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. 2002 Sep;147(9):1813-20.
doi: 10.1007/s00705-002-0846-y.

A non-aphid-transmissible isolate of bean yellow mosaic potyvirus has an altered NAG motif in its coat protein

S J Wylie  1 , J Kueh, B Welsh, L J Smith, M G K Jones, R A C Jones
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A non-aphid-transmissible isolate of bean yellow mosaic potyvirus has an altered NAG motif in its coat protein

S J Wylie et al. Arch Virol. 2002 Sep.

Abstract

An isolate of Bean yellow mosaic virus (BYMV) not transmitted by aphids (NAT) was compared with the aphid-transmissible isolate (MI) from which it was derived. For each isolate, the sequence of the coat protein and parts of the helper component was determined. A single nucleotide substitution caused a NAG to NAS alteration in the coat protein of the non aphid-transmissible isolate. Loss of aphid transmissibility in isolate BYMV(MI)-NAT was most likely caused by this mutation within the NAG motif. Systemic movement and accumulation of the virus in infected plants were not affected by the mutation.

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