We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Biological and sequence comparisons of Potato virus Y isolates associated with potato tuber necrotic ringspot disease.
- Authors
Boonham, N; Walsh, K; Hims, M; Preston, S; North, J; Barker, I
- Abstract
The biological and molecular relationships between a large number of Potato virus Y (PVY) isolates were examined, concentrating mainly on isolates associated with potato tuber necrotic ringspot disease (PTNRD). Following detailed analysis of the coat-protein gene, four main groups were identified which broadly corresponded to the phenotype of the different isolates. The groups comprised the ordinary strain (PVYO ), the necrotic strain (PVYN ), the C strain (PVYC ) and a group of recombinant (between ordinary and necrotic) isolates. In the latter group, all members were associated with PTNRD. However, four nonrecombinant isolates were also identified which were associated with PTNRD or tuber necrosis. Three were from tubers showing PTNRD symptoms in the field, while the fourth originated from symptomless tubers, but could cause necrotic rings on tubers under glasshouse conditions. The results show that although coat-protein recombination is always found associated with the PTNRD phenotype, some nonrecombinant isolates have very similar biological properties.
- Subjects
POTATO virus Y; TUBER crops
- Publication
Plant Pathology, 2002, Vol 51, Issue 2, p117
- ISSN
0032-0862
- Publication type
Article
- DOI
10.1046/j.1365-3059.2002.00681.x