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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
02/03/2016 |
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Data da última atualização: |
02/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
YANO, S. A. C.; SPECHT, A.; MOSCARDI, F.; CARVALHO, R. A.; DOURADO, P. M.; MARTINELLI, S.; HEAD, G. P.; SOSA-GOMEZ, D.R. |
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Afiliação: |
ALEXANDRE SPECHT, CPAC; DANIEL RICARDO SOSA GOMEZ, CNPSO. |
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Título: |
High susceptibility and low resistance allele frequency of Chrysodeixis includens (Lepidoptera: Noctuidae) field populations to Cry1Ac in Brazil. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Pest Management Science, v. 71, 2015. |
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Idioma: |
Português |
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Conteúdo: |
The soybean looper (SBL), Chrysodeixis includens (Walker), is one of the most important soybean pests in Brazil. MON 87701 × MON 89788 soybean expressing Cry1Ac has been recently deployed in Brazil, providing high levels of control against the primary lepidopteran pests. To support insect resistance management (IRM) programs, the baseline susceptibility of SBL to Cry1Ac was assessed and resistance allele frequency was estimated based on an F2 screen.
RESULTS:
The toxicity (LC50 ) of Cry1Ac ranged from 0.39 to 2.01 µg·ml-1 of diet among all SBL field populations collected from crop seasons 2008/09 to 2012/13, which indicated approximately 5-fold variation. Cry1Ac diagnostic concentrations of 5.6 and 18 µg·ml-1 of diet were established for monitoring purposes, and no shift in mortality has been observed. A total of 626 F2 family lines derived from SBL collected from locations across Brazil during crop season 2014/15 were screened for the presence of Cry1Ac resistance alleles. None of the 626 families survived on MON 87701 × MON 89788 soybean leaf tissue (joint frequency = 0.0004).
CONCLUSIONS:
SBL showed high susceptibility and low resistance allele frequency to Cry1Ac across the main soybean-producing regions in Brazil. These findings meet important criteria for effective IRM strategy. |
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Palavras-Chave: |
Controle de praga; Lagarta de soja. |
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Thesagro: |
Praga de Planta. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02029naa a2200241 a 4500
001 2039353
005 2016-03-02
008 2015 bl --- 0-- u #d
100 1 $aYANO, S. A. C.
245 $aHigh susceptibility and low resistance allele frequency of Chrysodeixis includens (Lepidoptera$bNoctuidae) field populations to Cry1Ac in Brazil.
260 $c2015
520 $aThe soybean looper (SBL), Chrysodeixis includens (Walker), is one of the most important soybean pests in Brazil. MON 87701 × MON 89788 soybean expressing Cry1Ac has been recently deployed in Brazil, providing high levels of control against the primary lepidopteran pests. To support insect resistance management (IRM) programs, the baseline susceptibility of SBL to Cry1Ac was assessed and resistance allele frequency was estimated based on an F2 screen. RESULTS: The toxicity (LC50 ) of Cry1Ac ranged from 0.39 to 2.01 µg·ml-1 of diet among all SBL field populations collected from crop seasons 2008/09 to 2012/13, which indicated approximately 5-fold variation. Cry1Ac diagnostic concentrations of 5.6 and 18 µg·ml-1 of diet were established for monitoring purposes, and no shift in mortality has been observed. A total of 626 F2 family lines derived from SBL collected from locations across Brazil during crop season 2014/15 were screened for the presence of Cry1Ac resistance alleles. None of the 626 families survived on MON 87701 × MON 89788 soybean leaf tissue (joint frequency = 0.0004). CONCLUSIONS: SBL showed high susceptibility and low resistance allele frequency to Cry1Ac across the main soybean-producing regions in Brazil. These findings meet important criteria for effective IRM strategy.
650 $aPraga de Planta
653 $aControle de praga
653 $aLagarta de soja
700 1 $aSPECHT, A.
700 1 $aMOSCARDI, F.
700 1 $aCARVALHO, R. A.
700 1 $aDOURADO, P. M.
700 1 $aMARTINELLI, S.
700 1 $aHEAD, G. P.
700 1 $aSOSA-GOMEZ, D.R.
773 $tPest Management Science$gv. 71, 2015.
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Registro original: |
Embrapa Cerrados (CPAC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
27/02/1997 |
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Data da última atualização: |
15/04/2016 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
BLACKBURN, H. D.; FIGUEIREDO, E. A. P.; COSTA, C. A. F.; BERNE, M. E. A.; VIEIRA, L. da S. |
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Afiliação: |
Texas A&M University, College Station; Élsio Antônio Pereira de Figueiredo, CNPC; Carlos Alberto Fagonde Costa, CNPC; Maria Elisabeth Aires Berne, CNPC; Luiz da Silva Vieira, CNPC. |
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Título: |
Simulation of the effects of parasite infestation in the performance of goats in Northeastern Brazil. |
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Ano de publicação: |
1988 |
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Fonte/Imprenta: |
College State: Small Ruminant Collaborative Research Support Program, 1988. |
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Páginas: |
20 p. |
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Série: |
(SR-CRSP. Technical Report Series, 96). |
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Idioma: |
Inglês |
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Conteúdo: |
The objectives of this study were: 1) to utilize H. contortus data collected by parasitologists at the Centro Nacional de Pesquisa de Caprinos (CNPC) for evaluating the parasite component of the TAES Goat Simulation Model in projecting animal response, in terms of trend and magnitude, to worm burden and treatment; 2) to locate knowledge voids related to modeling helminth effects on goats so that real world experiments can be designed to provide answers; 3) perhaps the most important, to design effective drenching programs which raise the productivity of goats while remaining withing economic constraints. |
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Palavras-Chave: |
Brasil; Endoparasito; Nordeste; Northeast; Simulation. |
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Thesagro: |
Caprino; Epidemiologia; Parasitologia; Performance; Simulação. |
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Thesaurus NAL: |
Brazil; Endoparasites; Epidemiology; Goats; Parasites; Parasitology. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 01633nam a2200373 a 4500
001 1514280
005 2016-04-15
008 1988 bl uuuu u0uu1 u #d
100 1 $aBLACKBURN, H. D.
245 $aSimulation of the effects of parasite infestation in the performance of goats in Northeastern Brazil.
260 $aCollege State: Small Ruminant Collaborative Research Support Program$c1988
300 $a20 p.
490 $a(SR-CRSP. Technical Report Series, 96).
520 $aThe objectives of this study were: 1) to utilize H. contortus data collected by parasitologists at the Centro Nacional de Pesquisa de Caprinos (CNPC) for evaluating the parasite component of the TAES Goat Simulation Model in projecting animal response, in terms of trend and magnitude, to worm burden and treatment; 2) to locate knowledge voids related to modeling helminth effects on goats so that real world experiments can be designed to provide answers; 3) perhaps the most important, to design effective drenching programs which raise the productivity of goats while remaining withing economic constraints.
650 $aBrazil
650 $aEndoparasites
650 $aEpidemiology
650 $aGoats
650 $aParasites
650 $aParasitology
650 $aCaprino
650 $aEpidemiologia
650 $aParasitologia
650 $aPerformance
650 $aSimulação
653 $aBrasil
653 $aEndoparasito
653 $aNordeste
653 $aNortheast
653 $aSimulation
700 1 $aFIGUEIREDO, E. A. P.
700 1 $aCOSTA, C. A. F.
700 1 $aBERNE, M. E. A.
700 1 $aVIEIRA, L. da S.
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Embrapa Caprinos e Ovinos (CNPC) |
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