Gossypium robinsonii, an Australian wild cotton species is an asymptomatic host of the cotton leaf curl disease pathogen complex

摘要

Three wild species of cotton (Gossypium sp.) of Australian origin being maintained in a living herbarium at Central Cotton Research Institute, Multan, Pakistan were screened for the presence of cotton leaf curl begomovirus components. The screening by PCR, rolling circle amplification and Southern hybridisation, showed that G. robinsonii is an asymptomatic carrier of components of the disease complex prevalent in Pakistan.). Only betasatellites associated with CLCuD was identified by PCR and RCA in G. nelsonii, and G. bickii and suggests that begomovirus levels were below detection limits.