Molecular genetic analyses of the N, NSm and NSs genes of a local population of <i>Orthotospovirus tomatomaculae</i> reveal purifying selection in crops in the southeastern USA.

ABSTRACT: Orthotospovirus tomatomaculae [tomato spotted wilt virus (TSWV)] is a major pathogen in horticultural and row crops worldwide including the USA. In this study, tomato spotted wilt disease incidence was monitored in Arachis hypogaea (peanut; year 1990 to 2024) and Nicotiana tabacum (tobacco; year 2000 to 2024) in commercial farmers' fields in the Southeastern USA. Furthermore, nucleocapsid (N), nonstructural movement (NSm) and nonstructural silencing suppressor (NSs) protein gene sequences of TSWV global populations from North America, South America, Europe, Asia-Pacific, Africa and Australia were compared with local US population and analysed to understand the genetic variability in the virus genome. In our study, full-length sequences of 94 N, 111 NSm and 78 NSs genes

SUBMITTER: Shukla B 

PROVIDER: S-EPMC12282330 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature