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A model for the generation of tobacco rattle virus (TRV) anomalous isolates: pea early browning virus RNA-2 acquires TRV sequences from both RNA-1 and RNA-2

M. G. Goulden^1,

¹ Department of Virus Research, John Innes Centre for Plant Science Research, Colney Lane, Norwich NR4 7UH
and² Department of Microbiology, University of Birmingham, Birmingham B15 2TT, U.K.

Comparison of the 5'-terminal sequences of several tobraviruses suggests that the RNA-2 molecule of the tobacco rattle virus (TRV) anomalous isolate TCM arose from pea early browning virus (PEBV) RNA-2 by acquisition of 3' and 5' sequences from TRV RNA-1 and RNA-2 molecules, respectively. We have identified a region of homology in the RNA-2 molecules of PEBV, TRV and pepper ringspot virus which could have facilitated this recombination.

Present address: Sainsbury Laboratory, John Innes Centre for Plant Science Research, Colney Lane, Norwich NR4 7UH, U.K.

Received 22 January 1991; accepted 19 March 1991.

This article has been cited by other articles:

				S. A. MacFarlane Molecular biology of the tobraviruses J. Gen. Virol., November 1, 1999; 80(11): 2799 - 2807. [Full Text]