Use of wild species as sources of resistance to leaf spots in peanuts

Detalhes bibliográficos
Autor(a) principal: Suassuna, Taís de Moraes Falleiro
Data de Publicação: 2020
Outros Autores: Custódio, Adriana Regina, Martins, Kennedy Brunno de Brito, Heuert, Jair, Suassuna, Nelson Dias, Moretzsohn, Márcio de Carvalho
Tipo de documento: Artigo
Idioma: por
Título da fonte: South American Sciences
Texto Completo: https://www.southamericansciences.com.br/index.php/sas/article/view/25
Resumo: ABSTRACT Leaf spots epidemics cause intense defoliation of peanut crop, requiring chemical control with fungicides to avoid yield losses. Some wild species of the genus Arachis have resistance to leaf spots, being sources of resistance genes for introgression in cultivated peanuts. The main goal of this work was to evaluate resistance to leaf spots of progenies derived from resistant wild species in combination with cultivated genotypes, while detecting the presence of genomic segments associated with resistance genes from the wild species. The progenies were evaluated under favorable conditions for leaf spots epidemics with no fungicides sprays. Regular vegetative development, predominantly procumbent was observed in most of the progenies. Some plants in several plots exhibited symptoms of spotted wilt. The line 19-2673 exhibited the lowest severity value (2.94) presenting two segments with resistance genes from A. cardenasii with loci in homozygosis. As a reference, the cultivar IAC OL3, which obtained an average value of 8.88 and complete defoliation. Progenies 19-2675, 19-2674 and 19-2671 did not have complete defoliation of lower leaves, with all loci in heterozygosis. The progenies 19-2688, 19-2687, 19-2680 and 19-2679 did not present the segments of A. cardenasii and had higher intermediate severity and more intense defoliation of the lower and middle thirds of the plants. Progenies with higher severity and greater defoliation did not show the segments of A. cardenasii. Four interspecific progenies were identified, with higher levels of resistance to leaf spots, from the species A. magna, A. batizocoi and A. cardenasii.
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spelling Use of wild species as sources of resistance to leaf spots in peanutsUso de especies silvestres como fuentes de resistencia a la cercosporiosis en el maníUso de espécies silvestres como fontes de resistências às cercosporioses no amendoimArachis hypogaea L.pre-mejoramiento Marcadores MolecularesAlotetraploides sintéticosArachis hypogaea L.Pre-breedingMolecular markersSynthetic allotetraploidsArachis hypogaea L.Pré-melhoramentoMarcadores moleculares Alotetraploides sintéticosABSTRACT Leaf spots epidemics cause intense defoliation of peanut crop, requiring chemical control with fungicides to avoid yield losses. Some wild species of the genus Arachis have resistance to leaf spots, being sources of resistance genes for introgression in cultivated peanuts. The main goal of this work was to evaluate resistance to leaf spots of progenies derived from resistant wild species in combination with cultivated genotypes, while detecting the presence of genomic segments associated with resistance genes from the wild species. The progenies were evaluated under favorable conditions for leaf spots epidemics with no fungicides sprays. Regular vegetative development, predominantly procumbent was observed in most of the progenies. Some plants in several plots exhibited symptoms of spotted wilt. The line 19-2673 exhibited the lowest severity value (2.94) presenting two segments with resistance genes from A. cardenasii with loci in homozygosis. As a reference, the cultivar IAC OL3, which obtained an average value of 8.88 and complete defoliation. Progenies 19-2675, 19-2674 and 19-2671 did not have complete defoliation of lower leaves, with all loci in heterozygosis. The progenies 19-2688, 19-2687, 19-2680 and 19-2679 did not present the segments of A. cardenasii and had higher intermediate severity and more intense defoliation of the lower and middle thirds of the plants. Progenies with higher severity and greater defoliation did not show the segments of A. cardenasii. Four interspecific progenies were identified, with higher levels of resistance to leaf spots, from the species A. magna, A. batizocoi and A. cardenasii.La productividad del maní se puede reducir debido a la aparición de enfermedades de la hoja, lo que requiere, por lo tanto, un control químico con fungicidas para evitar pérdidas. Algunas especies silvestres del género Arachis muestran resistencia a las enfermedades de las hojas, siendo fuentes de genes de resistencia a la introgresión en el maní cultivado. El objetivo de este trabajo fue evaluar la resistencia a la cercosporiosis de las progenies derivadas de especies silvestres en combinación con cepas y monitorear segmentos genómicos de especies silvestres, posiblemente con genes de resistencia a las enfermedades de las hojas en las progenies. Las progenies se probaron en condiciones de alta presión de inóculo de cercosporiosis, sin control con fungicidas y tenían un desarrollo vegetativo normal, predominantemente bajo y plantas con síntomas de mancha anular en varias parcelas. Ninguna progenie mostró resistencia completa a la cercosporiosis. La línea 19-2673 tuvo el valor de gravedad más bajo (2.94) presentando dos segmentos con genes de resistencia de A. cardenasii con loci en homocigosis. Como referencia, el cultivar IAC OL3, que obtuvo un valor promedio de 8.88. Las progenies 19-2675, 19-2674 y 19-2671 no tuvieron una defoliación completa del tercio inferior, con todos los loci en heterocigosis. Las progenies 19-2688, 19-2687, 19-2680 y 19-2679 no presentaron los segmentos de A. cardenasii y tuvieron una severidad intermedia más alta y una defoliación más intensa de los tercios inferior y medio de las plantas. Las progenies con alta severidad y mayor defoliación tampoco mostraron los segmentos de A. cardenasii. Se identificaron cuatro progenies interespecíficas, con mayores niveles de resistencia a la cercosporiosis, de las especies A. magna, A. batizocoi y A. cardenasii.A produtividade de amendoim pode ser reduzida devido a ocorrência de doenças foliares, necessitando, portanto, de controle químico com fungicidas para evitar perdas. Algumas espécies silvestres do gênero Arachis apresentam resistências às doenças foliares, sendo fontes de genes de resistências para introgressão no amendoim cultivado. O trabalho teve como objetivos avaliar a resistência às cercosporioses de progênies derivadas de espécies silvestres em combinação com linhagens e acompanhar os segmentos genômicos oriundos de espécies silvestres, possivelmente com genes de resistência às doenças foliares nas progênies. As progênies foram testadas em condição de alta pressão de inóculo das cercosporioses, sem controle com fungicidas e tiveram desenvolvimento vegetativo normal, porte predominantemente rasteiro e, plantas com sintomas de mancha anelar em diversas parcelas. Nenhuma progênie apresentou resistência completa às cercosporioses. A linhagem 19-2673 obteve o menor valor de severidade (2,94) apresentando dois segmentos com genes de resistência de A. cardenasii com locos em homozigose. Como referência, a cultivar IAC OL3 obteve valores médios de 8,88. As progênies 19-2675, 19-2674 e 19-2671 não tiveram desfolha completa do terço inferior, com todos os locos em heterozigose. As progênies 19-2688, 19-2687, 19-2680 e 19-2679 não apresentaram os segmentos de A. cardenasii e tiveram maior severidade intermediária e desfolha mais intensa dos terços inferior e médio das plantas. As progênies com alta severidade e maior desfolha também não apresentaram os segmentos de A. cardenasii. Foram identificadas quatro progênies interespecíficas, com maiores níveis de resistência às cercosporioses, provenientes das espécies A. magna, A. batizocoi e A. cardenasii.SAS2020-10-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.southamericansciences.com.br/index.php/sas/article/view/2510.17648/sas.v1i2.25South American Sciences; Vol. 1 Núm. 2 (2020): South American Sciences; e2025South American Sciences; v. 1 n. 2 (2020): South American Sciences; e20252675-722210.17648/sas.v1i2reponame:South American Sciencesinstname:Instituto Prosinstacron:PROSporhttps://www.southamericansciences.com.br/index.php/sas/article/view/25/32Copyright (c) 2020 South American Sciencesinfo:eu-repo/semantics/openAccessSuassuna, Taís de Moraes Falleiro Custódio, Adriana Regina Martins, Kennedy Brunno de Brito Heuert, JairSuassuna, Nelson Dias Moretzsohn, Márcio de Carvalho 2020-11-11T04:33:12Zoai:ojs2.southamericansciences.com.br:article/25Revistahttps://www.southamericansciences.com.br/index.php/sasPRIhttps://www.southamericansciences.com.br/index.php/sas/oaisoares-agro@hotmail.com || atenaconsultoriac@gmail.com2675-72222675-7222opendoar:2020-11-11T04:33:12South American Sciences - Instituto Prosfalse
dc.title.none.fl_str_mv Use of wild species as sources of resistance to leaf spots in peanuts
Uso de especies silvestres como fuentes de resistencia a la cercosporiosis en el maní
Uso de espécies silvestres como fontes de resistências às cercosporioses no amendoim
title Use of wild species as sources of resistance to leaf spots in peanuts
spellingShingle Use of wild species as sources of resistance to leaf spots in peanuts
Suassuna, Taís de Moraes Falleiro
Arachis hypogaea L.
pre-mejoramiento
Marcadores Moleculares
Alotetraploides sintéticos
Arachis hypogaea L.
Pre-breeding
Molecular markers
Synthetic allotetraploids
Arachis hypogaea L.
Pré-melhoramento
Marcadores moleculares
Alotetraploides sintéticos
title_short Use of wild species as sources of resistance to leaf spots in peanuts
title_full Use of wild species as sources of resistance to leaf spots in peanuts
title_fullStr Use of wild species as sources of resistance to leaf spots in peanuts
title_full_unstemmed Use of wild species as sources of resistance to leaf spots in peanuts
title_sort Use of wild species as sources of resistance to leaf spots in peanuts
author Suassuna, Taís de Moraes Falleiro
author_facet Suassuna, Taís de Moraes Falleiro
Custódio, Adriana Regina
Martins, Kennedy Brunno de Brito
Heuert, Jair
Suassuna, Nelson Dias
Moretzsohn, Márcio de Carvalho
author_role author
author2 Custódio, Adriana Regina
Martins, Kennedy Brunno de Brito
Heuert, Jair
Suassuna, Nelson Dias
Moretzsohn, Márcio de Carvalho
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Suassuna, Taís de Moraes Falleiro
Custódio, Adriana Regina
Martins, Kennedy Brunno de Brito
Heuert, Jair
Suassuna, Nelson Dias
Moretzsohn, Márcio de Carvalho
dc.subject.por.fl_str_mv Arachis hypogaea L.
pre-mejoramiento
Marcadores Moleculares
Alotetraploides sintéticos
Arachis hypogaea L.
Pre-breeding
Molecular markers
Synthetic allotetraploids
Arachis hypogaea L.
Pré-melhoramento
Marcadores moleculares
Alotetraploides sintéticos
topic Arachis hypogaea L.
pre-mejoramiento
Marcadores Moleculares
Alotetraploides sintéticos
Arachis hypogaea L.
Pre-breeding
Molecular markers
Synthetic allotetraploids
Arachis hypogaea L.
Pré-melhoramento
Marcadores moleculares
Alotetraploides sintéticos
description ABSTRACT Leaf spots epidemics cause intense defoliation of peanut crop, requiring chemical control with fungicides to avoid yield losses. Some wild species of the genus Arachis have resistance to leaf spots, being sources of resistance genes for introgression in cultivated peanuts. The main goal of this work was to evaluate resistance to leaf spots of progenies derived from resistant wild species in combination with cultivated genotypes, while detecting the presence of genomic segments associated with resistance genes from the wild species. The progenies were evaluated under favorable conditions for leaf spots epidemics with no fungicides sprays. Regular vegetative development, predominantly procumbent was observed in most of the progenies. Some plants in several plots exhibited symptoms of spotted wilt. The line 19-2673 exhibited the lowest severity value (2.94) presenting two segments with resistance genes from A. cardenasii with loci in homozygosis. As a reference, the cultivar IAC OL3, which obtained an average value of 8.88 and complete defoliation. Progenies 19-2675, 19-2674 and 19-2671 did not have complete defoliation of lower leaves, with all loci in heterozygosis. The progenies 19-2688, 19-2687, 19-2680 and 19-2679 did not present the segments of A. cardenasii and had higher intermediate severity and more intense defoliation of the lower and middle thirds of the plants. Progenies with higher severity and greater defoliation did not show the segments of A. cardenasii. Four interspecific progenies were identified, with higher levels of resistance to leaf spots, from the species A. magna, A. batizocoi and A. cardenasii.
publishDate 2020
dc.date.none.fl_str_mv 2020-10-14
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.southamericansciences.com.br/index.php/sas/article/view/25
10.17648/sas.v1i2.25
url https://www.southamericansciences.com.br/index.php/sas/article/view/25
identifier_str_mv 10.17648/sas.v1i2.25
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://www.southamericansciences.com.br/index.php/sas/article/view/25/32
dc.rights.driver.fl_str_mv Copyright (c) 2020 South American Sciences
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 South American Sciences
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv SAS
publisher.none.fl_str_mv SAS
dc.source.none.fl_str_mv South American Sciences; Vol. 1 Núm. 2 (2020): South American Sciences; e2025
South American Sciences; v. 1 n. 2 (2020): South American Sciences; e2025
2675-7222
10.17648/sas.v1i2
reponame:South American Sciences
instname:Instituto Pros
instacron:PROS
instname_str Instituto Pros
instacron_str PROS
institution PROS
reponame_str South American Sciences
collection South American Sciences
repository.name.fl_str_mv South American Sciences - Instituto Pros
repository.mail.fl_str_mv soares-agro@hotmail.com || atenaconsultoriac@gmail.com
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