General information

Mutant name arr3 arr4 arr5 arr6 arr8 arr9
Mutant/Transgenic plant mutant
Ecotype Col-0
Mutagenesis type T-DNA insertion_knock out
Dominant/Recessive/Semi-dominant recessive
PMID 14973166
CommentNo comment

Mutated genes

Locus name Alias Hormone Mutated site Paper description
AT1G59940 ARR3 cytokinin hextuple mutant Type A response regulator highly similar to bacterial two-component response regulators. Rapidly induced by cytokinin. Involved in red-light signaling. Acts redundantly with ARR4 in the control of circadian period in a cytokinin-independent manner
AT2G41310 ARR8,ATRR3 cytokinin hextuple mutant Encodes an A- type response Regulator that is primarily expressed in the root and is involved in cytokinin-mediated signalling
AT3G57040 ARR9,ATRR4 cytokinin hextuple mutant response regulator ARR9, A two-component response regulator-like protein with a receiver domain with a conserved aspartate residue and a possible phosphorylation site and at the N-terminal half. Appears to interact with histidine kinase like genes ATHP3 and ATHP2
AT5G62920 ARR6 cytokinin hextuple mutant Encodes a Type-A response regulator that is responsive to cytokinin treatment. Its C-ter domain is very short in comparison to other Arabidopsis ARRs
AT1G10470 ARR4 cytokinin T-DNA insertion Encodes a two-component response regulator. Acts redundantly with ARR3 in the control of circadian period in a cytokinin-independent manner
AT3G48100 ARR5 cytokinin T-DNA insertion Encodes a transcription repressor that mediates a negative feedback loop in cytokinin signalling. ARR5 expression is upregulated by Class I KNOX genes

Phenotype information

Organ AttributeNo hormone
Root Primary rootshort