Selection of cowpea (Vigna unguiculata [L.] Walp) accessions resistant to root-knot nematode

Silva, Thais França; Peixoto, Gustavo Henrique Silva; Souza, Caio Felipe de Barros; Roberts, Philip Alan; Santos, Jansen Rodrigo Pereira; Cares, Juvenil Enrique

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Campo DC	Valor	Idioma
dc.contributor.author	Silva, Thais França	-
dc.contributor.author	Peixoto, Gustavo Henrique Silva	-
dc.contributor.author	Souza, Caio Felipe de Barros	-
dc.contributor.author	Roberts, Philip Alan	-
dc.contributor.author	Santos, Jansen Rodrigo Pereira	-
dc.contributor.author	Cares, Juvenil Enrique	-
dc.date.accessioned	2024-06-17T15:34:21Z	-
dc.date.available	2024-06-17T15:34:21Z	-
dc.date.issued	2023-05-02	-
dc.identifier.citation	SILVA, Thais França S. et al. Selection of cowpea (Vigna unguiculata [L.] Walp) accessions resistant to root-knot nematode. Crop Science, [S. l.], v. 63, p. 2067–2078, 2023. DOI: https://doi.org/10.1002/csc2.20982.	pt_BR
dc.identifier.uri	http://repositorio2.unb.br/jspui/handle/10482/48284	-
dc.language.iso	eng	pt_BR
dc.publisher	Wiley	pt_BR
dc.rights	Acesso Restrito	pt_BR
dc.title	Selection of cowpea (Vigna unguiculata [L.] Walp) accessions resistant to root-knot nematode	pt_BR
dc.type	Artigo	pt_BR
dc.subject.keyword	Feijão - doenças e pragas	pt_BR
dc.subject.keyword	Nematóide das galhas	pt_BR
dc.identifier.doi	https://doi.org/10.1002/csc2.20982	pt_BR
dc.relation.publisherversion	https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/csc2.20982	pt_BR
dc.description.abstract1	Cowpea, Vigna unguiculata, is a legume adapted to regions with a tropical climate and limited water resources, and it has become a basic food source and income gener ator. Root-knot nematodes (Meloidogyne spp.) cause substantial damage to the root system, resulting in yield losses. Genetic resistance is one of the most efficient man agement methods. The objective of this study was to generate information on genetic resistance to Meloidogyne incognita and Meloidogyne javanica of Brazilian cowpea genotypes. For this, 18 accessions of cowpea from the collection of Embrapa Meio Norte and six control accessions of cowpea were tested in completely randomized design with six replications, evaluated 60 days after inoculation, and carried out twice in time. To assess root penetration of nematodes and root gall formation in NIL-CB3- isoline, which allows reproduction but limits gall formation, nematodes inside the roots were stained with acid fuchsin, after inoculation with 5000 J2, with estimates at 72 h time-points up to 28 days. None of the 18 accessions from Embrapa showed resistance to M. javanica, but accessions MNC06-895-1, MNC04-14, MNC06-909- 6, 98, MNCO4-907-35, and Am60-15 showed resistance to M. incognita. There was a reduction in the number and size of galls in the NIL-CB3 egg isoline, and an increase in formation of males, which are not important for parasitism. Given the importance and prospects for expansion of the cowpea crop throughout Brazil, the results of this study contribute to the knowledge on the reaction of Brazilian cowpea genotypes to the root-knot nematode.	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0001-5030-4449	pt_BR
dc.contributor.affiliation	Universidade de Brasília, Departamento de Fitopatologia	pt_BR
dc.contributor.affiliation	Universidade de Brasília, Departamento de Fitopatologia	pt_BR
dc.contributor.affiliation	Universidade de Brasília, Departamento de Fitopatologia	pt_BR
dc.contributor.affiliation	University of California, Department of Nematology	pt_BR
dc.contributor.affiliation	Universidade Federal de Santa Maria, Departamento de Defesa Fitossanitária	pt_BR
dc.contributor.affiliation	Universidade de Brasília, Departamento de Fitopatologia	pt_BR
dc.description.unidade	Instituto de Ciências Biológicas (IB)	pt_BR
dc.description.unidade	Departamento de Fitopatologia (IB FIT)	pt_BR
dc.description.ppg	Programa de Pós-Graduação em Fitopatologia	pt_BR
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