Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Cucumber mosaic virus infecting Morinda officinalis in China.

Abstract

During a survey in 2019, ten Morinda officinalis plants were collected at each of 5 different sites where 30% of the plants exhibited virus-like symptoms including foliar mosaic and deformation, and plant stunting in Deqin County, Guangdong Province, China. Total RNA was extracted from symptomatic leaves for high throughput sequencing by Illumina Hiseq 4000 to identify pathogens associated with diseased plants. Sequence analyses revealed the causal agent as cucumber mosaic virus (CMV) from the genus Cucumovirus in the family Bromoviridae. This was further confirmed by RT-PCR. CMV was also identified in additional samples of M. officinalis plants with mosaic-like symptoms in other fields in the same county. This is thought to be the first report of CMV and of any virus in M. officinalis.