COI1: An Arabidopsis Gene Required for Jasmonate-Regulated Defense and Fertility
Dao-Xin Xie,
Bart F. Feys,
*
Sarah James,
Manuela Nieto-Rostro,
John G. Turner
The coi1 mutation defines an Arabidopsis gene
required for response to jasmonates, which regulate defense against
insects and pathogens, wound healing, and pollen fertility. The
wild-type allele, COI1, was mapped to a 90-kilobase genomic
fragment and located by complementation of coi1-1 mutants.
The predicted amino acid sequence of the COI1 protein contains 16 leucine-rich repeats and an F-box motif. It has similarity to the F-box
proteins Arabidopsis TIR1, human Skp2, and yeast Grr1, which
appear to function by targeting repressor proteins for removal by
ubiquitination.
School of Biological Sciences, University of East Anglia, Norwich
NR4 7TJ, UK.
*
Present address: Sainsbury Laboratory, John Innes Centre,
Norwich, UK.
Present address: Biological Sciences, Wye College, Wye,
Ashford, Kent, UK.
To whom correspondence should be addressed.