Plant RNA-directed RNA polymerase proteins

US7060813B1 · kind B1 · utility

Assignees

• E.I. DU PONT DE NEMOURS AND COMPANY · US
• PIONEER HI-BRED INTERNATIONAL, INC. · US

Inventors

• Joan T. Odell · Bellefonte, US
• Rebecca E. Cahoon · Webster Groves, US
• Jimei Wang · Johnston, US
• Gan-Yuan Zhong · Urbandale, US
• Karlene H. Butler · Newark, US

Key dates

• Filing date: Apr 6, 2000
• Grant date: Jun 13, 2006
• Expiry date: Apr 6, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C12N9/127
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

This invention relates to an isolated nucleic acid fragment encoding a RNA-directed RNA polymerase. The invention also relates to the construction of a chimeric gene encoding all or a substantial portion of the RNA-directed RNA polymerase, in sense or antisense orientation, wherein expression of the chimeric gene results in production of altered levels of the RNA-directed RNA polymerase in a transformed host cell.