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| Mutant name | arr3 arr4 arr5 arr6 arr8 arr9 |
| Mutant/Transgenic |
mutant |
| Ecotype |
Col-0 |
| Mutagenesis type |
T-DNA insertion_knock out |
| (Semi-)Dominant/Recessive |
recessive |
| Description |
Mutant exhibits delayed leaf senescence phenotype. |
| References |
1: Salome PA, To JP, Kieber JJ, McClung CRArabidopsis response regulators ARR3 and ARR4 play cytokinin-independent roles in the control of circadian period.Plant Cell 2006 Jan;18(1):55-69
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| Mutated Gene 1 | Locus name |
AT1G59940 | | Alias |
ARR3 | | Organism |
Arabidopsis thaliana | | Description |
Type A response regulator highly similar to bacterial two-component response regulators. |
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| Mutated Gene 2 | Locus name |
AT1G10470 | | Alias |
ARR4 | | Organism |
Arabidopsis thaliana | | Description |
Downregulated in senescent leaves.Encodes a two-component response regulator. Acts redundantly with ARR3 in the control of circadian period in a cytokinin-independent manner. |
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| Mutated Gene 3 | Locus name |
AT3G48100 | | Alias |
ARR5 | | Organism |
Arabidopsis thaliana | | Description |
Encodes a transcription repressor that mediates a negative feedback loop in cytokinin signalling. ARR5 expression is upregulated by Class I KNOX genes. Arr5 protein is stabilized by cytokinin in a two-component phosphorelay.Downregulated in senescent leaves. |
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| Mutated Gene 4 | Locus name |
AT5G62920 | | Alias |
ARR6 | | Organism |
Arabidopsis thaliana | | Description |
Encodes a Type-A response regulator that is responsive to cytokinin treatment.Downregulated in senescent leaves. |
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| Mutated Gene 5 | Locus name |
AT2G41310 | | Alias |
ARR8 | | Organism |
Arabidopsis thaliana | | Description |
Encodes an A- type response Regulator that is primarily expressed in the root and is involved in cytokinin-mediated signalling. |
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| Mutated Gene 6 | Locus name |
AT3G57040 | | Alias |
ARR9 | | Organism |
Arabidopsis thaliana | | Description |
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. Downregulated in senescent leaves. |
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