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Registro Completo |
Biblioteca(s): |
Embrapa Algodão; Embrapa Recursos Genéticos e Biotecnologia. |
Data corrente: |
12/04/2019 |
Data da última atualização: |
20/01/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LOPES, C. M. L.; CARES, J. E.; PERINA, F. J.; NASCIMENTO, G. F.; MENDONÇA, J. S. F.; MOITA, A. W.; CASTAGNONE-SERENO, P.; CARNEIRO, R. M. D. G. |
Afiliação: |
C. M. L. LOPES, UNB; J. E. CARES, UNB; FABIANO JOSE PERINA, CNPA; G. F. NASCIMENTO; J. S. F. MENDONÇA; ANTONIO WILLIAMS MOITA, CNPH; P. CASTAGNONE-SERENO, INRA, FRANCE; REGINA MARIA DECHECHI G CARNEIRO, Cenargen. |
Título: |
Diversity of Meloidogyne incognita populations from cotton and aggressiveness to Gossypium spp. accessions. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Plant Pathology, v. 68, p. 816-824, 2019. |
DOI: |
10.1111/ppa.12991 |
Idioma: |
Inglês |
Conteúdo: |
The root-knot nematode (RKN) Meloidogyne incognita is the main nematode causing losses to the cotton crop in Brazil. In order to implement control strategies within integrated management, an accurate identification of the nematode populations prevailing in the cotton production areas is necessary. This study aimed to assess the genetic variability and aggressiveness of RKN populations from cotton production areas in Bahia state, Brazil. All populations were characterized biochemically and molecularly and identified as M. incognita. RAPD and AFLP markers detected 44% of polymorphic fragments among the 13 populations of this species. The 10 M. incognita populations collected in Bahia presented 33.7% of diversity when compared to each other, and 25% when the population from Barreiras (the most polymorphic) was excluded. This polymorphism increased when populations from other Brazilian states were included. The aggressiveness and virulence among populations from Bahia towards different cotton accessions (susceptible/resistant) was also studied. None of the populations showed virulence against the moderately resistant (Clevewilt 6, Wild Mexican Jack Jones and LA 887) and highly resistant (CIR1348 and M-315 RNR) cultivars. Two M. incognita populations from Barreiras were the most aggressive, reaching reproduction factors of 539 and 218, respectively, in the susceptible cultivar FiberMax 966. The most aggressive population (8) was also the most genetically divergent in phylogenetic analyses. These results demonstrate that diversity of M. incognita populations from cotton farms in Bahia is not related to virulence against resistant accessions, which suggests that cultivars containing one or two resistance genes with good agronomic characteristics could be used in infested commercial areas in Bahia state, Brazil. MenosThe root-knot nematode (RKN) Meloidogyne incognita is the main nematode causing losses to the cotton crop in Brazil. In order to implement control strategies within integrated management, an accurate identification of the nematode populations prevailing in the cotton production areas is necessary. This study aimed to assess the genetic variability and aggressiveness of RKN populations from cotton production areas in Bahia state, Brazil. All populations were characterized biochemically and molecularly and identified as M. incognita. RAPD and AFLP markers detected 44% of polymorphic fragments among the 13 populations of this species. The 10 M. incognita populations collected in Bahia presented 33.7% of diversity when compared to each other, and 25% when the population from Barreiras (the most polymorphic) was excluded. This polymorphism increased when populations from other Brazilian states were included. The aggressiveness and virulence among populations from Bahia towards different cotton accessions (susceptible/resistant) was also studied. None of the populations showed virulence against the moderately resistant (Clevewilt 6, Wild Mexican Jack Jones and LA 887) and highly resistant (CIR1348 and M-315 RNR) cultivars. Two M. incognita populations from Barreiras were the most aggressive, reaching reproduction factors of 539 and 218, respectively, in the susceptible cultivar FiberMax 966. The most aggressive population (8) was also the most genetically divergent in phylogenetic... Mostrar Tudo |
Palavras-Chave: |
AFLP; RAPD; Resistance; RKN management. |
Thesagro: |
Gossypium spp. |
Thesaurus Nal: |
Pathogenicity. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208667/1/Diversity-of-meloidogyne-incognita.pdf
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Marc: |
LEADER 02665naa a2200289 a 4500 001 2118660 005 2020-01-20 008 2019 bl uuuu u00u1 u #d 024 7 $a10.1111/ppa.12991$2DOI 100 1 $aLOPES, C. M. L. 245 $aDiversity of Meloidogyne incognita populations from cotton and aggressiveness to Gossypium spp. accessions.$h[electronic resource] 260 $c2019 520 $aThe root-knot nematode (RKN) Meloidogyne incognita is the main nematode causing losses to the cotton crop in Brazil. In order to implement control strategies within integrated management, an accurate identification of the nematode populations prevailing in the cotton production areas is necessary. This study aimed to assess the genetic variability and aggressiveness of RKN populations from cotton production areas in Bahia state, Brazil. All populations were characterized biochemically and molecularly and identified as M. incognita. RAPD and AFLP markers detected 44% of polymorphic fragments among the 13 populations of this species. The 10 M. incognita populations collected in Bahia presented 33.7% of diversity when compared to each other, and 25% when the population from Barreiras (the most polymorphic) was excluded. This polymorphism increased when populations from other Brazilian states were included. The aggressiveness and virulence among populations from Bahia towards different cotton accessions (susceptible/resistant) was also studied. None of the populations showed virulence against the moderately resistant (Clevewilt 6, Wild Mexican Jack Jones and LA 887) and highly resistant (CIR1348 and M-315 RNR) cultivars. Two M. incognita populations from Barreiras were the most aggressive, reaching reproduction factors of 539 and 218, respectively, in the susceptible cultivar FiberMax 966. The most aggressive population (8) was also the most genetically divergent in phylogenetic analyses. These results demonstrate that diversity of M. incognita populations from cotton farms in Bahia is not related to virulence against resistant accessions, which suggests that cultivars containing one or two resistance genes with good agronomic characteristics could be used in infested commercial areas in Bahia state, Brazil. 650 $aPathogenicity 650 $aGossypium spp 653 $aAFLP 653 $aRAPD 653 $aResistance 653 $aRKN management 700 1 $aCARES, J. E. 700 1 $aPERINA, F. J. 700 1 $aNASCIMENTO, G. F. 700 1 $aMENDONÇA, J. S. F. 700 1 $aMOITA, A. W. 700 1 $aCASTAGNONE-SERENO, P. 700 1 $aCARNEIRO, R. M. D. G. 773 $tPlant Pathology$gv. 68, p. 816-824, 2019.
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Registro original: |
Embrapa Algodão (CNPA) |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
17/04/2008 |
Data da última atualização: |
13/06/2017 |
Tipo da produção científica: |
Folder/Folheto/Cartilha |
Autoria: |
LOPES, A. de M.; MASCARENHAS, R. E. B.; GALDINO, J. S. |
Afiliação: |
Altevir de Matos Lopes, CPATU; Raimundo Evandro Barbosa Mascarenhas, CPATU; Juvenal Soares Galdino. |
Título: |
Unidade demonstrativa cultivar de arroz BRS Jaçanã: Comunidade Agrícola São Benedito, Bragança - Pará. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Belém, PA: Embrapa Amazônia Oriental, 2007. |
Idioma: |
Português |
Notas: |
1 folder. |
Palavras-Chave: |
Bragança; Brasil; BRS Jaçanã; Irrigado; Pará; Região tropical. |
Thesagro: |
Arroz; Melhoramento Genético Vegetal; Oryza Sativa; Variedade. |
Thesaurus NAL: |
Amazonia. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/91286/1/Fd318.pdf
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Marc: |
LEADER 00742nam a2200265 a 4500 001 1409528 005 2017-06-13 008 2007 bl uuuu u0uu1 u #d 100 1 $aLOPES, A. de M. 245 $aUnidade demonstrativa cultivar de arroz BRS Jaçanã$bComunidade Agrícola São Benedito, Bragança - Pará. 260 $aBelém, PA: Embrapa Amazônia Oriental$c2007 500 $a1 folder. 650 $aAmazonia 650 $aArroz 650 $aMelhoramento Genético Vegetal 650 $aOryza Sativa 650 $aVariedade 653 $aBragança 653 $aBrasil 653 $aBRS Jaçanã 653 $aIrrigado 653 $aPará 653 $aRegião tropical 700 1 $aMASCARENHAS, R. E. B. 700 1 $aGALDINO, J. S.
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