Molecular Methods for Hybrid Rice Production

  • 35 pages

  • Published: 1 Aug 2004

  • Author(s): Mayer, Jorge E., Jefferson, Richard A.

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The main goal of this project was to develop molecular tools that will help solve the problems that prevent the use of hybrid seed technology in Australia. The rationale behind our two-line hybrid system is to create facultative male-sterile lines based on activatable gametocides using a transgenic rice plant producing the activator enzyme in any part of the male sexual organ. Plants would be fully fertile until treated with the compound. Upon treatment the plant would become a female parent for the breeding process. Another goal of this project in the long-term is the fixation of the heterotic effects obtained from hybridisation by introducing apomixis (parthenogenic seed development) into rice. We provide here additional tools to understand and manipulate flower development to this end. 2004, 35pp, Pub. No. 04/003, $16