Tomato acid invertase gene
AssigneeThe Regents of the University of California
InventorsAlan B. Bennett, Ellen M. Klann
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Abstract
The present invention relates generally to methods for modifying the sucrose content of fruit. In particular, it relates to methods for increasing fruit sucrose content by inhibiting the expression of acid invertase. Additionally, it relates to methods for decreasing fruit sucrose content and increasing fruit hexose content by over expressing acid invortase.
Claims9
A method of increasing the sucrose content of fruit comprising, introducing into a tomato plant an expression cassette having a plant promoter sequence operably linked to a DNA subsequence of at least 20 base pairs derived from a DNA sequence encoding tomato acid invertase, the DNA subsequence being operably linked to the promoter sequence in an antisense orientation, and selecting resulting plants bearing fruit having increased soluble solids.
A method of improving tomato fruit comprising:
- introducing into a tomato plant an expression cassette having a promoter sequence operably linked to a nucleic acid sequence from a tomato invertase gene, wherein transcription of the nucleic acid sequence inhibits expression of an endogenous invertase gene;
- and
- selecting resulting plants bearing fruit having increased soluble solids.
Dependencies are inferred from the claim text.