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Sweet Potato Symptomless Virus 1: First Detection in Europe and Generation of an Infectious Clone
Sweet potato (Ipomoea batatas), a staple food for people in many of the least developed countries, is affected by many viral diseases. In 2017, complete genome sequences of sweet potato symptomless virus 1 (SPSMV-1, genus Mastrevirus, family Geminiviridae) isolates were reported, although a partial...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9504438/ https://www.ncbi.nlm.nih.gov/pubmed/36144338 http://dx.doi.org/10.3390/microorganisms10091736 |
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author | Fiallo-Olivé, Elvira García-Merenciano, Ana Cristina Navas-Castillo, Jesús |
author_facet | Fiallo-Olivé, Elvira García-Merenciano, Ana Cristina Navas-Castillo, Jesús |
author_sort | Fiallo-Olivé, Elvira |
collection | PubMed |
description | Sweet potato (Ipomoea batatas), a staple food for people in many of the least developed countries, is affected by many viral diseases. In 2017, complete genome sequences of sweet potato symptomless virus 1 (SPSMV-1, genus Mastrevirus, family Geminiviridae) isolates were reported, although a partial SPSMV-1 genome sequence had previously been identified by deep sequencing. To assess the presence of this virus in Spain, sweet potato leaf samples collected in Málaga (southern continental Spain) and the Spanish Canary Islands of Tenerife and Gran Canaria were analyzed. SPSMV-1 was detected in samples from all the geographical areas studied, as well as in plants of several entries obtained from a germplasm collection supposed to be virus-free. Sequence analysis of full-length genomes of isolates from Spain showed novel molecular features, i.e., a novel nonanucleotide in the intergenic region, TCTTATTAC, and a 24-nucleotide deletion in the V2 open reading frame. Additionally, an agroinfectious clone was developed and infectivity assays showed that the virus was able to asymptomatically infect Nicotiana benthamiana, Ipomoea nil, I. setosa, and sweet potato, thus confirming previous suggestions derived from observational studies. To our knowledge, this is the first report of the presence of SPSMV-1 in Spain and Europe and the first agroinfectious clone developed for this virus. |
format | Online Article Text |
id | pubmed-9504438 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-95044382022-09-24 Sweet Potato Symptomless Virus 1: First Detection in Europe and Generation of an Infectious Clone Fiallo-Olivé, Elvira García-Merenciano, Ana Cristina Navas-Castillo, Jesús Microorganisms Article Sweet potato (Ipomoea batatas), a staple food for people in many of the least developed countries, is affected by many viral diseases. In 2017, complete genome sequences of sweet potato symptomless virus 1 (SPSMV-1, genus Mastrevirus, family Geminiviridae) isolates were reported, although a partial SPSMV-1 genome sequence had previously been identified by deep sequencing. To assess the presence of this virus in Spain, sweet potato leaf samples collected in Málaga (southern continental Spain) and the Spanish Canary Islands of Tenerife and Gran Canaria were analyzed. SPSMV-1 was detected in samples from all the geographical areas studied, as well as in plants of several entries obtained from a germplasm collection supposed to be virus-free. Sequence analysis of full-length genomes of isolates from Spain showed novel molecular features, i.e., a novel nonanucleotide in the intergenic region, TCTTATTAC, and a 24-nucleotide deletion in the V2 open reading frame. Additionally, an agroinfectious clone was developed and infectivity assays showed that the virus was able to asymptomatically infect Nicotiana benthamiana, Ipomoea nil, I. setosa, and sweet potato, thus confirming previous suggestions derived from observational studies. To our knowledge, this is the first report of the presence of SPSMV-1 in Spain and Europe and the first agroinfectious clone developed for this virus. MDPI 2022-08-28 /pmc/articles/PMC9504438/ /pubmed/36144338 http://dx.doi.org/10.3390/microorganisms10091736 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Fiallo-Olivé, Elvira García-Merenciano, Ana Cristina Navas-Castillo, Jesús Sweet Potato Symptomless Virus 1: First Detection in Europe and Generation of an Infectious Clone |
title | Sweet Potato Symptomless Virus 1: First Detection in Europe and Generation of an Infectious Clone |
title_full | Sweet Potato Symptomless Virus 1: First Detection in Europe and Generation of an Infectious Clone |
title_fullStr | Sweet Potato Symptomless Virus 1: First Detection in Europe and Generation of an Infectious Clone |
title_full_unstemmed | Sweet Potato Symptomless Virus 1: First Detection in Europe and Generation of an Infectious Clone |
title_short | Sweet Potato Symptomless Virus 1: First Detection in Europe and Generation of an Infectious Clone |
title_sort | sweet potato symptomless virus 1: first detection in europe and generation of an infectious clone |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9504438/ https://www.ncbi.nlm.nih.gov/pubmed/36144338 http://dx.doi.org/10.3390/microorganisms10091736 |
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