TAPETUM-SPECIFIC PROMOTERS

摘要

The present invention relates to nucleic acid sequences encoding tapetum specific promoters, for use in Artificial Male Sterility systems in plants. In particular, the promoters may be the pMAC2 promoter; the pMAC20 promoter; or promoter sequences which naturally controls the expression of a coding sequence substantially homologous to the MAC2 or MAC20 coding sequences. Also provided are regulatory elements of the promoters; plant cells and plants transformed with the promoter sequences.