Adaptive potential of rhizoctonia solani AG-1 IA populations associated with rice and urochloa brizantha for thermal stress
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/0100-5405/185143 http://hdl.handle.net/11449/201273 |
Resumo: | A large number of widely distributed plant pathogens such as the phytopathogenic fungi of the genus Rhizoctonia are subject to extreme temperature fluctuations in their habitats. To survive such thermal fluctuations, these organisms have developed the capability of regulating their phenotypic values for specific thermal adaptations and to other specific environmental variations. The objective of this study was to determine the effects of thermal stress on the evolvability for mycelial growth in two host-distinct populations of Rhizoctonia solani AG-1 IA infecting either rice (OS6) or Urochloa (BBT1), and to compare them with a population of R. oryzae-sativae from rice (OS5), a species adapted to higher temperatures. The populations were subjected to two growth temperatures: 25°C and 35°C (optimal and stress temperatures for R. solani AG-1 IA). Based on mycelial growth, estimates of genotypic variance (IG), environmental variance (IE) and broad sense heritability (h2) were determined as measures of evolvability. The population OS5 of R. oryzae-sativae was almost not influenced by temperature stress, while at 35°C there was a reduction in h2 for the populations BBT1 and OS6 of R. solani AG-1 IA. However, the relatively high h2 values for mycelial growth at 35°C (0.63 ± 0.07) indicate that both populations BBT1 and OS6 of R. solani AG-1 IA have potential for adaptation to temperature stress. |
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Adaptive potential of rhizoctonia solani AG-1 IA populations associated with rice and urochloa brizantha for thermal stressPotencial adaptativo de populações de rhizoctonia solani AG-1 IA associadas ao arroz e à urochloa brizantha ao estresse térmicoEnvironmental stressEvolvabilityGenetic varianceThermal adaptationA large number of widely distributed plant pathogens such as the phytopathogenic fungi of the genus Rhizoctonia are subject to extreme temperature fluctuations in their habitats. To survive such thermal fluctuations, these organisms have developed the capability of regulating their phenotypic values for specific thermal adaptations and to other specific environmental variations. The objective of this study was to determine the effects of thermal stress on the evolvability for mycelial growth in two host-distinct populations of Rhizoctonia solani AG-1 IA infecting either rice (OS6) or Urochloa (BBT1), and to compare them with a population of R. oryzae-sativae from rice (OS5), a species adapted to higher temperatures. The populations were subjected to two growth temperatures: 25°C and 35°C (optimal and stress temperatures for R. solani AG-1 IA). Based on mycelial growth, estimates of genotypic variance (IG), environmental variance (IE) and broad sense heritability (h2) were determined as measures of evolvability. The population OS5 of R. oryzae-sativae was almost not influenced by temperature stress, while at 35°C there was a reduction in h2 for the populations BBT1 and OS6 of R. solani AG-1 IA. However, the relatively high h2 values for mycelial growth at 35°C (0.63 ± 0.07) indicate that both populations BBT1 and OS6 of R. solani AG-1 IA have potential for adaptation to temperature stress.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Ministério da Ciência e TecnologiaUniversidade Estadual Paulista – UNESP Campus de Ilha SolteiraUniversidad de Los Llanos, MetaUniversidade Estadual Paulista – UNESP Campus de Ilha SolteiraCNPq: 140564/2009-8FAPESP: 2010/15704-5FAPESP: 2013/11944-0CNPq: 307361/2012-8CNPq: 481756/2010-8Ministério da Ciência e Tecnologia: 481756/2010-8Universidade Estadual Paulista (Unesp)Universidad de Los LlanosRamos-Molina, Lina Maria [UNESP]Ceresini, Paulo Cezar [UNESP]Vicentini, Samara Nunes Campos [UNESP]Pereira, Danilo Augusto dos Santos [UNESP]Conceição, Grace Ingrid [UNESP]Silva-Herrera, María del Rosariodos Santos, Pedro César [UNESP]2020-12-12T02:28:24Z2020-12-12T02:28:24Z2019-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article320-325application/pdfhttp://dx.doi.org/10.1590/0100-5405/185143Summa Phytopathologica, v. 45, n. 3, p. 320-325, 2019.0100-5405http://hdl.handle.net/11449/20127310.1590/0100-5405/185143S0100-540520190003003202-s2.0-85073993452S0100-54052019000300320.pdf26350920583008540000-0003-2381-2792Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporSumma Phytopathologicainfo:eu-repo/semantics/openAccess2024-07-05T18:12:41Zoai:repositorio.unesp.br:11449/201273Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:16:26.940782Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Adaptive potential of rhizoctonia solani AG-1 IA populations associated with rice and urochloa brizantha for thermal stress Potencial adaptativo de populações de rhizoctonia solani AG-1 IA associadas ao arroz e à urochloa brizantha ao estresse térmico |
title |
Adaptive potential of rhizoctonia solani AG-1 IA populations associated with rice and urochloa brizantha for thermal stress |
spellingShingle |
Adaptive potential of rhizoctonia solani AG-1 IA populations associated with rice and urochloa brizantha for thermal stress Ramos-Molina, Lina Maria [UNESP] Environmental stress Evolvability Genetic variance Thermal adaptation |
title_short |
Adaptive potential of rhizoctonia solani AG-1 IA populations associated with rice and urochloa brizantha for thermal stress |
title_full |
Adaptive potential of rhizoctonia solani AG-1 IA populations associated with rice and urochloa brizantha for thermal stress |
title_fullStr |
Adaptive potential of rhizoctonia solani AG-1 IA populations associated with rice and urochloa brizantha for thermal stress |
title_full_unstemmed |
Adaptive potential of rhizoctonia solani AG-1 IA populations associated with rice and urochloa brizantha for thermal stress |
title_sort |
Adaptive potential of rhizoctonia solani AG-1 IA populations associated with rice and urochloa brizantha for thermal stress |
author |
Ramos-Molina, Lina Maria [UNESP] |
author_facet |
Ramos-Molina, Lina Maria [UNESP] Ceresini, Paulo Cezar [UNESP] Vicentini, Samara Nunes Campos [UNESP] Pereira, Danilo Augusto dos Santos [UNESP] Conceição, Grace Ingrid [UNESP] Silva-Herrera, María del Rosario dos Santos, Pedro César [UNESP] |
author_role |
author |
author2 |
Ceresini, Paulo Cezar [UNESP] Vicentini, Samara Nunes Campos [UNESP] Pereira, Danilo Augusto dos Santos [UNESP] Conceição, Grace Ingrid [UNESP] Silva-Herrera, María del Rosario dos Santos, Pedro César [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidad de Los Llanos |
dc.contributor.author.fl_str_mv |
Ramos-Molina, Lina Maria [UNESP] Ceresini, Paulo Cezar [UNESP] Vicentini, Samara Nunes Campos [UNESP] Pereira, Danilo Augusto dos Santos [UNESP] Conceição, Grace Ingrid [UNESP] Silva-Herrera, María del Rosario dos Santos, Pedro César [UNESP] |
dc.subject.por.fl_str_mv |
Environmental stress Evolvability Genetic variance Thermal adaptation |
topic |
Environmental stress Evolvability Genetic variance Thermal adaptation |
description |
A large number of widely distributed plant pathogens such as the phytopathogenic fungi of the genus Rhizoctonia are subject to extreme temperature fluctuations in their habitats. To survive such thermal fluctuations, these organisms have developed the capability of regulating their phenotypic values for specific thermal adaptations and to other specific environmental variations. The objective of this study was to determine the effects of thermal stress on the evolvability for mycelial growth in two host-distinct populations of Rhizoctonia solani AG-1 IA infecting either rice (OS6) or Urochloa (BBT1), and to compare them with a population of R. oryzae-sativae from rice (OS5), a species adapted to higher temperatures. The populations were subjected to two growth temperatures: 25°C and 35°C (optimal and stress temperatures for R. solani AG-1 IA). Based on mycelial growth, estimates of genotypic variance (IG), environmental variance (IE) and broad sense heritability (h2) were determined as measures of evolvability. The population OS5 of R. oryzae-sativae was almost not influenced by temperature stress, while at 35°C there was a reduction in h2 for the populations BBT1 and OS6 of R. solani AG-1 IA. However, the relatively high h2 values for mycelial growth at 35°C (0.63 ± 0.07) indicate that both populations BBT1 and OS6 of R. solani AG-1 IA have potential for adaptation to temperature stress. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-07-01 2020-12-12T02:28:24Z 2020-12-12T02:28:24Z |
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/10.1590/0100-5405/185143 Summa Phytopathologica, v. 45, n. 3, p. 320-325, 2019. 0100-5405 http://hdl.handle.net/11449/201273 10.1590/0100-5405/185143 S0100-54052019000300320 2-s2.0-85073993452 S0100-54052019000300320.pdf 2635092058300854 0000-0003-2381-2792 |
url |
http://dx.doi.org/10.1590/0100-5405/185143 http://hdl.handle.net/11449/201273 |
identifier_str_mv |
Summa Phytopathologica, v. 45, n. 3, p. 320-325, 2019. 0100-5405 10.1590/0100-5405/185143 S0100-54052019000300320 2-s2.0-85073993452 S0100-54052019000300320.pdf 2635092058300854 0000-0003-2381-2792 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Summa Phytopathologica |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
320-325 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 |
|
_version_ |
1808128492538167296 |