Authors: Rita A Marvelli Houston A Hobbs Shuxian Li Nancy K McCoppin Leslie L Domier Glen L Hartman Darin M Eastburn
Publish Date: 2013/09/06
Volume: 159, Issue: 2, Pages: 349-352
Abstract
Virulence and doublestranded RNA dsRNA profiles of 44 isolates of Fusarium virguliforme were compared When grouped according to dsRNA profiles isolates with large dsRNAs were significantly P≤005 less virulent than isolates without dsRNAs Highthroughput sequence analysis of total RNA prepared from cultures with large dsRNAs identified two novel RNA viruses with genome sequences of approximately 93 kbp which were named Fusarium virguliforme dsRNA mycovirus 1 and Fusarium virguliforme dsRNA mycovirus 2 The new viruses were most closely related to a group of unclassified viruses that included viruses of F graminearum and Phlebiopsis gigantea and are related to members of the family TotiviridaeWe thank A M Dorrance W L Pedersen and X B Yang for providing F virguliforme isolates J CheeSanford and K N Lambert for use of gel imaging systems W Chen C J D’Arcy and K N Paige for their research advice and W A Maffit for assistance in total RNA purifications Funding for this project was provided in part from the USDA NC125 project The Illinois Soybean Association and from the University of Illinois at Urbana Champaign Campus Research Board
Keywords: