Differential regulation of the tomato ETR gene family throughout plant development
作者: Coralie C. LashbrookDenise M. TiemanHarry J. Klee
作者单位: 1Department of Horticultural Sciences, PO Box 110690, University of Florida, Gainesville, FL 32611–0690, USA
刊名: The Plant Journal, 1998, Vol.15 (2), pp.243-252
来源数据库: Wiley Journal
DOI: 10.1046/j.1365-313X.1998.00202.x
原始语种摘要: Summary(#br)Ethylene perception in plants is co‐ordinated by multiple hormone receptor candidates sharing sequence commonalties with prokaryotic environmental sensor proteins known as two‐component regulators. Two tomato homologs of the Arabidopsis ethylene receptor ETR1 were cloned from a root cDNA library. Both cDNAs, termed LeETR1 and LeETR2 , were highly homologous to ETR1 , exhibiting ∼ 90% deduced amino acid sequence similarity and 80% deduced amino acid sequence identity. LeETR1 and LeETR2 contained all the major structural elements of two‐component regulators, including the response regulator motif absent in LeETR3 , the gene encoding tomato NEVER RIPE ( NR ). Using RNase protection analysis, the mRNAs of LeETR1 , LeETR2 and NR were quantified in tissues engaged in key processes...
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