Tomato Yellow Leaf Curl Sardinia Virus, a Begomovirus Species Evolving by Mutation and Recombination: A Challenge for Virus Control
| Autor: | Enrique Moriones, Juan A. Díaz-Pendón, Isabel M. Fortes, Sonia Sánchez-Campos |
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| Přispěvatelé: | Consejo Superior de Investigaciones Científicas (España), Ministerio de Economía y Competitividad (España), European Commission |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine Genotype tomato 01 natural sciences Article Virus Genetic diversity Tomato Evolution Molecular 03 medical and health sciences Solanum lycopersicum Genetic drift Virology Tomato yellow leaf curl virus Phylogeny Plant Diseases Recombination Genetic Genetics biology Begomovirus fungi Genetic Variation Outbreak food and beverages genetic diversity biology.organism_classification recombination Recombination 030104 developmental biology Infectious Diseases Begomoviruses Mutation Leaf curl mutation 010606 plant biology & botany |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Viruses Volume 11 Issue 1 |
| Popis: | The tomato leaf curl disease (TYLCD) is associated with infections of several species of begomoviruses (genus Begomovirus, family Geminiviridae) and causes severe damage to tomatoes throughout tropical and sub-tropical regions of the world. Among others, the Tomato yellow leaf curl Sardinia virus (TYLCSV) species causes damage in the Mediterranean Basin since early outbreaks occurred. Nevertheless, scarce information is available about the diversity of TYLCSV. Here, we study this aspect based on the sequence information accessible in databases. Isolates of two taxonomically differentiated TYLCSV strains can be found in natural epidemics. Their evolution is mostly associated with mutation combined with selection and random genetic drift and also with inter-species recombination which is frequent in begomoviruses. Moreover, a novel putative inter-strain recombinant is reported. Although no significantly new biological behaviour was observed for this latter recombinant, its occurrence supports that as shown for other related begomoviruses, recombination continues to play a central role in the evolution of TYLCD-associated viruses and the dynamism of their populations. The confrontation of resistant tomatoes with isolates of different TYLCD-associated viruses including the novel recombinant demonstrates the existence of a variable virus x plant genotype interaction. This has already been observed for other TYLCD-associated viruses and is a challenge for the control of their impact on tomato production. This work was supported by grant AGL2016-75819-C2-2-R to J. Navas-Castillo and E.M., from the Ministerio de Economía y Competitividad and Ministerio de Economía, Industria y Competitividad, Spain with assistance from the European Regional Development Fund (ERDF) and the European Social Fund (ESF) We acknowledge support by the CSIC Open Access Publication Initiative through its Unit of Information Resources for Research (URICI) |
| Databáze: | OpenAIRE |
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