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Updated: Jun 3, 2026

Rapid, Seamless Generation of Recombinant Poxviruses using Host Range and Visual Selection
Published on: May 24, 2020
Sequence diversity and potential recombination events in the coat protein gene of Apple stem pitting virus
Beata Komorowska1, Paweł Siedlecki, Szymon Kaczanowski
1Department of Plant Protection, Research Institute of Horticulture, Konstytucji 3 Maja 1/3, 96-100 Skierniewice, Poland. bkomorow@insad.pl
Abstract:
The variability of the Apple stem pitting virus (ASPV) coat protein (CP) gene was investigated. The CP gene of ten virus isolates from apple and pear trees was sequenced. Comparison of all sequenced virus isolates revealed high diversity of the CP gene (70.7-93.5% at the nucleotide level and 77.8-98.7% at the amino acid level). Additionally, one or two deletions in the N-terminal part of the coat protein gene of the studied virus isolates were identified. The ratio of nonsynonymous to synonymous polymorphic sites indicated that purifying selection has acted to eliminate deleterious mutations in coding sites. Moreover, the evidences for recombination in analyzed sequences were provided. It is likely that recombination, along with selection, enhances the speed of elimination of deleterious mutations in ASPV, following the mutational deterministic hypothesis of Kondrashov.
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