Neu: Erste gegen Panamakrankheit resistente Cavendish-Banane

Forscher der Queensland University of Technology in Brisbane, Australien, haben gentechnisch veränderte Cavendish-Bananen entwickelt, die gegen die verheerende bodenbürtige Panama-Krankheit resistent sind.

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Researchers from Queensland University of Technology in Brisbane, Australia, have designed genetically modified Cavendish bananas with resistance to the devastating soil-borne Panama disease. This disease is caused by the fungus Fusarium oxysporum f.sp. cubense Tropical race 4 (TR4) and also known as Fusarium wilt of banana. Scientists from Wageningen University & Research in the Netherlands validated the field data.

In the world’s first field trial with genetically modified banana plants conducted in heavily TR4-infested soil, one Cavendish line transformed with a gene taken from a wild banana remained completely TR4 free, while three other lines showed robust resistance. The results have just been published: "Transgenic Cavendish bananas with resistance to Fusarium wilt tropical race 4" - Nature Communications (2017).

The team cloned the so-called RGA2 gene from the wild progenitor of edible bananas, Musaacuminata ssp. Malaccensis, which has a remarkable resistance to TR4. One modified Cavendish line (RGA2-3) remained TR4-free for the three years of the trial.