Better emergence characteristics and improved seedling...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/82 (2006.01) A01H 5/00 (2006.01) C07K 14/415 (2006.01) C12N 5/10 (2006.01) C12N 15/29 (2006.01)

Patent

CA 2343717

This invention relates to seedlings which demonstrate better emergence characteristics when grown in darkness and improved seedling growth when grown under low-light levels. More specifically, the present invention relates to producing plant cells and whole plants which contain a nucleic acid sequence coding for the Coil domain as well as the sequence coding for the wildtype COP1 gene. The plants of this invention display unopened, compact leaves during seedling emergence in the darkness and reduced etiolation of seedings grown in low-levels after emergence. The invention further relates to plant breeding methods which enable the transfer of these desirable traits to wildtype plants.

L'invention a trait à des plantules qui présentent de meilleures caractéristiques de levée quand ils sont cultivés dans l'obscurité, et une croissance améliorée de plantule quand ils sont cultivés dans des conditions de lumière faible. Plus spécifiquement, la présente invention a trait à la production de cellules végétales et de végétaux entiers qui contiennent une séquence d'acides nucléiques codant pour le domaine Coil ainsi que la séquence codant pour le gène COP1 de type sauvage. Les végétaux de l'invention présentent des feuilles non ouvertes, compactes au cours de la levée du plantule dans l'obscurité, et un étiolement réduit de plantules cultivés dans des conditions de lumière faible après levée. L'invention a en outre trait à des procédés d'amélioration de plantes qui permettent de transférer ces caractéristiques voulues à des végétaux de type sauvage.

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