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Centeno-Parrales JA, Chirinos DT, Kondo T. Trophic networks associated with the aphid, Rhopalosiphum maidis (Fitch) (Hemiptera: Aphididae) in a cornfield, Manabí, Ecuador. Sci agropecu 2022. [DOI: 10.17268/sci.agropecu.2022.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
The corn leaf aphid is considered an important pest associated with maize. This study aimed to discover the trophic associations around Rhopalosiphum maidis in Manabí, Ecuador. Maize leaves were sampled to determine the numbers of parasitized aphids, and the identities of predators and parasitoids. Nine taxa of natural enemies were detected: the primary parasitoid was Lysiphlebus testaceipes Cresson, 1880 (Hymenoptera: Braconidae); the hyperparasitoid Syrphophagus aphidivorus (Mayr, 1876) (Hymenoptera: Encyrtidae); the predatory hoverfly Ocyptamus dimidiatus (Fabricius, 1781) (Diptera: Syrphidae), four species of coccinellids, Cheilomenes sexmaculata (Fabricius, 1781), Cycloneda sanguinea (Linnaeus, 1763), Hippodamia convergens Guerin-Meneville, 1842 and Paraneda pallidula guticollis (Coleoptera: Coccinellidae) and an assassin bug, Zelus sp. (Hemiptera: Reduviidae). A parasitoid, Pachyneuron formosum Walker, 1833 (Hymenoptera: Pteromalidae) emerged from hoverfly pupae. This study reports the presence of the parasitoids S. aphidivorus and P. formosum in Ecuador for the first time. These results increase the knowledge of a four-trophic level relationship (host plant – pest – parasitoids, predators – hyperparasitoids) in a maize agroecosystem as a fundamental basis for biological control programs.
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Muñoz-Ponce S, Corozo-Quiñonez L, Chirinos DT, Garcés-Fiallos FR, Monteros-Altamirano A. Evaluation of Ecuadorian genotypes of Capsicum spp. against infestations of Bemisia tabaci. Rev peru biol 2022. [DOI: 10.15381/rpb.v29i3.22729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
The genus Capsicum, native to tropical and subtropical America, belongs to the Solanaceae family, which includes commercially important vegetables such as chilies and green peppers. The silverleaf whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), causes losses to vegetables including Capsicum species. Among the alternatives of pest control, an effective, economical, and environmentally compatible method is the resistance of the host plant. Infestation by B. tabaci was evaluated in 73 Capsicum genotypes, corresponding to the species C. annuum, C. baccatum, C. sinense, C. frutescens and C. pubescens from an Ecuadorian genebank. Eighty-four percent of the C. baccatum genotypes evaluated showed the highest population densities of B. tabaci, while all the genotypes of C. sinense and C. frutescens had the lowest values (p < 0.05). The non-preference of adults and the scarce oviposition of B. tabaci on genotypes of C. sinense and C. frutescens suggests resistance due to antixenosis. These results could guide breeding programs for the resistance of Capsicum species to B. tabaci infestations.
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Fiallo-Olivé E, Bastidas L, Chirinos DT, Navas-Castillo J. Insights into Emerging Begomovirus-Deltasatellite Complex Diversity: The First Deltasatellite Infecting Legumes. Biology (Basel) 2021; 10:1125. [PMID: 34827118 PMCID: PMC8615175 DOI: 10.3390/biology10111125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/27/2021] [Accepted: 10/29/2021] [Indexed: 11/30/2022]
Abstract
Begomoviruses and associated DNA satellites are involved in pathosystems that include many cultivated and wild dicot plants and the whitefly vector Bemisia tabaci. A survey of leguminous plants, both crops and wild species, was conducted in Venezuela, an understudied country, to determine the presence of begomoviruses. Molecular analysis identified the presence of bipartite begomoviruses in 37% of the collected plants. Four of the six begomoviruses identified constituted novel species, and two others had not been previously reported in Venezuela. In addition, a novel deltasatellite (cabbage leaf curl deltasatellite, CabLCD) was found to be associated with cabbage leaf curl virus (CabLCV) in several plant species. CabLCD was the first deltasatellite found to infect legumes and the first found in the New World to infect a crop plant. Agroinoculation experiments using Nicotiana benthamiana plants and infectious viral clones confirmed that CabLCV acts as a helper virus for CabLCD. The begomovirus-deltasatellite complex described here is also present in wild legume plants, suggesting the possible role of these plants in the emergence and establishment of begomoviral diseases in the main legume crops in the region. Pathological knowledge of these begomovirus-deltasatellite complexes is fundamental to develop control methods to protect leguminous crops from the diseases they cause.
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Affiliation(s)
- Elvira Fiallo-Olivé
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM-UMA-CSIC), Consejo Superior de Investigaciones Científicas, Avenida Dr. Wienberg s/n, 29750 Algarrobo-Costa, Málaga, Spain;
| | - Liseth Bastidas
- Departamento Fitosanitario, Facultad de Agronomía, Universidad del Zulia, Maracaibo 4005, Zulia, Venezuela;
| | - Dorys T. Chirinos
- Facultad de Ingeniería Agronómica, Universidad Técnica de Manabí, Portoviejo 130105, Manabí, Ecuador;
| | - Jesús Navas-Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM-UMA-CSIC), Consejo Superior de Investigaciones Científicas, Avenida Dr. Wienberg s/n, 29750 Algarrobo-Costa, Málaga, Spain;
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Romay G, Chirinos DT, Castro R, Espinoza W, Bragard C. Muntingia yellow spot virus: a novel New World begomovirus infecting Muntingia calabura L. Arch Virol 2021; 166:1759-1762. [PMID: 33745066 DOI: 10.1007/s00705-021-05039-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 03/13/2021] [Indexed: 10/21/2022]
Abstract
The whole genome sequence of a begomovirus (family Geminiviridae) infecting Muntingia calabura L. (family Muntingiaceae) from the province of Guayas in Ecuador was determined in this work. The major symptom observed on this plant species was yellow spots on leaves. The nucleotide sequences of three DNA-A clones and one DNA-B clone were compared to those of other begomoviruses. The DNA-A clones displayed the highest similarity to isolates of pepper leafroll virus (PepLRV), with 87.4 to 88.1% sequence identity. Likewise, the DNA-B clone showed the highest similarity (79.3-79.6% sequence identity) to PepLRV isolates. According to the demarcation criteria for begomovirus species, the begomovirus described in this work, for which we propose the name "muntingia yellow spot virus", represents a novel species. To our best knowledge, this is the first report of a begomovirus infecting a plant of the family Muntingiaceae.
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Affiliation(s)
- Gustavo Romay
- Applied Microbiology, Phytopathology, UCLouvain, Earth and Life Institute, Croix du Sud 2-L07.05.03, 1348, Louvain-la-Neuve, Belgium.
| | - Dorys T Chirinos
- Facultad de Ingeniería Agronómica, Universidad Técnica de Manabí, Manabí, Ecuador
| | - Rossana Castro
- Facultad de Ciencias Agrarias, Universidad Agraria del Ecuador, Guayas, Ecuador
| | - Winston Espinoza
- Facultad de Ciencias Agrarias, Universidad Agraria del Ecuador, Guayas, Ecuador
| | - Claude Bragard
- Applied Microbiology, Phytopathology, UCLouvain, Earth and Life Institute, Croix du Sud 2-L07.05.03, 1348, Louvain-la-Neuve, Belgium
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Chirinos DT, Kondo T. Description and Biological Studies of a New Species of Metaphycus Mercet, 1917 (Hymenoptera: Encyrtidae), A Parasitoid of Capulinia linarosae Kondo & Gullan. Int J Insect Sci 2019; 11:1179543319857962. [PMID: 31320808 PMCID: PMC6610401 DOI: 10.1177/1179543319857962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 05/23/2019] [Indexed: 06/10/2023]
Abstract
The guava cottony scale, Capulinia linarosae Kondo & Gullan (Hemiptera: Eriococcidae), is an important pest of guava, Psidium guajava L. (Myrtaceae) in northern Colombia and Venezuela. A species of Metaphycus (Hymenoptera: Encyrtidae) is the only known primary parasitoid associated with this insect pest. The parasitoid is herein described as M. marensis Chirinos & Kondo, sp. nov., based on morphological characteristics of the adult female and male. Biological studies on adult longevity, fecundity, host preference, and sex ratio were conducted. The maximum longevity of the female and the male were 8.0 and 6.5 days, respectively, when fed with diluted honey. On average, a fed mated female laid approximately 40 eggs. Adult females of M. marensis were shown to prefer to parasitize 11- to 15-day-old adult females of C. linarosae and do not parasitize first-instar nymphs of the host eriococcid. The female-to-male sex ratio of the parasitoid was 2.24: 1. When ovipositing females of M. marensis were given only small-sized individuals (second-instar nymphs) of C. linarosae, generally the resulting progeny was a single male wasp. This parasitoid species has arrhenotokous reproduction and is a facultative gregarious parasitoid. These results show a short adult longevity, as well as a relatively low fecundity of the female compared with studies conducted on other Metaphycus species. This study provides essential baseline information for future biological control programmes for C. linarosae.
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Affiliation(s)
- Dorys T Chirinos
- Facultad de Ingeniería Agronómica,
Universidad Técnica de Manabí, Portoviejo, Manabí, Ecuador
| | - Takumasa Kondo
- Corporación Colombiana de Investigación
Agropecuaria (AGROSAVIA), Centro de Investigación Palmira, Palmira, Colombia
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Romay G, Geraud-Pouey F, Chirinos DT, Mahillon M, Gillis A, Mahillon J, Bragard C. Tomato Twisted Leaf Virus: A Novel Indigenous New World Monopartite Begomovirus Infecting Tomato in Venezuela. Viruses 2019; 11:E327. [PMID: 30987360 PMCID: PMC6521247 DOI: 10.3390/v11040327] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/22/2019] [Accepted: 04/02/2019] [Indexed: 11/17/2022] Open
Abstract
Begomoviruses are one of the major groups of plant viruses with an important economic impact on crop production in tropical and subtropical regions. The global spread of its polyphagous vector, the whitefly Bemisia tabaci, has contributed to the emergence and diversification of species within this genus. In this study, we found a putative novel begomovirus infecting tomato plants in Venezuela without a cognate DNA-B component. This begomovirus was genetically characterized and compared with related species. Furthermore, its infectivity was demonstrated by agroinoculation of infectious clones in tomato (Solanum lycopersicum) and Nicotiana benthamiana plants. The name Tomato twisted leaf virus (ToTLV) is proposed. ToTLV showed the typical genome organization of the DNA-A component of New World bipartite begomoviruses. However, the single DNA component of ToTLV was able to develop systemic infection in tomato and N. benthamiana plants, suggesting a monopartite nature of its genome. Interestingly, an additional open reading frame ORF was observed in ToTLV encompassing the intergenic region and the coat protein gene, which is not present in other closely related begomoviruses. A putative transcript from this region was amplified by strand-specific reverse transcription-PCR. Along with recent studies, our results showed that the diversity of monopartite begomoviruses from the New World is greater than previously thought.
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Affiliation(s)
- Gustavo Romay
- UCLouvain, Earth and Life Institute, Applied Microbiology-Phytopathology, Croix du Sud 2-L07.05.03, 1348 Louvain-la-Neuve, Belgium.
| | - Francis Geraud-Pouey
- La Universidad del Zulia (LUZ), Unidad Técnica Fitosanitaria, Maracaibo 4005, Estado Zulia, Venezuela.
| | - Dorys T Chirinos
- Facultad de Ingeniería Agronómica, Universidad Técnica de Manabí, Manabí 130105, Ecuador.
| | - Mathieu Mahillon
- UCLouvain, Earth and Life Institute, Applied Microbiology-Phytopathology, Croix du Sud 2-L07.05.03, 1348 Louvain-la-Neuve, Belgium.
| | - Annika Gillis
- UCLouvain, Earth and Life Institute, Applied Microbiology-Laboratory of Food and Environmental Microbiology, Croix du Sud 2-L7.05.12, 1348 Louvain-la-Neuve, Belgium.
| | - Jacques Mahillon
- UCLouvain, Earth and Life Institute, Applied Microbiology-Laboratory of Food and Environmental Microbiology, Croix du Sud 2-L7.05.12, 1348 Louvain-la-Neuve, Belgium.
| | - Claude Bragard
- UCLouvain, Earth and Life Institute, Applied Microbiology-Phytopathology, Croix du Sud 2-L07.05.03, 1348 Louvain-la-Neuve, Belgium.
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Romay G, Chirinos DT, Geraud-Pouey F, Gillis A, Mahillon J, Bragard C. Complete genome sequence of two tomato-infecting begomoviruses in Venezuela: evidence of a putative novel species and a novel recombinant strain. Arch Virol 2017; 163:555-558. [PMID: 29058148 DOI: 10.1007/s00705-017-3611-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 09/16/2017] [Indexed: 11/30/2022]
Abstract
At least six begomovirus species have been reported infecting tomato in Venezuela. In this study the complete genomes of two tomato-infecting begomovirus isolates (referred to as Trujillo-427 and Zulia-1084) were cloned and sequenced. Both isolates showed the typical genome organization of New World bipartite begomoviruses, with DNA-A genomic components displaying 88.8% and 90.3% similarity with established begomoviruses, for isolates Trujillo-427 and Zulia-1084, respectively. In accordance to the guidelines for begomovirus species demarcation, the Trujillo-427 isolate represents a putative new species and the name "Tomato wrinkled mosaic virus" is proposed. Meanwhile, Zulia-1084 represents a putative new strain classifiable within species Tomato chlorotic leaf distortion virus, for which a recombinant origin is suggested.
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Affiliation(s)
- Gustavo Romay
- Earth and Life Institute, Applied Microbiology, Phytopathology, Université catholique de Louvain, Croix du Sud 2-L07.05.03, 1348, Louvain-la-Neuve, Belgium
| | - Dorys T Chirinos
- Unidad Técnica Fitosanitaria, La Universidad del Zulia (LUZ), Maracaibo, 4005, Estado Zulia, Venezuela.,Laboratorio de Entomología, Facultad de Ciencias Agrarias, Universidad Agraria del Ecuador, Guayaquil, Ecuador
| | - Francis Geraud-Pouey
- Unidad Técnica Fitosanitaria, La Universidad del Zulia (LUZ), Maracaibo, 4005, Estado Zulia, Venezuela
| | - Annika Gillis
- Laboratory of Food and Environmental Microbiology, Earth and Life Institute, Applied Microbiology, Université catholique de Louvain, Croix du Sud 2-L7.05.12, 1348, Louvain-la-Neuve, Belgium
| | - Jacques Mahillon
- Laboratory of Food and Environmental Microbiology, Earth and Life Institute, Applied Microbiology, Université catholique de Louvain, Croix du Sud 2-L7.05.12, 1348, Louvain-la-Neuve, Belgium
| | - Claude Bragard
- Earth and Life Institute, Applied Microbiology, Phytopathology, Université catholique de Louvain, Croix du Sud 2-L07.05.03, 1348, Louvain-la-Neuve, Belgium.
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Romay G, Chirinos DT, Geraud-Pouey F, Gillis A, Mahillon J, Desbiez C, Bragard C. Molecular and biological characterization of a new Tomato mild yellow leaf curl Aragua virus strain producing severe symptoms in tomato. Virus Genes 2017. [PMID: 28639222 DOI: 10.1007/s11262-017-1478-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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] [Indexed: 11/26/2022]
Abstract
Tomato mild yellow leaf curl Aragua virus (ToMYLCV) is a begomovirus first reported infecting tomato (Solanum lycopersicum) and milkweed (Euphorbia heterophylla) in Venezuela. In this study, a ToMYLCV isolate (Zulia-219) was completely sequenced and its host range was evaluated. The DNA-A and DNA-B components of isolate Zulia-219 showed 93 and 85% nucleotide sequence identity with the respective counterparts of the ToMYLCV type strain. According to current demarcation criteria for begomovirus species, Zulia-219 is a new strain of ToMYLCV. Interestingly, tomato plants inoculated with ToMYLCV Zulia-219 displayed severe symptoms, including severe chlorotic leaf curling, in contrast to mild symptoms associated with the type strain of this begomovirus. These results indicate potential risks associated with this new ToMYLCV strain for tomato production in Venezuela.
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Affiliation(s)
- Gustavo Romay
- Earth and Life Institute, Applied Microbiology - Phytopathology, Université catholique de Louvain, Croix du Sud 2 Bte L07.05.03, 1348, Louvain-la-Neuve, Belgium
| | - Dorys T Chirinos
- Unidad Técnica Fitosanitaria, La Universidad del Zulia (LUZ), Maracaibo, 4005, Estado Zulia, Venezuela
- Laboratorio de Entomología, Facultad de Ciencias Agrarias, Universidad Agraria del Ecuador, Guayaquil, Ecuador
| | - Francis Geraud-Pouey
- Unidad Técnica Fitosanitaria, La Universidad del Zulia (LUZ), Maracaibo, 4005, Estado Zulia, Venezuela
| | - Annika Gillis
- Applied Microbiology - Laboratory of Food and Environmental Microbiology, Earth and Life Institute, Université catholique de Louvain, Croix du Sud 2 Bte L7.05.12, 1348, Louvain-la-Neuve, Belgium
| | - Jacques Mahillon
- Applied Microbiology - Laboratory of Food and Environmental Microbiology, Earth and Life Institute, Université catholique de Louvain, Croix du Sud 2 Bte L7.05.12, 1348, Louvain-la-Neuve, Belgium
| | - Cécile Desbiez
- INRA, UR407 Unité de Pathologie Végétale, 84140, Montfavet, France
| | - Claude Bragard
- Earth and Life Institute, Applied Microbiology - Phytopathology, Université catholique de Louvain, Croix du Sud 2 Bte L07.05.03, 1348, Louvain-la-Neuve, Belgium.
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Fiallo-Olivé E, Chirinos DT, Geraud-Pouey F, Navas-Castillo J. Complete genome sequence of jacquemontia yellow vein virus, a novel begomovirus infecting Jacquemontia tamnifolia in Venezuela. Arch Virol 2017; 162:2463-2466. [PMID: 28434100 DOI: 10.1007/s00705-017-3372-7] [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: 02/27/2017] [Accepted: 04/03/2017] [Indexed: 10/19/2022]
Abstract
Wild plants of the family Convolvulaceae are hosts for a few New World begomoviruses (genus Begomovirus, family Geminiviridae). In this work, we report the complete genome sequence of a new begomovirus infecting the wild convolvulaceous plant Jacquemontia tamnifolia in Venezuela. The cloned bipartite genome showed the organization of typical New World begomoviruses and was found to be phylogenetically related to those of begomoviruses from Venezuela and other Caribbean countries. Several recombination events have been shown to have occurred involving genome fragment exchange with related begomoviruses infecting crops such as tomato and cucurbits and wild plants, including Jacquemontia sp. We propose the name jacquemontia yellow vein virus (JacYVV) for this new begomovirus.
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Affiliation(s)
- Elvira Fiallo-Olivé
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Estación Experimental "La Mayora", 29750, Algarrobo-Costa, Málaga, Spain.
| | - Dorys T Chirinos
- Unidad Técnica Fitosanitaria, Facultad de Agronomía, Universidad del Zulia, Maracaibo, 4005, Zulia, Venezuela.,Laboratorio de Entomología, Facultad de Ciencias Agrarias, Universidad Agraria del Ecuador, Guayaquil, Ecuador
| | - Francis Geraud-Pouey
- Unidad Técnica Fitosanitaria, Facultad de Agronomía, Universidad del Zulia, Maracaibo, 4005, Zulia, Venezuela
| | - Jesús Navas-Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Estación Experimental "La Mayora", 29750, Algarrobo-Costa, Málaga, Spain
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Fiallo-Olivé E, Chirinos DT, Geraud-Pouey F, Moriones E, Navas-Castillo J. Complete genome sequence of Jacquemontia yellow mosaic virus, a novel begomovirus from Venezuela related to other New World bipartite begomoviruses infecting Convolvulaceae. Arch Virol 2014; 159:1857-60. [PMID: 24463954 DOI: 10.1007/s00705-014-1996-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 01/17/2014] [Indexed: 11/24/2022]
Abstract
The complete genome of a bipartite begomovirus (genus Begomovirus, family Geminiviridae) infecting Jacquemontia sp. (Convolvulaceae) in Venezuela has been cloned and sequenced. Sequence comparison and phylogenetic analysis have shown that it represents an isolate of a novel species with closest relatives being two New World bipartite begomoviruses that infect Convolvulaceae, Jacquemontia mosaic Yucatan virus and Merremia mosaic virus. The DNA-As of these begomoviruses, however, share only 77.0-78.4 % nucleotide sequence identity with the DNA-A of the isolate described here, for which a recombinant origin is suggested. Based on the symptoms observed in the field, the name Jacquemontia yellow mosaic virus (JacYMV) is proposed for this novel bipartite begomovirus.
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Affiliation(s)
- Elvira Fiallo-Olivé
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora, Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Estación Experimental La Mayora, Algarrobo-Costa, 29750, Málaga, Spain
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Fiallo-Olivé E, Márquez-Martín B, Hassan I, Chirinos DT, Geraud-Pouey F, Navas-Castillo J, Moriones E. Complete genome sequences of two novel begomoviruses infecting common bean in Venezuela. Arch Virol 2012. [PMID: 23178970 DOI: 10.1007/s00705-012-1545-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The complete genome sequences of isolates of two new bipartite begomoviruses (genus Begomovirus, family Geminiviridae) found infecting common bean in Venezuela are provided. The names proposed for each of these viruses are "bean yellow chlorosis virus" (BYCV) and "bean white chlorosis mosaic virus" (BWCMV). Phylogenetic analysis showed that they segregated in two distinct clades of New World begomoviruses. This is the first report of begomoviruses infecting common bean in Venezuela.
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Affiliation(s)
- Elvira Fiallo-Olivé
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Consejo Superior de Investigaciones Científicas, Estación Experimental "La Mayora", Algarrobo-Costa, 29750 Málaga, Spain
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12
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Fiallo-Olivé E, Chirinos DT, Geraud-Pouey F, Moriones E, Navas-Castillo J. Complete genome sequences of two begomoviruses infecting weeds in Venezuela. Arch Virol 2012; 158:277-80. [PMID: 22926716 DOI: 10.1007/s00705-012-1451-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Accepted: 07/11/2012] [Indexed: 10/28/2022]
Abstract
The complete sequences of isolates of two new bipartite begomoviruses (genus Begomovirus, family Geminiviridae) found infecting weeds in Venezuela are provided. The names proposed for these new begomoviruses are "Datura leaf distortion virus" (DLDV), isolated from a Datura stramonium L. (family Solanaceae) plant, and "Dalechampia chlorotic mosaic virus" (DCMV), isolated from infected Dalechampia sp. (family Euphorbiaceae) and Boerhavia diffusa L. (family Nyctaginaceae) plants. Phylogenetic analysis showed that these new begomoviruses segregated in two distinct clades of New World begomoviruses. To our knowledge, this is the first record of a begomovirus infecting Dalechampia sp. plants. Also, this is the first report of a begomovirus infecting Boerhavia spp. and Datura spp. in Venezuela.
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Affiliation(s)
- Elvira Fiallo-Olivé
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Consejo Superior de Investigaciones Científicas, Estación Experimental "La Mayora", 29750 Algarrobo-Costa, Málaga, Spain
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Romay G, Geraud-Pouey F, Chirinos DT, Morales F, Herrera E, Fernández C, Martínez AK. [Transmission of tomato Venezuela virus by Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), in Maracaibo, Venezuela]. Neotrop Entomol 2010; 39:266-274. [PMID: 20498966 DOI: 10.1590/s1519-566x2010000200019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2007] [Accepted: 11/16/2009] [Indexed: 05/29/2023]
Abstract
The biological transmission of Tomato Venezuela virus (ToVEV) by biotype B of the whitefly species Bemisia tabaci (Gennadius) increased (21.7-95.0%), and the time for symptom expression decreased (16-12.6 days) as the number of viruliferous whiteflies allowed access for inoculation to susceptible tomato plants increased from 1 to 20 adults/plant. When acquired only as a nymph, adults of this biotype transmitted the virus to 88.3% of susceptible tomato plants, using 15 viruliferous individuals per test plant, corroborating the circulative nature of the transmission. Disease incidence further increased (up to 100%) when the individuals were allowed to feed again on a virus-infected plant as adults. Leaf area, plant height and dry matter were significantly affected in ToVEV infected tomato plants.
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Affiliation(s)
- Gustavo Romay
- Lab. de Biotecnología VegetaI, Instituto de Estudios Avanzados, Caracas, Venezuela.
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