Bioengineering cotton fiber properties
AssigneeThe Regents of the University of California
InventorThea A. Wilkins
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Abstract
The present invention provides plant fiber expansion (FE) genes that encode FE polypeptides, such as phosphoenol pyruvate carboxylase (PEPcase), expansin, endoglucanase, xyloglucan endoglycosyltransferase (XET), and pectin methyl esterase (PME). The invention further provides fiber-specific promoters. Still further, the invention provides molecular strategies for modulating fiber quality and yield in fiber producing plants by modulating expression of FE genes or mutant forms of FE genes.
Claims29
An isolated nucleic acid molecule comprising a FE polynucleotide sequence, which is at least about 90% identical to SEQ ID NO:1, SEQ ID NO:3, SEQ ID NO:
- 5, SEQ ID NO:
- 7, or SEQ ID NO:
- 9.
A transgenic plant comprising an expression cassette containing a plant promoter operably linked to a heterologous FE polynucleotide sequence, which is at least about 90% identical to SEQ ID NO:1, SEQ ID NO:3, SEQ ID NO:5, SEQ ID NO:7, and SEQ ID NO:9.
A method of modulating fiber quality and yield in a plant, the method comprising introducing into the plant an expression cassette containing a plant promoter operably linked to a heterologous FE polynucleotide sequence, which is at least about 90% identical to SEQ ID NO:1, SEQ ID NO:3, SEQ ID NO:5, SEQ ID NO:7, and SEQ ID NO:9.
Dependencies are inferred from the claim text.