Evidência de que o fungo Rhizoctonia solani AG-1 IA adaptado à Urochloa na Colômbia mantém ampla gama de hospedeiros incluindo o milho
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/0100-5405/2176 http://hdl.handle.net/11449/178270 |
Resumo: | The fungus Rhizoctonia solani anastomosis group AG-1 IA has emerged as an important pathogen associated with foliar blight, collar rot and death of Urochloa (Brachiaria) forage pastures in South America. This study aimed to determine whether the adaptation of R. solani AG-1 IA to Urochloa spp. in Colombia promoted phenotypic differences in aggressiveness to distinct hosts. Our hypothesis was that the pathogen populations adapted to Urochloa spp. are not host-specialized and hence are not genetically isolated, thereby maintaining a broad host range, including the fabaceous plants cowpea and soybeans. We also determined whether two groups of isolates from populations of R. solani AG-1 IA sampled from Urochloa in Colombia have adaptive potential to emerge as maize pathogens. Besides the levels of disease severity in different hosts, we also determined the components of evolvability, such as the coefficient of genotypic variance (IG), the environmental variance (IE) and the heritability (h2). We concluded that: i) The adaptation of R. solani AG-1 IA to Urochloa spp. did not cause any phenotypic differences in aggressiveness to distinct hosts and therefore the pathogen maintains a broad host range. ii) The population of R. solani AG-1 IA from Urochloa hybrid Mulato in Colombia has adaptive potential to emerge as a maize pathogen. |
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Evidência de que o fungo Rhizoctonia solani AG-1 IA adaptado à Urochloa na Colômbia mantém ampla gama de hospedeiros incluindo o milhoEvidence that the fungus Rhizoctonia solani AG-1 IA adapted to Urochloa in Colombia keeps a broad host range including maizeEmerging pathogens in agricultureForage diseasesGenetic divergencePathogenic adaptabilityUrochloa foliar blightThe fungus Rhizoctonia solani anastomosis group AG-1 IA has emerged as an important pathogen associated with foliar blight, collar rot and death of Urochloa (Brachiaria) forage pastures in South America. This study aimed to determine whether the adaptation of R. solani AG-1 IA to Urochloa spp. in Colombia promoted phenotypic differences in aggressiveness to distinct hosts. Our hypothesis was that the pathogen populations adapted to Urochloa spp. are not host-specialized and hence are not genetically isolated, thereby maintaining a broad host range, including the fabaceous plants cowpea and soybeans. We also determined whether two groups of isolates from populations of R. solani AG-1 IA sampled from Urochloa in Colombia have adaptive potential to emerge as maize pathogens. Besides the levels of disease severity in different hosts, we also determined the components of evolvability, such as the coefficient of genotypic variance (IG), the environmental variance (IE) and the heritability (h2). We concluded that: i) The adaptation of R. solani AG-1 IA to Urochloa spp. did not cause any phenotypic differences in aggressiveness to distinct hosts and therefore the pathogen maintains a broad host range. ii) The population of R. solani AG-1 IA from Urochloa hybrid Mulato in Colombia has adaptive potential to emerge as a maize pathogen.UNESP (Universidade Estadual Paulista), Campus de Ilha SolteiraUNESP, Campus de JaboticabalUNINCCA (Universidad INCA de Colombia)UNESP (Universidade Estadual Paulista), Campus de Ilha SolteiraUNESP, Campus de JaboticabalUniversidade Estadual Paulista (Unesp)UNINCCA (Universidad INCA de Colombia)Poloni, Nadia Maria [UNESP]Molina, Lina Maria Ramos [UNESP]Mesa, Edisson Chavarro [UNESP]Garcia, Izabela Lopes [UNESP]Ceresini, Paulo Cezar [UNESP]2018-12-11T17:29:34Z2018-12-11T17:29:34Z2016-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article228-232application/pdfhttp://dx.doi.org/10.1590/0100-5405/2176Summa Phytopathologica, v. 42, n. 3, p. 228-232, 2016.0100-5405http://hdl.handle.net/11449/17827010.1590/0100-5405/2176S0100-540520160003002282-s2.0-84987781490S0100-54052016000300228.pdf26350920583008540000-0003-2381-2792Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporSumma Phytopathologica0,258info:eu-repo/semantics/openAccess2023-10-12T06:02:42Zoai:repositorio.unesp.br:11449/178270Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-12T06:02:42Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Evidência de que o fungo Rhizoctonia solani AG-1 IA adaptado à Urochloa na Colômbia mantém ampla gama de hospedeiros incluindo o milho Evidence that the fungus Rhizoctonia solani AG-1 IA adapted to Urochloa in Colombia keeps a broad host range including maize |
title |
Evidência de que o fungo Rhizoctonia solani AG-1 IA adaptado à Urochloa na Colômbia mantém ampla gama de hospedeiros incluindo o milho |
spellingShingle |
Evidência de que o fungo Rhizoctonia solani AG-1 IA adaptado à Urochloa na Colômbia mantém ampla gama de hospedeiros incluindo o milho Poloni, Nadia Maria [UNESP] Emerging pathogens in agriculture Forage diseases Genetic divergence Pathogenic adaptability Urochloa foliar blight |
title_short |
Evidência de que o fungo Rhizoctonia solani AG-1 IA adaptado à Urochloa na Colômbia mantém ampla gama de hospedeiros incluindo o milho |
title_full |
Evidência de que o fungo Rhizoctonia solani AG-1 IA adaptado à Urochloa na Colômbia mantém ampla gama de hospedeiros incluindo o milho |
title_fullStr |
Evidência de que o fungo Rhizoctonia solani AG-1 IA adaptado à Urochloa na Colômbia mantém ampla gama de hospedeiros incluindo o milho |
title_full_unstemmed |
Evidência de que o fungo Rhizoctonia solani AG-1 IA adaptado à Urochloa na Colômbia mantém ampla gama de hospedeiros incluindo o milho |
title_sort |
Evidência de que o fungo Rhizoctonia solani AG-1 IA adaptado à Urochloa na Colômbia mantém ampla gama de hospedeiros incluindo o milho |
author |
Poloni, Nadia Maria [UNESP] |
author_facet |
Poloni, Nadia Maria [UNESP] Molina, Lina Maria Ramos [UNESP] Mesa, Edisson Chavarro [UNESP] Garcia, Izabela Lopes [UNESP] Ceresini, Paulo Cezar [UNESP] |
author_role |
author |
author2 |
Molina, Lina Maria Ramos [UNESP] Mesa, Edisson Chavarro [UNESP] Garcia, Izabela Lopes [UNESP] Ceresini, Paulo Cezar [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) UNINCCA (Universidad INCA de Colombia) |
dc.contributor.author.fl_str_mv |
Poloni, Nadia Maria [UNESP] Molina, Lina Maria Ramos [UNESP] Mesa, Edisson Chavarro [UNESP] Garcia, Izabela Lopes [UNESP] Ceresini, Paulo Cezar [UNESP] |
dc.subject.por.fl_str_mv |
Emerging pathogens in agriculture Forage diseases Genetic divergence Pathogenic adaptability Urochloa foliar blight |
topic |
Emerging pathogens in agriculture Forage diseases Genetic divergence Pathogenic adaptability Urochloa foliar blight |
description |
The fungus Rhizoctonia solani anastomosis group AG-1 IA has emerged as an important pathogen associated with foliar blight, collar rot and death of Urochloa (Brachiaria) forage pastures in South America. This study aimed to determine whether the adaptation of R. solani AG-1 IA to Urochloa spp. in Colombia promoted phenotypic differences in aggressiveness to distinct hosts. Our hypothesis was that the pathogen populations adapted to Urochloa spp. are not host-specialized and hence are not genetically isolated, thereby maintaining a broad host range, including the fabaceous plants cowpea and soybeans. We also determined whether two groups of isolates from populations of R. solani AG-1 IA sampled from Urochloa in Colombia have adaptive potential to emerge as maize pathogens. Besides the levels of disease severity in different hosts, we also determined the components of evolvability, such as the coefficient of genotypic variance (IG), the environmental variance (IE) and the heritability (h2). We concluded that: i) The adaptation of R. solani AG-1 IA to Urochloa spp. did not cause any phenotypic differences in aggressiveness to distinct hosts and therefore the pathogen maintains a broad host range. ii) The population of R. solani AG-1 IA from Urochloa hybrid Mulato in Colombia has adaptive potential to emerge as a maize pathogen. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-07-01 2018-12-11T17:29:34Z 2018-12-11T17:29:34Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/0100-5405/2176 Summa Phytopathologica, v. 42, n. 3, p. 228-232, 2016. 0100-5405 http://hdl.handle.net/11449/178270 10.1590/0100-5405/2176 S0100-54052016000300228 2-s2.0-84987781490 S0100-54052016000300228.pdf 2635092058300854 0000-0003-2381-2792 |
url |
http://dx.doi.org/10.1590/0100-5405/2176 http://hdl.handle.net/11449/178270 |
identifier_str_mv |
Summa Phytopathologica, v. 42, n. 3, p. 228-232, 2016. 0100-5405 10.1590/0100-5405/2176 S0100-54052016000300228 2-s2.0-84987781490 S0100-54052016000300228.pdf 2635092058300854 0000-0003-2381-2792 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Summa Phytopathologica 0,258 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
228-232 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1803045946334904320 |