M. Ann Tutwiler is the Director General of Bioversity International, an international research for development organization that is a CGIAR Research Centre.

As Director General, Ann Tutwiler is responsible for leading Bioversity International, forging effective research partnerships and overseeing the organization’s strategic priorities and research agenda. She has more than 30 years of experience in agricultural policy and development working in the public and private sectors.

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Dr. Stephen Weise joined Bioversity International in 2008 as the Director of the Commodities for Livelihoods Programme, based in our Montpellier Office in France. He was appointed Deputy Director General Research in 2011. Before joining Bioversity International, Stephan worked for 16 years with the International Institute of Tropical Agriculture (IITA) on a variety of programmes related to tree crops, the environment, and farm diversification in the forest margins of West and Central Africa. 

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