Squash (Cucurbita pepo)
The United States patent granted to Asgrow Seeds refers to
- a method for transforming squash embryogenic calli with Agrobacterium,
- regeneration of transformed squash plants, and
- components of an induction medium for regeneration of the transformed calli.
Asgrow Seeds was previously a subsidiary of the Upjohn Company, which was sold to Empresas La Moderna (ELM; Mexico) in 1994, and soon after became Seminis Inc.. Seminis is now owned by Monsanto Co. (acquisition signed in 2005).
Specific Patent Information
|Patent Number||Title, Independent Claims and Summary of Claims||Assignee|
||Title – Somatic embryogenesis and transformation of squash
Granted US 5677157 has expired due to non-payment of maintenance fees.
Methods to transform embryogenic calli derived from squash shoot tips and squash seeds with Agrobacterium having a gene of interest. Media for culturing the transformed explant and embryogenic regeneration procedure are claimed.
Additionally, transformation of the same explants by microprojectile bombardment is also claimed. The claims referring to this transformation method are not shown here.
Asgrow Seed Company
|WO 1991/04332 A1
||Title – Somatic embryogenesis of squash
PCT application WO 1991/04332 recites a transformation and regeneration method of Cucurbita pepo. Note that the steps in the published document have skipped number 2. Agrobacterium-mediated transformation of C. pepo is recited in dependent claim 7.
|The Upjohn Company|
Note: Patent information on this page was last updated on 27 March 2006.