Location: National Germplasm Resources Laboratory
2022 Annual Report
Accomplishments
1. Two novel viruses of the genus Potyvirus were identified from Tradescantia spp. plants with mottle and mosaic symptoms. The diseased plants of this ornamental (commonly called spiderwort) were collected from a nursery in Pennsylvania experiencing a disease outbreak. The samples were analyzed by high throughput sequencing (HTS) as requested by the Pennsylvania Department of Agriculture (PDA). Sequence analysis revealed the presence of six viruses- three novel viruses and three known viruses. Genomic sequences of the two novel [Tradescantia mottle virus 1 (TMoV-1) and Tradescantia mottle virus 2 (TMoV-2)] and one known [Tradescantia mild mottle virus (TMMV)] potyviruses were determined. This information is useful to the ornamental industry and specifically helps develop better virus detection and control measures in production greenhouses.
