Effect of Temperature on the eui Gene Expression of TGMS Rice

Effect of temperature on the eui gene expression of TGMS rice Changxuan 3S were analyzed under the condition of natural ecology and different artificial temperature. The results were as following: There was a negative correlation between panicle elongation and natural temperature at 9-20 days before flowering, and the negative correlation of the panicle elongation with mean diurnal temperature at 12-17 days (from pollen mother cell formation to meiosis) before flowering was the most significant. In the thermo-sensitive period of the eui gene, when Changxuan 3S was treated with the condition of constant 22℃,24℃,26℃,28℃, the eui gene could express under the treatment of 22℃, 24℃, 26℃, respectively, and the lower the temperature treated, the longer the panicle elongation was, while the expression of the eui gene was inhibited at temperature 28℃.