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Viruses 2018, 10(6), 318; https://doi.org/10.3390/v10060318

Small RNA NGS Revealed the Presence of Cherry Virus A and Little Cherry Virus 1 on Apricots in Hungary

1
Agricultural Biotechnology Institute, NARIC, 2100 Gödöllő, Hungary
2
Department of Biotechnology, Nanophagetherapy Center, Enviroinvest Corporation, 7632 Pécs, Hungary
3
Fruitculture Research Institute, NARIC, 1223 Budapest, Hungary
4
Institute of Enzymology, Research Center of Natural Sciences, HAS, 1117 Budapest, Hungary
*
Author to whom correspondence should be addressed.
Received: 11 May 2018 / Revised: 8 June 2018 / Accepted: 9 June 2018 / Published: 11 June 2018
(This article belongs to the Special Issue Fruit Tree Viruses and Viroids)
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Abstract

Fruit trees, such as apricot trees, are constantly exposed to the attack of viruses. As they are propagated in a vegetative way, this risk is present not only in the field, where they remain for decades, but also during their propagation. Metagenomic diagnostic methods, based on next generation sequencing (NGS), offer unique possibilities to reveal all the present pathogens in the investigated sample. Using NGS of small RNAs, a special field of these techniques, we tested leaf samples of different varieties of apricot originating from an isolator house or open field stock nursery. As a result, we identified Cherry virus A (CVA) and little cherry virus 1 (LChV-1) for the first time in Hungary. The NGS results were validated by RT-PCR and also by Northern blot in the case of CVA. Cloned and Sanger sequenced viral-specific PCR products enabled us to investigate their phylogenetic relationships. However, since these pathogens have not been described in our country before, their role in symptom development and modification during co-infection with other viruses requires further investigation. View Full-Text
Keywords: small RNA NGS; metagenomics; diagnostics; fruit tree viruses; Cherry virus A; little cherry virus 1; apricot small RNA NGS; metagenomics; diagnostics; fruit tree viruses; Cherry virus A; little cherry virus 1; apricot
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Baráth, D.; Jaksa-Czotter, N.; Molnár, J.; Varga, T.; Balássy, J.; Szabó, L.K.; Kirilla, Z.; Tusnády, G.E.; Preininger, É.; Várallyay, É. Small RNA NGS Revealed the Presence of Cherry Virus A and Little Cherry Virus 1 on Apricots in Hungary. Viruses 2018, 10, 318.

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