Combinations including CRY3AA and CRY6AA proteins to prevent development of resistance in corn rootworms (Diabrotica spp.)
US9796983B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2011 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Aug 27, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/13
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The subject invention relates in part to Cry3Aa in combination with Cry6Aa. The subject invention relates in part to the surprising discovery that combinations of Cry3Aa and Cry6Aa are useful for preventing development of resistance (to either insecticidal protein system alone) by a corn rootworm (Diabrotica spp.) population. Included within the subject invention are plants producing these insecticidal Cry proteins, which are useful to mitigate concern that a corn rootworm population could develop that would be resistant to either of these insecticidal protein systems alone. The subject invention also relates in part to combinations of Cry3Aa and Cry6Aa proteins “triple-stacked” or “multi-stacked” with another insecticidal protein(s) such as a Cry6Aa protein or binary Cry34/35 proteins. Thus, such embodiments target rootworms with three modes of action. Transgenic plants, including corn, comprising a cry6Aa gene and a cry3Aa gene are included within the scope of the subject invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.