Sydney, August 16 (IANS): Banana, perhaps the world's favourite and highest selling fruit, could be extinct within a decade, warns a new study. The threat could be coming from something called the Sigatoka complex, made up from three fungal diseases, which pose a huge risk to the world's banana supply, Xinhua news agency reported quoting from a British-based journal PLOS Genetics in a report published on Tuesday. American plant pathologist Ioannis Stergiopoulos said in the report that the Sigatoka complex's fungal diseases -- yellow Sigatoka, eumusae leaf spot and black Sigatoka -- could potentially wipe out supply in the next five to 10 years.