General information

Mutant name fus3-3
Mutant/Transgenic plant mutant
Ecotype Col-0
Mutagenesis type EMS
Dominant/Recessive/Semi-dominant recessive
PMID 0012244265
CommentInvolved in the control foliar organ identity in Arabidopsis by regulating the synthesis of two hormones, abscisic acid and gibberellin.FUS3 together with LEC1 positively regulate the abundance of the ABI3 protein in the seed.

Mutated genes

Locus name Alias Hormone Mutated site Paper description
AT3G26790 FUS3 abscisic acid A replaced G at the 5`end of the third intron. Transcriotional factor with high similarity to the B3 region of the VP1/ABI3-like proteins. Full length FUS3 protein binds to the highly conserved RY motif [DNA motif CATGCA(TG)],present in many seed-specific promoters, and the B3 domains of this transcription factor is necessary for the specific interaction with the RY element.Transcriptional activity of FUS3 requires the B3 DNA-binding domain and an activation domain.

Phenotype information

Organ AttributeNo hormone
Cotyledon/Leaf othercotyledons have trichomes and have both cotyledon and leaf characteristics
Embryo otheraccumulation of anthocyanin in developing embryos
Silique/Seed otherseeds desiccation sensitive,seeds germinate and leaf primordia appear before desiccation;dry seed shrunken and does not germinate.