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Registro Completo |
Biblioteca(s): |
Embrapa Algodão. |
Data corrente: |
17/05/1993 |
Data da última atualização: |
17/05/1993 |
Autoria: |
RICO GUTIERREZ, M. |
Título: |
Genetica - estadistica. |
Ano de publicação: |
1965 |
Fonte/Imprenta: |
Madrid: Instituto Nacional de Investigaciones Agronomicas, 1965. |
Páginas: |
165p. |
Idioma: |
Espanhol |
Conteúdo: |
Frecuencias genicas en poblaciones infinitas; by de hardy weinberg; Alelos multiples; Autotetraploides; Alelos de incompatibilidad; Dos pares de genes; Mutaciones; Seleccion y mutacion; Frecuencias genicas en poblaciones finitas; Valores fenotipicos; Particion de la varianza fenotipica; Heredabilidad y su determinacion; Seleccion basada en la varianza genetica aditiva; Seleccion basada en el control de los apareamientos. |
Thesagro: |
Estatística; Genética; Hereditariedade; Melhoramento. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00856nam a2200169 a 4500 001 1261505 005 1993-05-17 008 1965 bl uuuu 00u1 u #d 100 1 $aRICO GUTIERREZ, M. 245 $aGenetica - estadistica. 260 $aMadrid: Instituto Nacional de Investigaciones Agronomicas$c1965 300 $a165p. 520 $aFrecuencias genicas en poblaciones infinitas; by de hardy weinberg; Alelos multiples; Autotetraploides; Alelos de incompatibilidad; Dos pares de genes; Mutaciones; Seleccion y mutacion; Frecuencias genicas en poblaciones finitas; Valores fenotipicos; Particion de la varianza fenotipica; Heredabilidad y su determinacion; Seleccion basada en la varianza genetica aditiva; Seleccion basada en el control de los apareamientos. 650 $aEstatística 650 $aGenética 650 $aHereditariedade 650 $aMelhoramento
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Registro original: |
Embrapa Algodão (CNPA) |
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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 |
Circulação/Nível: |
A - 1 |
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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