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Record number 520023
Title Latest insights in the epidemiology and diversity of Fusarium oxysporum f.sp. cubense, the causal agent of Panama disease in banana
Author(s) Kema, G.H.J.; Garcia Bastidas, F.A.; Ordonez Roman, N.I.; Salacinas, Maricar; Seidl, M.F.; Thomma, B.P.H.J.; Meijer, H.J.G.
Source In: Abstract Book 29th Fungal Genetics Conference Asilomar 17, Pacific Grove, CA, USA 14-19 March 2017. - Genetics Society of America - p. 88 - 88.
Event 29th Fungal Genetics Conference, Pacific Grove, CA, 2017-03-14/2017-03-19
Department(s) Laboratory of Phytopathology
PPO/PRI Biointeractions and Plant Health
Publication type Abstract in scientific journal or proceedings
Publication year 2017
Abstract Panama disease or Fusarium wilt of banana draws global attention. The currently developing epidemic of the so-called Tropical Race 4 (TR4) is caused by a single clone of Fusarium oxysporum f.sp. cubense (Foc); vegetative compatibility group 01213. It is reminiscent of the previous epidemic that wiped out “Gros Michel” bananas in Central America, which pushed the banana industry into bankruptcy. The epidemic was eventually quenched by cultivating “Cavendish” bananas, which are resistant to the so-called Foc Race 1 strains that caused the epidemic in “Gros Michel”. The industry revived and thrives by the success of “Cavendish” that has developed into a global monoculture. The emergence of TR4 caused havoc and wipes out “Cavendish” plantations in South East Asia, from where the disease now has spread into the Near and Middle East and Africaa. Banana production in many regions is at stake and there are no sustainable solutions available. Our research focuses on the international complexity and addresses mostly genetic diversity in host and pathogen as well as epidemiological aspects embedded in multidisciplinary programs. We have used genotyping by sequencing technologies to describe global and regional diversity in the causal agent Foc and have phenotyped hundreds of banana accessions with various Foc genotypes. Methods to rapidly detect - particularly TR4 - and manage the disease have been developed to slow down the epidemic. This provides the necessary time for developing durable solutions that also contribute to break the hegemony of the global “Cavendish” monoculture by introducing a diversified panel of banana cultivars. The latest developments will be presented and discussed.
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