An ethylene-inducible component of signal transduction encoded by never-ripe.
The ripening-impaired tomato mutant Never-ripe (Nr) is insensitive to the plant hormone ethylene. The gene that cosegregates with the Nr locus encodes a protein with homology to the Arabidopsis ethylene receptor ETR1 but is lacking the response regulator domain found in ETR1 and related prokaryotic two-component signal transducers. A single amino acid change in the sensor domain confers ethylene insensitivity when expressed in transgenic tomato plants. Modulation of NR gene expression during fruit ripening controls response to the hormone ethylene.
Monsanto Company, Chesterfield, MO 63198, USA.
J Q
JQ
Wilkinson
M B
MB
Lanahan
H C
HC
Yen
J J
JJ
Giovannoni
H J
HJ
Klee
D000595:Amino Acid Sequence; D017360:Arabidopsis / Q000235:genetics; D001483:Base Sequence; D017931:DNA Primers; D005030:Ethylenes / Q000378:metabolism*; D017343:Genes, Plant; D018551:Solanum lycopersicum / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism; D008969:Molecular Sequence Data; D009154:Mutation; D010940:Plant Proteins / Q000235:genetics* / Q000378:metabolism; D011956:Receptors, Cell Surface; D017386:Sequence Homology, Amino Acid; D015398:Signal Transduction
D017931:DNA Primers; D005030:Ethylenes; C097149:NEVER-RIPE protein, Lycopersicon esculentum; D010940:Plant Proteins; D011956:Receptors, Cell Surface; C083750:ethylene receptors, plant; C036216:ethylene