Genetic entanglement between Cercospora species associating soybean purple seed stain
Soybean purple seed stain (S-PSS) is a destructive, worldwide distributed fungal disease caused by several Cercospora species. This work aims to shed light on the nature of the genealogical and genetic relationships amongst S-PSS causal agents. Fungal isolates were obtained from Argentina and Brazil...
| Autores principales: | , , , |
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| Formato: | info:eu-repo/semantics/article |
| Lenguaje: | Inglés |
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2017
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/939 https://link.springer.com/article/10.1007/s11557-017-1289-x https://doi.org/10.1007/s11557-017-1289-x |
| _version_ | 1855034732772851712 |
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| author | Guillin, Eduardo Alejandro Olivera, Luiz Orlando Grijalba, Pablo Enrique Gottlieb, Alexandra Marina |
| author_browse | Gottlieb, Alexandra Marina Grijalba, Pablo Enrique Guillin, Eduardo Alejandro Olivera, Luiz Orlando |
| author_facet | Guillin, Eduardo Alejandro Olivera, Luiz Orlando Grijalba, Pablo Enrique Gottlieb, Alexandra Marina |
| author_sort | Guillin, Eduardo Alejandro |
| collection | INTA Digital |
| description | Soybean purple seed stain (S-PSS) is a destructive, worldwide distributed fungal disease caused by several Cercospora species. This work aims to shed light on the nature of the genealogical and genetic relationships amongst S-PSS causal agents. Fungal isolates were obtained from Argentina and Brazil, which belong to the leading countries in soybean production worldwide. DNA sequences were obtained from eight loci across the collection of isolates. Relationships were evaluated through Bayesian phylogenetic inferences, and distance and character-based network analyses and discriminant analyses. The occurrence of reticulate evolutionary events was tested with recombination tests. The high haplotype diversity (H = 1.0) was arranged in four validated haplogroups. Reticulate network topologies were evident, and 11 recombination events were validated through several tests. Five of these events occurred across species boundaries. Comparison with sequences from 70 Cercospora species indicated that at least five monophyletic groups of S-PSS-causing agents are currently present in South America. The provided evidence supports the hypothesis that interspecific genetic exchange plays a significant role in the evolutionary dynamics of Cercospora species in this region. The occurrence of interspecific recombination has implications for understanding epidemiological threats to soybean production that appear to be more serious than previously anticipated. |
| format | info:eu-repo/semantics/article |
| id | INTA939 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA9392019-02-01T17:17:45Z Genetic entanglement between Cercospora species associating soybean purple seed stain Guillin, Eduardo Alejandro Olivera, Luiz Orlando Grijalba, Pablo Enrique Gottlieb, Alexandra Marina Genética Cercospora Soja Enfermedades de las Plantas Genetics Soybeans Plant Diseases Soybean purple seed stain (S-PSS) is a destructive, worldwide distributed fungal disease caused by several Cercospora species. This work aims to shed light on the nature of the genealogical and genetic relationships amongst S-PSS causal agents. Fungal isolates were obtained from Argentina and Brazil, which belong to the leading countries in soybean production worldwide. DNA sequences were obtained from eight loci across the collection of isolates. Relationships were evaluated through Bayesian phylogenetic inferences, and distance and character-based network analyses and discriminant analyses. The occurrence of reticulate evolutionary events was tested with recombination tests. The high haplotype diversity (H = 1.0) was arranged in four validated haplogroups. Reticulate network topologies were evident, and 11 recombination events were validated through several tests. Five of these events occurred across species boundaries. Comparison with sequences from 70 Cercospora species indicated that at least five monophyletic groups of S-PSS-causing agents are currently present in South America. The provided evidence supports the hypothesis that interspecific genetic exchange plays a significant role in the evolutionary dynamics of Cercospora species in this region. The occurrence of interspecific recombination has implications for understanding epidemiological threats to soybean production that appear to be more serious than previously anticipated. Inst. de Genética "Ewald A. Favret"- IGEAF Fil: Guillin, Eduardo Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Olivera, Luiz Orlando. Universidade Federal de Viçosa. Departamento de Bioquímica e Biologia Molecular; Brasil Fil: Grijalba, Pablo E. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fitopatología; Argentina Fil: Gottlieb, Alexandra Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina 2017-08-09T18:12:51Z 2017-08-09T18:12:51Z 2017-06 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/939 https://link.springer.com/article/10.1007/s11557-017-1289-x 1861-8952 (Online) 1617-416X (Print) https://doi.org/10.1007/s11557-017-1289-x eng info:eu-repo/semantics/restrictedAccess application/pdf Mycological progress 16 (6) : 593–603. (jun. 2017) |
| spellingShingle | Genética Cercospora Soja Enfermedades de las Plantas Genetics Soybeans Plant Diseases Guillin, Eduardo Alejandro Olivera, Luiz Orlando Grijalba, Pablo Enrique Gottlieb, Alexandra Marina Genetic entanglement between Cercospora species associating soybean purple seed stain |
| title | Genetic entanglement between Cercospora species associating soybean purple seed stain |
| title_full | Genetic entanglement between Cercospora species associating soybean purple seed stain |
| title_fullStr | Genetic entanglement between Cercospora species associating soybean purple seed stain |
| title_full_unstemmed | Genetic entanglement between Cercospora species associating soybean purple seed stain |
| title_short | Genetic entanglement between Cercospora species associating soybean purple seed stain |
| title_sort | genetic entanglement between cercospora species associating soybean purple seed stain |
| topic | Genética Cercospora Soja Enfermedades de las Plantas Genetics Soybeans Plant Diseases |
| url | http://hdl.handle.net/20.500.12123/939 https://link.springer.com/article/10.1007/s11557-017-1289-x https://doi.org/10.1007/s11557-017-1289-x |
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