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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
12/03/2013 |
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Data da última atualização: |
29/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
SOSA-GÓMEZ, D. R.; MIRANDA, J. E. |
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Afiliação: |
DANIEL RICARDO SOSA GOMEZ, CNPSO; JOSE EDNILSON MIRANDA, CNPA. |
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Título: |
Fitness cost of resistance to bacillus thuringiensisin velvetbean caterpillar anticarsia gemmatalishübner (lepidoptera, noctuidae). |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Revista Brasileira de Entomologia, v. 56, n. 3, p. 359-362, Set. 2012. |
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Série: |
0085-5626 |
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Idioma: |
Inglês |
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Conteúdo: |
Selection pressure to obtain resistant genotypes can result in fitness cost. In this study, we report the effects of the selection pressure of a commercial formulation of Bacillus thuringiensis on biological aspects of a Dipel-resistant strain of velvetbean caterpillar, Anticarsia gemmatalis Hübner. Comparisons of Dipel-resistant and susceptible individuals revealed significant differences in pupal weight and larval development time. Both strains (Dipel-resistant and susceptible) were susceptible to Cry1Ac toxin expressed in foliar cotton tissues. Resistant and susceptible strains showed low survival rates of 22.5% and 51.2%, respectively, when fed with Greene diet containing Bt-cotton. Larvae bioassayed after three laboratory generations presented lower survival and less instar numbers than individuals maintained in the laboratory for more than 144 generations. Pupal weight was 9.4% lower and larval development time was 1.9 days longer in the resistant population than in the susceptible strain. Other parameters, such as duration of pupal stage, adult longevity, number of eggs per female, oviposition period, and egg fertility, remained unaffected. Keywords: Anticarsia gemmatalis; toxin; Cry1Ac; Dipel-resistant; strain. |
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Palavras-Chave: |
Cry1 Ac; Dipel. |
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Thesagro: |
Anticarsia Gemmatalis; Raça; Soja; Toxina. |
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Thesaurus NAL: |
Anticarsia; Soybeans; Toxins. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/78841/1/ID-34337.pdf
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Marc: |
LEADER 01975naa a2200253 a 4500
001 1952776
005 2022-04-29
008 2012 bl uuuu u00u1 u #d
100 1 $aSOSA-GÓMEZ, D. R.
245 $aFitness cost of resistance to bacillus thuringiensisin velvetbean caterpillar anticarsia gemmatalishübner (lepidoptera, noctuidae).$h[electronic resource]
260 $c2012
490 $a0085-5626
520 $aSelection pressure to obtain resistant genotypes can result in fitness cost. In this study, we report the effects of the selection pressure of a commercial formulation of Bacillus thuringiensis on biological aspects of a Dipel-resistant strain of velvetbean caterpillar, Anticarsia gemmatalis Hübner. Comparisons of Dipel-resistant and susceptible individuals revealed significant differences in pupal weight and larval development time. Both strains (Dipel-resistant and susceptible) were susceptible to Cry1Ac toxin expressed in foliar cotton tissues. Resistant and susceptible strains showed low survival rates of 22.5% and 51.2%, respectively, when fed with Greene diet containing Bt-cotton. Larvae bioassayed after three laboratory generations presented lower survival and less instar numbers than individuals maintained in the laboratory for more than 144 generations. Pupal weight was 9.4% lower and larval development time was 1.9 days longer in the resistant population than in the susceptible strain. Other parameters, such as duration of pupal stage, adult longevity, number of eggs per female, oviposition period, and egg fertility, remained unaffected. Keywords: Anticarsia gemmatalis; toxin; Cry1Ac; Dipel-resistant; strain.
650 $aAnticarsia
650 $aSoybeans
650 $aToxins
650 $aAnticarsia Gemmatalis
650 $aRaça
650 $aSoja
650 $aToxina
653 $aCry1 Ac
653 $aDipel
700 1 $aMIRANDA, J. E.
773 $tRevista Brasileira de Entomologia$gv. 56, n. 3, p. 359-362, Set. 2012.
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Embrapa Soja (CNPSO) |
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