Resistance to thrips (Enneothrips flavens) in wild and amphidiploid Arachis species

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dc.contributor.authorMichelotto, Marcos Doniseti
dc.contributor.authorDe Godoy, Ignacio Jose
dc.contributor.authorPirotta, Melina Zacarelli [UNESP]
dc.contributor.authorDos Santos, João Francisco
dc.contributor.authorFinoto, Everton Luiz
dc.contributor.authorFavero, Alessandra Pereira
dc.contributor.institutionSão Paulo Agency for Agribusiness Technology (APTA)
dc.contributor.institutionAgronomic Institute (IAC)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.date.accessioned2018-12-11T16:47:17Z
dc.date.available2018-12-11T16:47:17Z
dc.date.issued2017-05-01
dc.description.abstractThrips (Enneothrips flavens) is a pest that causes severe damage and yield losses to peanut crop if not properly controlled. The main control method currently used by farmers is biweekly application of insecticides during crop development, which, in addition to its toxicity, is very costly. Thus, new sources of resistance must be identified in order to reduce the use of insecticides and effectively manage the pest. This study aimed to evaluate the occurrence and symptoms of E. flavens infestations in 12 accessions of 10 wild species of Arachis and nine amphidiploids, as well as to compare their morphoagronomic characteristics to those of commercial cultivars. To this end, we conducted experiments during two summer seasons, using a randomized block design with four replications. We conducted evaluations of the severity of infestation, noting visual symptoms of E. flavens and morphological and reproductive characteristics of the Arachis plants. Results indicated that wild accessions V 7635 (A. vallsii), V 13250 (A. kempff-mercadoi), K 9484 (A. batizocoi), Wi 1118 (A. williamsii), V 14167 (A. duranensis) and V 13751 (A. magna) are the most promising for obtaining useful new amphidiploids. Among the amphidiploids, An 12 (A. batizocoi x A. kempff-mercadoi)4x, An 9 (A. gregoryi x A. stenosperma) 4x, and An 8 (A. magna x A. cardenasii)4x showed high level of resistance to E. flavens. The identified thrips resistant wild and amphidiploid Arachis species may be used in future breeding program to produce thrips resistant peanut cultivars.en
dc.description.affiliationPolo Centro Norte São Paulo Agency for Agribusiness Technology (APTA)
dc.description.affiliationAgronomic Institute (IAC)
dc.description.affiliationFaculdade de Ciências Agrarias E Veterina Rias Universidade Estadual Paulista Ju Lio de Mesquita Filho (FCAV/Unesp)
dc.description.affiliationEmbrapa Pecuaria Sudeste
dc.description.affiliationUnespFaculdade de Ciências Agrarias E Veterina Rias Universidade Estadual Paulista Ju Lio de Mesquita Filho (FCAV/Unesp)
dc.identifierhttp://dx.doi.org/10.1371/journal.pone.0176811
dc.identifier.citationPLoS ONE, v. 12, n. 5, 2017.
dc.identifier.doi10.1371/journal.pone.0176811
dc.identifier.file2-s2.0-85019075252.pdf
dc.identifier.issn1932-6203
dc.identifier.scopus2-s2.0-85019075252
dc.identifier.urihttp://hdl.handle.net/11449/169713
dc.language.isoeng
dc.relation.ispartofPLoS ONE
dc.relation.ispartofsjr1,164
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titleResistance to thrips (Enneothrips flavens) in wild and amphidiploid Arachis speciesen
dc.typeArtigo

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