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Registro Completo |
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
09/02/2022 |
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Data da última atualização: |
12/02/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PACHÚ, J. K. S.; MACHEDO, F. C. O.; MALAQUIAS, J. P.; RAMALHO, F. de S.; OLIVEIRA, R. F.; FRANCO, F. P.; GODOY, W. A. C. |
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Afiliação: |
JÉSSICA K. S. PACHÚ, ESALQ; FRANCYNES C. O. MACEDO, ESALQ; JOSÉ P. MALAQUIAS, UNESP; FRANCISCO DE SOUSA RAMALHO, CNPA; RICARDO F. OLIVEIRA, ESALQ; FLÁVIA PEREIRA FRANCO, ESALQ; WESLEY A. C. GODOY, ESALQ. |
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Título: |
Electrical signalling on Bt and non-Bt cotton plants under stress by Aphis gossypii. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
PLoS ONE, v. 16, n. 4, e0249699, p. 1-15, 2021. |
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Páginas: |
15 p. |
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ISSN: |
1932-6203 |
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DOI: |
10.1371/journal.pone.0249699 |
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Idioma: |
Inglês |
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Conteúdo: |
Plants have developed various mechanisms to respond specifically to each biotrophic attack. It has been shown that the electrical signals emitted by plants are associated with herbivory stress responses and can lead to the activation of multiple defences. Bt cotton is a genetically modified pest-resistant plant that produces an insecticide from Bacillus thuringiensis (Bt) to control Lepidopteran species. Surprisingly, there is no study?yet, that characterizes the signalling mechanisms in transgenic cotton plants attacked by non-target insects, such as aphids. In this study, we characterized the production of electrical signals on Bt and non-Bt cotton plants infested with Aphis gossypii and, in addition, we characterized the dispersal behaviour of aphids to correlate this behaviour to plant signalling responses. Electrical signalling of the plants was recorded with an extracellular measurement technique. Impressively, our results showed that both Bt and non-Bt cotton varieties, when attacked by A. gossypii, emitted potential variation-type electrical signals and clearly showed the presence of distinct responses regarding their perception and the behaviour ofaphids, with evidence of delay, in terms of signal amount, and almost twice the amount of Cry1F protein was observed on Bt cotton plants at the highest density of insects/plant. We present in our article some hypotheses that are based on plant physiology and insect behaviour to explain the responses found on Bt cotton plants under aphid stress. MenosPlants have developed various mechanisms to respond specifically to each biotrophic attack. It has been shown that the electrical signals emitted by plants are associated with herbivory stress responses and can lead to the activation of multiple defences. Bt cotton is a genetically modified pest-resistant plant that produces an insecticide from Bacillus thuringiensis (Bt) to control Lepidopteran species. Surprisingly, there is no study?yet, that characterizes the signalling mechanisms in transgenic cotton plants attacked by non-target insects, such as aphids. In this study, we characterized the production of electrical signals on Bt and non-Bt cotton plants infested with Aphis gossypii and, in addition, we characterized the dispersal behaviour of aphids to correlate this behaviour to plant signalling responses. Electrical signalling of the plants was recorded with an extracellular measurement technique. Impressively, our results showed that both Bt and non-Bt cotton varieties, when attacked by A. gossypii, emitted potential variation-type electrical signals and clearly showed the presence of distinct responses regarding their perception and the behaviour ofaphids, with evidence of delay, in terms of signal amount, and almost twice the amount of Cry1F protein was observed on Bt cotton plants at the highest density of insects/plant. We present in our article some hypotheses that are based on plant physiology and insect behaviour to explain the responses found on Bt cotton plan... Mostrar Tudo |
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Thesagro: |
Algodão; Aphis Gossypii; Bacillus Thuringiensis; Defesa Vegetal; Organismo Transgênico. |
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Thesaurus Nal: |
Animal stress; Cotton; Defense mechanisms; Transgenic plants. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/231131/1/ELECTRICAL-SIGNALLING-BT-NON-BT-COTTON.pdf
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Marc: |
LEADER 02482naa a2200337 a 4500
001 2139863
005 2022-02-12
008 2021 bl uuuu u00u1 u #d
022 $a1932-6203
024 7 $a10.1371/journal.pone.0249699$2DOI
100 1 $aPACHÚ, J. K. S.
245 $aElectrical signalling on Bt and non-Bt cotton plants under stress by Aphis gossypii.$h[electronic resource]
260 $c2021
300 $a15 p.
520 $aPlants have developed various mechanisms to respond specifically to each biotrophic attack. It has been shown that the electrical signals emitted by plants are associated with herbivory stress responses and can lead to the activation of multiple defences. Bt cotton is a genetically modified pest-resistant plant that produces an insecticide from Bacillus thuringiensis (Bt) to control Lepidopteran species. Surprisingly, there is no study?yet, that characterizes the signalling mechanisms in transgenic cotton plants attacked by non-target insects, such as aphids. In this study, we characterized the production of electrical signals on Bt and non-Bt cotton plants infested with Aphis gossypii and, in addition, we characterized the dispersal behaviour of aphids to correlate this behaviour to plant signalling responses. Electrical signalling of the plants was recorded with an extracellular measurement technique. Impressively, our results showed that both Bt and non-Bt cotton varieties, when attacked by A. gossypii, emitted potential variation-type electrical signals and clearly showed the presence of distinct responses regarding their perception and the behaviour ofaphids, with evidence of delay, in terms of signal amount, and almost twice the amount of Cry1F protein was observed on Bt cotton plants at the highest density of insects/plant. We present in our article some hypotheses that are based on plant physiology and insect behaviour to explain the responses found on Bt cotton plants under aphid stress.
650 $aAnimal stress
650 $aCotton
650 $aDefense mechanisms
650 $aTransgenic plants
650 $aAlgodão
650 $aAphis Gossypii
650 $aBacillus Thuringiensis
650 $aDefesa Vegetal
650 $aOrganismo Transgênico
700 1 $aMACHEDO, F. C. O.
700 1 $aMALAQUIAS, J. P.
700 1 $aRAMALHO, F. de S.
700 1 $aOLIVEIRA, R. F.
700 1 $aFRANCO, F. P.
700 1 $aGODOY, W. A. C.
773 $tPLoS ONE$gv. 16, n. 4, e0249699, p. 1-15, 2021.
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Registro original: |
Embrapa Algodão (CNPA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
10/08/2021 |
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Data da última atualização: |
10/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SILVA, H. T.; LOPES, P. S.; COSTA, C. N.; SILVA, A. A.; SILVA, D. A.; SILVA, F. F.; VERONEZE, R.; THOMPSON, G.; CARVALHEIRA, J. |
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Afiliação: |
HUGO TEIXEIRA SILVA, Universidade Federal de Viçosa; PAULO SÁVIO LOPES, Universidade Federal de Viçosa; CLAUDIO NAPOLIS COSTA, CNPGL; ALESSANDRA ALVES SILVA, Universidade Federal de Viçosa; DELVAN ALVES SILVA, Universidade Federal de Viçosa; FABYANO FONSECA SILVA, Universidade Federal de Viçosa; RENATA VERONEZE, Universidade Federal de Viçosa; GERTRUDE THOMPSON, Universidade do Porto; JÚLIO CARVALHEIRA, Universidade do Porto. |
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Título: |
Autoregressive single-step model for genomic evaluation of longitudinal reproductive traits in portuguese holstein cattle. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of Animal Breeding and Genetics, v. 138, n. 3, p. 349-359, 2021. |
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DOI: |
https://doi.org/10.1111/jbg.12515 |
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Idioma: |
Inglês |
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Conteúdo: |
We investigated the applicability of ssGBLUP methodology under the autoregressive model (H-AR) for genomic evaluation of longitudinal reproductive traits in Portuguese Holstein cattle. The genotype data of 1,230 bulls and 1,645 cows were considered in our study. The reproductive traits evaluated were interval from calving to first service (ICF), calving interval (CI) and daughter pregnancy rate (DPR) measured during the first four parities. Reliability and rank correlation were used to compare the H-AR with the traditional pedigree-based autoregressive models (A-AR). In addition, a validation study was performed considering different scenarios. Higher genomic estimated breeding values (GEBV) reliabilities were obtained for genotyped bulls when evaluated under the H-AR model, with emphasis on bulls with less than 9 daughters. For this group, the averages of GEBV reliabilities corresponded to 0.62, 0.69 and 0.62 for ICF, CI and DPR, respectively, while the averages obtained by the A-AR model were 0.27, 0.15 and 0.16. The validation study was favourable to H-AR. The best results were observed in the scenario where genotyped cows were combined with contributing bulls (genotyped bulls with daughter or relationship information in the population). Overall, the results suggest that ssGBLUP methodology under the autoregressive model is a feasible and applicable approach to be used in genomic analyses of longitudinal reproductive traits in Portuguese Holstein cattle. |
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Palavras-Chave: |
Autorregressão; Avaliação genômica; Previsão genômica; SsGBLUP. |
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Thesagro: |
Bovino; Gado Leiteiro. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02394naa a2200301 a 4500
001 2133407
005 2021-08-10
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/jbg.12515$2DOI
100 1 $aSILVA, H. T.
245 $aAutoregressive single-step model for genomic evaluation of longitudinal reproductive traits in portuguese holstein cattle.$h[electronic resource]
260 $c2021
520 $aWe investigated the applicability of ssGBLUP methodology under the autoregressive model (H-AR) for genomic evaluation of longitudinal reproductive traits in Portuguese Holstein cattle. The genotype data of 1,230 bulls and 1,645 cows were considered in our study. The reproductive traits evaluated were interval from calving to first service (ICF), calving interval (CI) and daughter pregnancy rate (DPR) measured during the first four parities. Reliability and rank correlation were used to compare the H-AR with the traditional pedigree-based autoregressive models (A-AR). In addition, a validation study was performed considering different scenarios. Higher genomic estimated breeding values (GEBV) reliabilities were obtained for genotyped bulls when evaluated under the H-AR model, with emphasis on bulls with less than 9 daughters. For this group, the averages of GEBV reliabilities corresponded to 0.62, 0.69 and 0.62 for ICF, CI and DPR, respectively, while the averages obtained by the A-AR model were 0.27, 0.15 and 0.16. The validation study was favourable to H-AR. The best results were observed in the scenario where genotyped cows were combined with contributing bulls (genotyped bulls with daughter or relationship information in the population). Overall, the results suggest that ssGBLUP methodology under the autoregressive model is a feasible and applicable approach to be used in genomic analyses of longitudinal reproductive traits in Portuguese Holstein cattle.
650 $aBovino
650 $aGado Leiteiro
653 $aAutorregressão
653 $aAvaliação genômica
653 $aPrevisão genômica
653 $aSsGBLUP
700 1 $aLOPES, P. S.
700 1 $aCOSTA, C. N.
700 1 $aSILVA, A. A.
700 1 $aSILVA, D. A.
700 1 $aSILVA, F. F.
700 1 $aVERONEZE, R.
700 1 $aTHOMPSON, G.
700 1 $aCARVALHEIRA, J.
773 $tJournal of Animal Breeding and Genetics$gv. 138, n. 3, p. 349-359, 2021.
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Embrapa Gado de Leite (CNPGL) |
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