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Tag Archives: Biotechnology

SASHA Brief 2011: Weevil resistant sweetpotato through biotechnology

Weevils can destroy 60%-100% of sweetpotato (SP) crops during periods of pronounced drought. As SP is at times the only food available, this can be quite devastating. The impact of weevils can affect not only food security, but also sweetpotato production, marketability, and sustainability, especially in areas experiencing longer dry …

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SASHA Brief 2015: Weevil resistance through biotechnology

This flyer summarizes the objectives, achievements and plans of CIP’s work to address the problem of weevils through development of weevil resistant sweetpotato varieties through breeding and biotechnology. It outlines the Bt-RNAi combined gene technology being applied, and the progress made between 2014 and 2015 towards achieving the project objectives.

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Presentation: Engineering Weevil Resistance in Sweetpotato to Benefit Farmers in Africa

This presentation is described by the attached abstract Marc Ghislain1a, Lydia Wamalwa1a, Sandra Manrique1b, Jan Kreuze1b, Runyararo Rukarwa1c Robert Mwanga1c, Maria Soto-Aguilar2, Katterinne Prentice3, Olivier Christiaens3, Ine Pertry3, Godelieve Gheysen3, Guy Smagghe3   1 International Potato center, a Nairobi Kenya, b Lima Peru. C Namulonge Uganda 2 Donald Danforth Plant …

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Improvement of Sweetpotato: opportunities for transgenic sweetpotato

This presentation by Marc Ghislain during the IPBO course in 2011 covered the following; Gene-specific genetic modification:          • Direct gene transfer – Transgenesis          • Gene editing Outline    2. The economics of a GM sweetpotato    3. The product development    4. …

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Weevil Resistant Sweetpotato through Biotechnology

African sweetpotato weevils (SPW), Cylas puncticollis and C. brunneus, are a major threat to sweetpotato, which plays a vital role in food security and income generation for both the urban and rural poor in Sub-Saharan Africa (SSA). SPW can devastate sweetpotato production, including total crop loss. A socio-economic study undertaken …

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Cultivar and Plant Organ Type Differences in Influencing Somatic Embryogenesis in Ugandan Sweetpotato

Resistance to weevils, Cylas puncticollis and C. brunneus, is very low in the available sweetpotato germplasm. Two cry genes are now accessible in Uganda for the improvement of resistance to weevils in sweetpotato through genetic transformation. The objective of the reported research is to develop an in vitro method of …

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