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Registro Completo |
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Biblioteca(s): |
Embrapa Hortaliças. |
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Data corrente: |
21/07/2025 |
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Data da última atualização: |
21/07/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PINTO, T. J. B.; CUNHA, D. F.; SILVA, G. O. da; BOITEUX, L. S.; RAGASSI, C. F.; CORREIA, V. R.; RAFAEL, F. S.; RIBEIRO, C. S. da C.; CARVALHO, S. I. C. de; PINHEIRO, J. B.; CARES, J. E. |
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Afiliação: |
THAVIO JÚNIOR BARBOSA PINTO, UNIVERSIDADE DE BRASÍLIA; DWILLIAN FIRMIANO CUNHA, UNIVERSIDADE DE BRASÍLIA; GIOVANI OLEGARIO DA SILVA, CNPH; LEONARDO SILVA BOITEUX, CNPH; CARLOS FRANCISCO RAGASSI, CNPH; VALDIR RIBEIRO CORREIA, INSTITUTO FEDERAL DO TOCANTINS; FELIPE SANTOS RAFAEL, CENTRO UNIVERSITÁRIO ICESP; CLAUDIA SILVA DA COSTA RIBEIRO, CNPH; SABRINA ISABEL COSTA DE CARVALHO, CNPH; JADIR BORGES PINHEIRO, CNPH; JUVENIL ENRIQUE CARES, UNIVERSIDADE DE BRASÍLIA. |
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Título: |
Sources of resistance to Meloidogyne incognita in a diverse Capsicum chinense germplasm collection from the Amazon region. |
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Ano de publicação: |
2025 |
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Fonte/Imprenta: |
Tropical Plant Pathology, v. 50, Jul. 2025. |
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DOI: |
https://doi.org/10.1007/s40858-025-00751-y |
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Idioma: |
Inglês |
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Conteúdo: |
Meloidogyne incognita is one of the most important root-knot nematode species, causing significant yield losses in hot and sweet peppers (Capsicum spp.) worldwide. The employment of resistant cultivars is one of the most efficient and sustainable management strategies for this pathogen. However, there is a limited amount of data available on sources of resistance to M. incognita in Capsicum chinense germplasm. Herein, we evaluated the reaction to M. incognita of a genetically diverse C. chinense germplasm (collected in the Brazilian Amazon Basin), searching for useful sources of genetic resistance. Forty C. chinense accessions and two tomato controls were evaluated in two experiments conducted under greenhouse conditions. Individual plants were inoculated with a suspension containing 5000 eggs+second-stage juveniles (J2). Evaluations were carried out 60 days after inoculation according to the following criteria: egg mass index (EMI), gall index (GI), number of eggs and J2 per gram of roots (NR), the reproduction factor (RF), and the reproduction index (RI). Accessions exhibited varying types of reactions to M. incognita. New sources of resistance to M. incognita were identified in the accessions ‘CNPH 15348’, ‘CNPH 60087’, ‘CNPH 55001’, ‘CNPH 60090’, ‘CNPH 15749’, and the Brazilian cultivar ‘BRS Nandaia’. Thus far, sources of genetic resistance to Meloidogyne species in Capsicum species were identified mainly in C. annuum accessions. Hence, this subgroup of C. chinense accessions might represent potential sources of novel resistance genes/alleles, expanding the genetic basis of this relevant breeding trait. MenosMeloidogyne incognita is one of the most important root-knot nematode species, causing significant yield losses in hot and sweet peppers (Capsicum spp.) worldwide. The employment of resistant cultivars is one of the most efficient and sustainable management strategies for this pathogen. However, there is a limited amount of data available on sources of resistance to M. incognita in Capsicum chinense germplasm. Herein, we evaluated the reaction to M. incognita of a genetically diverse C. chinense germplasm (collected in the Brazilian Amazon Basin), searching for useful sources of genetic resistance. Forty C. chinense accessions and two tomato controls were evaluated in two experiments conducted under greenhouse conditions. Individual plants were inoculated with a suspension containing 5000 eggs+second-stage juveniles (J2). Evaluations were carried out 60 days after inoculation according to the following criteria: egg mass index (EMI), gall index (GI), number of eggs and J2 per gram of roots (NR), the reproduction factor (RF), and the reproduction index (RI). Accessions exhibited varying types of reactions to M. incognita. New sources of resistance to M. incognita were identified in the accessions ‘CNPH 15348’, ‘CNPH 60087’, ‘CNPH 55001’, ‘CNPH 60090’, ‘CNPH 15749’, and the Brazilian cultivar ‘BRS Nandaia’. Thus far, sources of genetic resistance to Meloidogyne species in Capsicum species were identified mainly in C. annuum accessions. Hence, this subgroup of C. chinense acces... Mostrar Tudo |
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Thesaurus Nal: |
Genetic resistance; Pepper; Root-knot nematodes. |
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Categoria do assunto: |
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Marc: |
LEADER 02550naa a2200289 a 4500
001 2177413
005 2025-07-21
008 2025 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s40858-025-00751-y$2DOI
100 1 $aPINTO, T. J. B.
245 $aSources of resistance to Meloidogyne incognita in a diverse Capsicum chinense germplasm collection from the Amazon region.$h[electronic resource]
260 $c2025
520 $aMeloidogyne incognita is one of the most important root-knot nematode species, causing significant yield losses in hot and sweet peppers (Capsicum spp.) worldwide. The employment of resistant cultivars is one of the most efficient and sustainable management strategies for this pathogen. However, there is a limited amount of data available on sources of resistance to M. incognita in Capsicum chinense germplasm. Herein, we evaluated the reaction to M. incognita of a genetically diverse C. chinense germplasm (collected in the Brazilian Amazon Basin), searching for useful sources of genetic resistance. Forty C. chinense accessions and two tomato controls were evaluated in two experiments conducted under greenhouse conditions. Individual plants were inoculated with a suspension containing 5000 eggs+second-stage juveniles (J2). Evaluations were carried out 60 days after inoculation according to the following criteria: egg mass index (EMI), gall index (GI), number of eggs and J2 per gram of roots (NR), the reproduction factor (RF), and the reproduction index (RI). Accessions exhibited varying types of reactions to M. incognita. New sources of resistance to M. incognita were identified in the accessions ‘CNPH 15348’, ‘CNPH 60087’, ‘CNPH 55001’, ‘CNPH 60090’, ‘CNPH 15749’, and the Brazilian cultivar ‘BRS Nandaia’. Thus far, sources of genetic resistance to Meloidogyne species in Capsicum species were identified mainly in C. annuum accessions. Hence, this subgroup of C. chinense accessions might represent potential sources of novel resistance genes/alleles, expanding the genetic basis of this relevant breeding trait.
650 $aGenetic resistance
650 $aPepper
650 $aRoot-knot nematodes
700 1 $aCUNHA, D. F.
700 1 $aSILVA, G. O. da
700 1 $aBOITEUX, L. S.
700 1 $aRAGASSI, C. F.
700 1 $aCORREIA, V. R.
700 1 $aRAFAEL, F. S.
700 1 $aRIBEIRO, C. S. da C.
700 1 $aCARVALHO, S. I. C. de
700 1 $aPINHEIRO, J. B.
700 1 $aCARES, J. E.
773 $tTropical Plant Pathology$gv. 50, Jul. 2025.
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Registro original: |
Embrapa Hortaliças (CNPH) |
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