1
|
da Silva JPH, de Resende FMP, da Silva JCF, de Breuil S, Nome C, Bejerman N, Zerbini FM. Amesuviridae: a new family of plant-infecting viruses in the phylum Cressdnaviricota, realm Monodnaviria. Arch Virol 2023; 168:223. [PMID: 37561218 DOI: 10.1007/s00705-023-05852-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
The phylum Cressdnaviricota comprises viruses with single-stranded, circular DNA genomes that encode an HUH-type endonuclease (known as Rep). The phylum includes two classes, eight orders, and 11 families. Here, we report the creation of a twelfth family in the order Mulpavirales, class Arfiviricetes of the phylum Cressdnaviricota. The family Amesuviridae comprises viruses that infect plants and is divided into two genera: Temfrudevirus, including the species Temfrudevirus temperatum (with temperate fruit decay-associated virus as a member), and Yermavirus, including the species Yermavirus ilicis (with yerba mate-associated circular DNA virus as a member). Both viruses encode Rep proteins with HUH endonuclease and SH3 superfamily helicase domains. Phylogenetic analysis indicates that the replicative module of amesuviruses constitutes a well-supported monophyletic clade related to Rep proteins from viruses in the order Mulpavirales. Furthermore, both viruses encode a single capsid protein (CP) related to geminivirus CPs. Phylogenetic incongruence between the replicative and structural modules of amesuviruses suggests a chimeric origin resulting from remote recombination events between ancestral mulpavirales and geminivirids. The creation of the family Amesuviridae has been ratified by the International Committee on Taxonomy of Viruses (ICTV).
Collapse
Affiliation(s)
| | | | | | - Soledad de Breuil
- Instituto de Patología Vegetal, Centro de Investigaciones, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Camino 60 Cuadras Km 5.5, X5020ICA, Agropecuarias, Córdoba, Argentina
| | - Claudia Nome
- Instituto de Patología Vegetal, Centro de Investigaciones, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Camino 60 Cuadras Km 5.5, X5020ICA, Agropecuarias, Córdoba, Argentina
| | - Nicolas Bejerman
- Instituto de Patología Vegetal, Centro de Investigaciones, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Camino 60 Cuadras Km 5.5, X5020ICA, Agropecuarias, Córdoba, Argentina
| | | |
Collapse
|
2
|
Bejerman N, Acevedo RM, de Breuil S, Ruiz OA, Sansberro P, Dietzgen RG, Nome C, Debat H. Molecular characterization of a novel cytorhabdovirus with a unique genomic organization infecting yerba mate (Ilex paraguariensis) in Argentina. Arch Virol 2020; 165:1475-1479. [PMID: 32246285 DOI: 10.1007/s00705-020-04609-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 03/10/2020] [Indexed: 01/02/2023]
Abstract
The genome of a novel rhabdovirus was detected in yerba mate (Ilex paraguariensis St. Hil.). The newly identified virus, tentatively named "yerba mate virus A" (YmVA), has a genome of 14,961 nucleotides. Notably, eight open reading frames were identified in the antigenomic orientation of the negative-sense, single-stranded viral RNA, including two novel accessory genes, in the order 3'-N-P-3-4-M-G-L-8-5'. Sequence comparisons of the encoded proteins as well as phylogenetic analysis suggest that YmVA is a new member of the genus Cytorhabdovirus, family Rhabdoviridae. YmVA's unique genomic organization and phylogenetic relationships indicate that this virus likely represents a distinct evolutionary lineage among the cytorhabdoviruses.
Collapse
Affiliation(s)
- Nicolás Bejerman
- Instituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Camino 60 Cuadras Km 5,5, (X5020ICA), Córdoba, Argentina. .,Consejo Nacional de Investigaciones Científicas y Técnicas, Unidad de Fitopatología y Modelización Agrícola, Buenos Aires, Argentina.
| | - Raúl Maximiliano Acevedo
- Laboratorio de Biotecnología Aplicada y Genómica Funcional. Facultad de Ciencias Agrarias, Instituto de Botánica del Nordeste (IBONE-CONICET), Universidad Nacional del Nordeste, W3402BKG, Corrientes, Argentina
| | - Soledad de Breuil
- Instituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Camino 60 Cuadras Km 5,5, (X5020ICA), Córdoba, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas, Unidad de Fitopatología y Modelización Agrícola, Buenos Aires, Argentina
| | - Oscar A Ruiz
- INTECH (UNSAM-CONICET), Unidad de Biotecnología 1, B7130IWA, Chascomús, Argentina
| | - Pedro Sansberro
- Laboratorio de Biotecnología Aplicada y Genómica Funcional. Facultad de Ciencias Agrarias, Instituto de Botánica del Nordeste (IBONE-CONICET), Universidad Nacional del Nordeste, W3402BKG, Corrientes, Argentina
| | - Ralf G Dietzgen
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Claudia Nome
- Instituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Camino 60 Cuadras Km 5,5, (X5020ICA), Córdoba, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas, Unidad de Fitopatología y Modelización Agrícola, Buenos Aires, Argentina
| | - Humberto Debat
- Instituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Camino 60 Cuadras Km 5,5, (X5020ICA), Córdoba, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas, Unidad de Fitopatología y Modelización Agrícola, Buenos Aires, Argentina
| |
Collapse
|
3
|
Bejerman N, Trucco V, de Breuil S, Pardina PR, Lenardon S, Giolitti F. Genome characterization of an Argentinean isolate of alfalfa leaf curl virus. Arch Virol 2017; 163:799-803. [PMID: 29209812 DOI: 10.1007/s00705-017-3673-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 11/24/2017] [Indexed: 01/05/2023]
Abstract
We investigated the molecular characteristics of an Argentinean isolate of alfalfa leaf curl virus (ALCV-Arg), a virus of the genus Capulavirus in the family Geminiviridae that was isolated from alfalfa plants showing dwarfism. The genome was found to be 2,750 nucleotides in length. In pairwise comparisons, this ALCV isolate shared 83.2% to 92.6% sequence identity with European ALCV isolates. Sequence comparisons and phylogenetic analysis showed that this isolate combines features of strains A and B of ALCV. Recombination analysis showed that ALCV-Arg is a recombinant isolate that was generated by intraspecific recombination between ALCV strains A and B. The results of this study not only show that ALCV-Arg is unique because it combines features of strains A and B but also show that ALCV naturally infects this forage crop on the American continent.
Collapse
Affiliation(s)
- Nicolás Bejerman
- IPAVE-CIAP-INTA, Av. 11 de Septiembre 4755, 5020, Córdoba, Argentina. .,Concejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (1425 FBQ) CABA, Buenos Aires, Argentina.
| | - Verónica Trucco
- IPAVE-CIAP-INTA, Av. 11 de Septiembre 4755, 5020, Córdoba, Argentina
| | - Soledad de Breuil
- IPAVE-CIAP-INTA, Av. 11 de Septiembre 4755, 5020, Córdoba, Argentina.,Concejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (1425 FBQ) CABA, Buenos Aires, Argentina
| | | | - Sergio Lenardon
- IPAVE-CIAP-INTA, Av. 11 de Septiembre 4755, 5020, Córdoba, Argentina.,Facultad de Agronomía y Veterinaria (FAV), Universidad Nacional de Río Cuarto (UNRC), Enlaces Rutas 8 y 36, 5800, Río Cuarto, Córdoba, Argentina
| | - Fabián Giolitti
- IPAVE-CIAP-INTA, Av. 11 de Septiembre 4755, 5020, Córdoba, Argentina
| |
Collapse
|
4
|
Cabrera Mederos D, Bejerman N, Trucco V, de Breuil S, Lenardon S, Giolitti F. Complete genome sequence of sunflower ring blotch virus, a new potyvirus infecting sunflower in Argentina. Arch Virol 2017; 162:1787-1790. [PMID: 28224251 DOI: 10.1007/s00705-017-3275-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 01/17/2017] [Indexed: 10/20/2022]
Abstract
The complete genome sequence of sunflower ring blotch virus (SuRBV), a previously undescribed potyvirus infecting sunflower in Argentina, is reported. The SuRBV genome comprises 9555 nucleotides (nt) and encodes a polyprotein of 3061 amino acids, flanked by 5' and 3' untranslated regions of 117 and 255 nt, respectively. Phylogenetic analysis showed that SuRBV belongs to the potato virus Y (PVY) subgroup and clusters together with sunflower chlorotic mottle virus and bidens mosaic virus. Percentage nucleotide identity between the whole genomes of SuRBV and BiMV was 70.6%, suggesting SuRBV should be considered a distinct species in the genus Potyvirus.
Collapse
Affiliation(s)
- Dariel Cabrera Mederos
- Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Av. 11 de Septiembre 4755, X5020ICA, Córdoba, Argentina. .,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FBQ, Buenos Aires, Argentina.
| | - Nicolás Bejerman
- Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Av. 11 de Septiembre 4755, X5020ICA, Córdoba, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FBQ, Buenos Aires, Argentina
| | - Verónica Trucco
- Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Av. 11 de Septiembre 4755, X5020ICA, Córdoba, Argentina
| | - Soledad de Breuil
- Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Av. 11 de Septiembre 4755, X5020ICA, Córdoba, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FBQ, Buenos Aires, Argentina
| | - Sergio Lenardon
- Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Av. 11 de Septiembre 4755, X5020ICA, Córdoba, Argentina
| | - Fabián Giolitti
- Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Av. 11 de Septiembre 4755, X5020ICA, Córdoba, Argentina.
| |
Collapse
|
5
|
de Breuil S, Cañizares J, Blanca JM, Bejerman N, Trucco V, Giolitti F, Ziarsolo P, Lenardon S. Analysis of the coding-complete genomic sequence of groundnut ringspot virus suggests a common ancestor with tomato chlorotic spot virus. Arch Virol 2016; 161:2311-6. [PMID: 27260536 DOI: 10.1007/s00705-016-2912-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 05/24/2016] [Indexed: 11/29/2022]
Abstract
Groundnut ringspot virus (GRSV) and tomato chlorotic spot virus (TCSV) share biological and serological properties, so their identification is carried out by molecular methods. Their genomes consist of three segmented RNAs: L, M and S. The finding of a reassortant between these two viruses may complicate correct virus identification and requires the characterization of the complete genome. Therefore, we present for the first time the complete sequences of all the genes encoded by a GRSV isolate. The high level of sequence similarity between GRSV and TCSV (over 90 % identity) observed in the genes and proteins encoded in the M RNA support previous results indicating that these viruses probably have a common ancestor.
Collapse
Affiliation(s)
- Soledad de Breuil
- Instituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Camino 60 Cuadras Km 5,5, X5020ICA, Córdoba, Argentina. .,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB, CABA, Argentina.
| | - Joaquín Cañizares
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de Valencia (COMAV-UPV), Camino de Vera s/n, 46022, Valencia, Spain
| | - José Miguel Blanca
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de Valencia (COMAV-UPV), Camino de Vera s/n, 46022, Valencia, Spain
| | - Nicolás Bejerman
- Instituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Camino 60 Cuadras Km 5,5, X5020ICA, Córdoba, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB, CABA, Argentina
| | - Verónica Trucco
- Instituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Camino 60 Cuadras Km 5,5, X5020ICA, Córdoba, Argentina
| | - Fabián Giolitti
- Instituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Camino 60 Cuadras Km 5,5, X5020ICA, Córdoba, Argentina
| | - Peio Ziarsolo
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de Valencia (COMAV-UPV), Camino de Vera s/n, 46022, Valencia, Spain
| | - Sergio Lenardon
- Instituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Camino 60 Cuadras Km 5,5, X5020ICA, Córdoba, Argentina
| |
Collapse
|
6
|
Bejerman N, Giolitti F, Trucco V, de Breuil S, Dietzgen RG, Lenardon S. Complete genome sequence of a new enamovirus from Argentina infecting alfalfa plants showing dwarfism symptoms. Arch Virol 2016; 161:2029-32. [PMID: 27068164 DOI: 10.1007/s00705-016-2854-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 03/30/2016] [Indexed: 11/27/2022]
Abstract
Alfalfa dwarf disease, probably caused by synergistic interactions of mixed virus infections, is a major and emergent disease that threatens alfalfa production in Argentina. Deep sequencing of diseased alfalfa plant samples from the central region of Argentina resulted in the identification of a new virus genome resembling enamoviruses in sequence and genome structure. Phylogenetic analysis suggests that it is a new member of the genus Enamovirus, family Luteoviridae. The virus is tentatively named "alfalfa enamovirus 1" (AEV-1). The availability of the AEV-1 genome sequence will make it possible to assess the genetic variability of this virus and to construct an infectious clone to investigate its role in alfalfa dwarfism disease.
Collapse
Affiliation(s)
- Nicolás Bejerman
- IPAVE-CIAP-INTA, Av. 11 de Septiembre 4755, Córdoba, 5020, Argentina. .,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (1425 FBQ) CABA, Buenos Aires, Argentina.
| | - Fabián Giolitti
- IPAVE-CIAP-INTA, Av. 11 de Septiembre 4755, Córdoba, 5020, Argentina
| | - Verónica Trucco
- IPAVE-CIAP-INTA, Av. 11 de Septiembre 4755, Córdoba, 5020, Argentina
| | - Soledad de Breuil
- IPAVE-CIAP-INTA, Av. 11 de Septiembre 4755, Córdoba, 5020, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (1425 FBQ) CABA, Buenos Aires, Argentina
| | - Ralf G Dietzgen
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Sergio Lenardon
- IPAVE-CIAP-INTA, Av. 11 de Septiembre 4755, Córdoba, 5020, Argentina
| |
Collapse
|
7
|
Bejerman N, Giolitti F, de Breuil S, Trucco V, Nome C, Lenardon S, Dietzgen RG. Complete genome sequence and integrated protein localization and interaction map for alfalfa dwarf virus, which combines properties of both cytoplasmic and nuclear plant rhabdoviruses. Virology 2015; 483:275-83. [PMID: 26004251 DOI: 10.1016/j.virol.2015.05.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Revised: 05/01/2015] [Accepted: 05/02/2015] [Indexed: 12/19/2022]
Abstract
We have determined the full-length 14,491-nucleotide genome sequence of a new plant rhabdovirus, alfalfa dwarf virus (ADV). Seven open reading frames (ORFs) were identified in the antigenomic orientation of the negative-sense, single-stranded viral RNA, in the order 3'-N-P-P3-M-G-P6-L-5'. The ORFs are separated by conserved intergenic regions and the genome coding region is flanked by complementary 3' leader and 5' trailer sequences. Phylogenetic analysis of the nucleoprotein amino acid sequence indicated that this alfalfa-infecting rhabdovirus is related to viruses in the genus Cytorhabdovirus. When transiently expressed as GFP fusions in Nicotiana benthamiana leaves, most ADV proteins accumulated in the cell periphery, but unexpectedly P protein was localized exclusively in the nucleus. ADV P protein was shown to have a homotypic, and heterotypic nuclear interactions with N, P3 and M proteins by bimolecular fluorescence complementation. ADV appears unique in that it combines properties of both cytoplasmic and nuclear plant rhabdoviruses.
Collapse
Affiliation(s)
- Nicolás Bejerman
- Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Camino a 60 Cuadras k 5,5, Córdoba X5020ICA, Argentina; Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD 4072, Australia.
| | - Fabián Giolitti
- Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Camino a 60 Cuadras k 5,5, Córdoba X5020ICA, Argentina
| | - Soledad de Breuil
- Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Camino a 60 Cuadras k 5,5, Córdoba X5020ICA, Argentina
| | - Verónica Trucco
- Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Camino a 60 Cuadras k 5,5, Córdoba X5020ICA, Argentina
| | - Claudia Nome
- Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Camino a 60 Cuadras k 5,5, Córdoba X5020ICA, Argentina
| | - Sergio Lenardon
- Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Camino a 60 Cuadras k 5,5, Córdoba X5020ICA, Argentina
| | - Ralf G Dietzgen
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD 4072, Australia
| |
Collapse
|
8
|
Trucco V, de Breuil S, Bejerman N, Lenardon S, Giolitti F. Complete nucleotide sequence of Alfalfa mosaic virus isolated from alfalfa (Medicago sativa L.) in Argentina. Virus Genes 2014; 48:562-5. [PMID: 24510307 DOI: 10.1007/s11262-014-1045-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 01/25/2014] [Indexed: 11/27/2022]
Abstract
The complete nucleotide sequence of an Alfalfa mosaic virus (AMV) isolate infecting alfalfa (Medicago sativa L.) in Argentina, AMV-Arg, was determined. The virus genome has the typical organization described for AMV, and comprises 3,643, 2,593, and 2,038 nucleotides for RNA1, 2 and 3, respectively. The whole genome sequence and each encoding region were compared with those of other four isolates that have been completely sequenced from China, Italy, Spain and USA. The nucleotide identity percentages ranged from 95.9 to 99.1 % for the three RNAs and from 93.7 to 99 % for the protein 1 (P1), protein 2 (P2), movement protein and coat protein (CP) encoding regions, whereas the amino acid identity percentages of these proteins ranged from 93.4 to 99.5 %, the lowest value corresponding to P2. CP sequences of AMV-Arg were compared with those of other 25 available isolates, and the phylogenetic analysis based on the CP gene was carried out. The highest percentage of nucleotide sequence identity of the CP gene was 98.3 % with a Chinese isolate and 98.6 % at the amino acid level with four isolates, two from Italy, one from Brazil and the remaining one from China. The phylogenetic analysis showed that AMV-Arg is closely related to subgroup I of AMV isolates. To our knowledge, this is the first report of a complete nucleotide sequence of AMV from South America and the first worldwide report of complete nucleotide sequence of AMV isolated from alfalfa as natural host.
Collapse
Affiliation(s)
- Verónica Trucco
- Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Camino 60 cuadras Km. 5.5, X5020ICA, Córdoba, Argentina
| | | | | | | | | |
Collapse
|
9
|
Arneodo J, de Breuil S, Lenardon S, Conci L. Natural infection of Viola cornuta (Violaceae) with Cucumber mosaic virus, subgroup I. BIOCELL 2005; 29:205-7. [PMID: 16187500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Plants of Viola cornuta displaying typical virus symptoms were observed during spring 2003 in a plant nursery in Córdoba, central Argentina. Electron microscopic examinations of symptomatic leaf samples revealed the presence of isometric virus-like particles about 30 nm in diameter. Subsequent serological analysis allowed the identification of the pathogen as a subgroup I strain of Cucumber mosaic virus (CMV). These results were confirmed by antigen capture--reverse transcription--polymerase chain reaction with specific CMV primers, and digestion with a restriction enzyme. This is the first report of CMV infecting V. cornuta in Argentina.
Collapse
Affiliation(s)
- Joel Arneodo
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
| | | | | | | |
Collapse
|