Wheat streak mosaic virus genotypes introduced to Argentina are closely related to isolates from the American Pacific Northwest and Australia

Authors

Drake C. Stenger, USDA-ARSFollow
Roy French, USDA-ARSFollow

Date of this Version

2009

Comments

Published in Arch Virol (2009) 154:331–336; DOI 10.1007/s00705-008-0297-1

Abstract

Wheat streak mosaic virus (WSMV) was first detected in Argentina in 2002. Comparison of 78 WSMV coat protein sequences revealed that three Argentine isolates were closely related to isolates from the American Pacific Northwest (APNW) and Australia. Complete sequences were determined for one Argentine isolate, four APNW isolates, and three additional isolates from other regions of the USA. Comparison of these eight new sequences with five previously sequenced isolates of WSMV confirmed close affinity of WSMV from Argentina with APNW isolates. Collectively, these results indicate concurrent establishment of the same WSMV lineage in both Argentina and Australia.