Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Occurrence of potato yellowing virus in naranjilla (Solanum quitoense Lam.) in Ecuador.

Abstract

Starting in 2015, generalized chlorosis, inter veins-space yellowing or chlorotic areas and young leaf curling symptoms were detected in plants of S. quitoense in Tumbaco (Pichincha) in plants of common origin at the INIAP Experimental Farm, Ecuador. The occurrence of potato yellowing virus (PYV) was confirmed in symptomatic leaves, from INIAP experimental farm, by DAS-ELISA with PYV specific antiserum, eight out of ten plants tested positive. High throughput sequencing was carried out on a pool of RNA from leaves of three different symptomatic plants. Results revealed the presence of not potato yellowing virus (PYV) but also Tobacco virus 2, potato leafroll virus, tobacco vein clearing virus and tomato torrado virus (with a lower coverage), indicating that the observed symptoms cannot be attributed to PYV only. This is thought to be the first report of PYV infecting S. quitoense as a new host.