Characterization of a New Tomato Spotted Wilt Virus Isolates Found in Hippeastrum hybridum (Hort.) Plants in Poland

Two Tomato spotted wilt virus (TSWV) isolates H1 and H2 found in Hippeastrum hybridum plants were characterized based on biological, serological, and molecular properties. Virus isolates showed differences in symptom expression – H1 isolate displayed severe necrotic spots and patterns, whereas mild...

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Main Author: Berniak Hanna
Format: Article
Language:English
Published: Sciendo 2016-06-01
Series:Journal of Horticultural Research
Subjects:
Online Access:https://doi.org/10.1515/johr-2016-0001
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author Berniak Hanna
author_facet Berniak Hanna
author_sort Berniak Hanna
collection DOAJ
description Two Tomato spotted wilt virus (TSWV) isolates H1 and H2 found in Hippeastrum hybridum plants were characterized based on biological, serological, and molecular properties. Virus isolates showed differences in symptom expression – H1 isolate displayed severe necrotic spots and patterns, whereas mild mosaic symptoms were observed on H2-infected H. hybridum plants. Both TSWV isolates showed comparable reactivity with TSWV-specific antibodies and they induced similar symptoms on herbaceous indicator plants, but some differences between these isolates were detected at the nucleotide sequence level of genomic S and M ssRNAs segment fragments. The nucleotide sequences encoding nucleocapsid (N) and nonstructural (NSs and NSm) proteins showed 98.2%, 97.5%, and 96.5% identity, respectively. Phylogenetic analysis of N and NSs sequences conducted for tested isolates and 31 TSWV isolates included for comparison revealed that H1 and H2 isolates fell into the same cluster and they were grouped together with isolates found previously in different vegetables, ornamentals, and weeds. When NSm ORF was analyzed, the tested isolates formed a separate cluster: H1 isolate showed the highest affinity with TSWV isolates infecting chrysanthemum and pepper plants, whereas H2 isolate was most closely related to other virus isolates found in sweet pepper and tomatoes. These results indicate that both isolates were reassortants between different virus isolates, and represented two novel genetic patterns of TSWV.
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spelling doaj.art-237c3b7dbe614f70813b9d9e7552c0232022-12-21T23:38:27ZengSciendoJournal of Horticultural Research2300-50092016-06-0124151210.1515/johr-2016-0001johr-2016-0001Characterization of a New Tomato Spotted Wilt Virus Isolates Found in Hippeastrum hybridum (Hort.) Plants in PolandBerniak Hanna0Research Institute of Horticulture, Konstytucji 3 Maja 1/3, 96-100 Skierniewice, PolandTwo Tomato spotted wilt virus (TSWV) isolates H1 and H2 found in Hippeastrum hybridum plants were characterized based on biological, serological, and molecular properties. Virus isolates showed differences in symptom expression – H1 isolate displayed severe necrotic spots and patterns, whereas mild mosaic symptoms were observed on H2-infected H. hybridum plants. Both TSWV isolates showed comparable reactivity with TSWV-specific antibodies and they induced similar symptoms on herbaceous indicator plants, but some differences between these isolates were detected at the nucleotide sequence level of genomic S and M ssRNAs segment fragments. The nucleotide sequences encoding nucleocapsid (N) and nonstructural (NSs and NSm) proteins showed 98.2%, 97.5%, and 96.5% identity, respectively. Phylogenetic analysis of N and NSs sequences conducted for tested isolates and 31 TSWV isolates included for comparison revealed that H1 and H2 isolates fell into the same cluster and they were grouped together with isolates found previously in different vegetables, ornamentals, and weeds. When NSm ORF was analyzed, the tested isolates formed a separate cluster: H1 isolate showed the highest affinity with TSWV isolates infecting chrysanthemum and pepper plants, whereas H2 isolate was most closely related to other virus isolates found in sweet pepper and tomatoes. These results indicate that both isolates were reassortants between different virus isolates, and represented two novel genetic patterns of TSWV.https://doi.org/10.1515/johr-2016-0001tswvpropertiesphylogenetic analysisreassortment
spellingShingle Berniak Hanna
Characterization of a New Tomato Spotted Wilt Virus Isolates Found in Hippeastrum hybridum (Hort.) Plants in Poland
Journal of Horticultural Research
tswv
properties
phylogenetic analysis
reassortment
title Characterization of a New Tomato Spotted Wilt Virus Isolates Found in Hippeastrum hybridum (Hort.) Plants in Poland
title_full Characterization of a New Tomato Spotted Wilt Virus Isolates Found in Hippeastrum hybridum (Hort.) Plants in Poland
title_fullStr Characterization of a New Tomato Spotted Wilt Virus Isolates Found in Hippeastrum hybridum (Hort.) Plants in Poland
title_full_unstemmed Characterization of a New Tomato Spotted Wilt Virus Isolates Found in Hippeastrum hybridum (Hort.) Plants in Poland
title_short Characterization of a New Tomato Spotted Wilt Virus Isolates Found in Hippeastrum hybridum (Hort.) Plants in Poland
title_sort characterization of a new tomato spotted wilt virus isolates found in hippeastrum hybridum hort plants in poland
topic tswv
properties
phylogenetic analysis
reassortment
url https://doi.org/10.1515/johr-2016-0001
work_keys_str_mv AT berniakhanna characterizationofanewtomatospottedwiltvirusisolatesfoundinhippeastrumhybridumhortplantsinpoland