Plants having mutant sequences that confer altered fatty...

Details Plants having mutant sequences that confer altered fatty... Plants having mutant sequences that confer altered fatty...

A - Human Necessities

01

H

A01H 1/06 (2006.01) A01H 1/00 (2006.01) A01H 5/00 (2006.01) C12N 5/04 (2006.01) C12N 9/02 (2006.01) C12Q 1/68 (2006.01)

Patent

CA 2557769

Seeds, plants and oils are provided having low FDA saturates; high oleic acid; low linoleic acid; high or low palmitic acid; low stearic acid; and low linoleic acid plus linolenic acid; and advantageous functional or nutritional properties. Plants are disclosed that contain a mutation in a delta-12 or delta-15 fatty acid desaturase gene. Preferred plants are rapeseed and sunflower plants. Plants carrying such mutant genes have altered fatty acid composition in seeds. In one embodiment, a plant contains a mutation in a region having the conserved motif His-Xaa-Xaa-Xaa-His, found in delta-12 and delta-15 fatty acid desaturases. A preferred motif has the sequence His-Glu-Cys-Gly-His. A preferred mutation in this motif has the amino acid sequence His-Lys-Cys-Gly- His. Nucleic acid fragments an disclosed that comprise a mutant delta-12 or delta-15 fatty acid desaturase gene sequence.

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