayama-u.ac.jp
A novel cDNA clone encoding a putative EIN3-like protein (LeEIL4) was identified from ripening tomato (Lycopersicon esculentum) fruit. The predicted amino acid sequence contained conserved domains of EIN3-like proteins in the N-terminal half. In phylogenetic analysis, LeEIL4 was classified into the cluster consisting of EIN3 and EIN3-like proteins known to be involved in ethylene signal transduction. LeEIL4 transcripts accumulated in all tissues examined, with higher levels in ripening fruit.
Key words: EIL, EIN3, ethylene, signal transduction, tomato.
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