Expression of ARR5, ARR6, ARR7, and ARR15 in response to cold in arr1-3 and 35S:ARR1 compared with that in the wild-type plants. Eleven-day-old light-grown seedlings were treated for the indicated times with cold at 1°C. Treatment and analysis of the samples were performed as described in the Figure 1 legend. Black, dotted, and striped bars represent transcript levels from the wild-type plants, arr1-3, and 35S:ARR1 transgenic plants, respectively.