General information

Mutant name abi3-4
Mutant/Transgenic plant mutant
Ecotype Ler
Mutagenesis type EMS
Dominant/Recessive/Semi-dominant recessive
PMID 1359917
CommentPleiotropic defects in seed maturation; vegetative effects on plastid differentiation;ABA reduced the growth inhibition of mutants

Mutated genes

Locus name Alias Hormone Mutated site Paper description
AT3G24650 ABI3 abscisic acid Nucleotide C1654 is replaced by a T,which converts the CAA codon encoding Gln417 into a TAA premature stop codon. Homologous to the maize transcription factor Viviparous-1. Full length ABI3 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 ABI3 requires the B3 DNA-binding domain and an activation domain

Phenotype information

Organ AttributeNo hormoneabscisic acid
Silique/Seed Germination rate-increased
Loss of seed dormancyyes-