Cotton fiber transcriptional factors

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/82 (2006.01) A01H 5/00 (2006.01) C07K 14/36 (2006.01) C07K 14/415 (2006.01) C12N 5/10 (2006.01) C12N 9/02 (2006.01) C12N 9/88 (2006.01) C12N 15/29 (2006.01) C12N 15/31 (2006.01)

Patent

CA 2221747

Novel DNA constructs are provided which may be used as molecular probes or inserted into a plant host to provide for modification of transcription of a DNA sequence of interest during various stages of cotton fiber development. The DNA constructs comprise a cotton fiber transcriptional initiation regulatory region associated with a gene which is expressed in cotton fiber. Also provided is novel cotton having a cotton fiber which has a natural color introduced by the expression in the cotton fiber cell, using such a construct, of pigment synthesis genes. Cotton fiber cells having color produced by genetic engineering and cotton cells comprising melanin and indigo pigments are included.

L'invention décrit des ADN de recombinaison de type nouveau pouvant être utilisés comme sondes moléculaires ou insérés à l'intérieur d'une plante hôte pour y effectuer la modification de la transcription d'une séquence d'ADN à étudier au cours de diverses étapes du développement de la fibre de coton. Lesdits ADN de recombinaison comportent une région de régulation d'initiation de la transcription de la fibre de coton associée à un gène exprimé dans la fibre de coton. L'invention décrit également un coton de type nouveau ayant une fibre de coton de couleur naturelle introduite par l'expression dans la cellule de fibre de coton, à l'aide d'une telle structure de recombinaison, de gènes de synthèse de pigment. L'invention inclut les cellules de fibre de coton ayant une couleur produite par génie génétique et les cellules de coton comprenant des pigments mélaniques et indigo.

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