Use of molecular markers for genotype determination of the ogura rf gene in brassica napus
CA 2283493 A1 · Owner: Pioneer Hi-Bred International, Inc. · Inventors: Riddell, Christine M.; Tulsieram, Lomas K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to Brassica plants and methods of breeding Brassica plants. More particularly, the invention relates to the use of molecular markers for determining the genotype of the Ogura Rf gene in Brassica plants at an early stage in their development. The method involves using a combination of primers derived from RAPD markers in PCR reactions to allow discrimination between homozygous, heterozygous and non-restorer or sterile genotypes. Also disclosed are combinations of primers which allow such discrimination.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 10, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 10, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.