Abstract:Chimaeric TA29-barnase gene was obtained by fusing tobacco anther-specific promoter TA29, barnase gene and NOS terminator and was inserted into a plant expression yector containing bromoxynil-resistant bxn gene and then introduced into tobacco plants. Some transgenic tobacco plants were resistant to 1.0 × 10-3 mol/L bromoxynil. At about 26℃, all of the 9 transgenic plants were male fertile; However, at 20℃, 7 out of 11 transgenic plants were male sterile.