Enhanced production of squalene in plant systems
AssigneeThe Regents of the University of Colorado, a body corporate
InventorsBrian DEDECKER, Simon KALMUS, David BIRKHAEUSER, Nickles BADGER
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Abstract
Systems, methods and compositions for the inducible production of squalene in plants seeds, in part by downregulating the endogenous sterol production pathway, for example through heterologous expression of one or more inhibitory RNA molecules, and in a preferred embodiment a novel hairpin multiple RNAi molecules that target paralogs of squalene epoxidase (SQE). Downregulating SQE causes a buildup of squalene by both blocking downstream conversion of squalene into sterols and releasing the negative feedback loop that sterols have with the upstream MVA pathway.
Claims14
1-13. (canceled)
A method of upregulating squalene production in a plant cell comprising:
- expressing in a plant cell a heterologous nucleotide sequence, operably linked to a promoter, encoding a RNAi molecule directed against one or more of the plant's endogenous squalene epoxidase (SQE) enzymes, wherein said RNAi molecule downregulates the downstream conversion of squalene into sterols.
26-31. (canceled)
Dependencies are inferred from the claim text.