Tapetum-specific promoters

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/82 (2006.01) C07K 14/415 (2006.01) C12N 5/10 (2006.01) C12N 5/14 (2006.01) C12N 15/29 (2006.01)

Patent

CA 2373071

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.

L'invention concerne des séquences d'acides nucléiques codant pour des promoteurs spécifiques du tapetum, à utiliser dans systèmes de stérilité mâle artificielle chez les plantes. Plus particulièrement, le promoteur peut être le promoteur pMAC2, le promoteur pMAC20, ou des séquences promoteur qui régulent de façon naturelle l'expression d'une séquence codante sensiblement homologue aux séquences codantes de MAC2 ou de MAC20. L'invention concerne également des éléments régulateurs des promoteurs, des cellules de plantes et des plantes modifiées au moyen des séquences promoteur.

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