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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
16/01/2018 |
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Data da última atualização: |
16/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PINHEIRO, P.; BEREMAN, M. S.; PALS, M.; ARMSTRONG, S.; HOWE, K. J.; THANNHAUSER, T. W.; MacCOSS, M. J.; GRAY, S. M.; CILIA, M. |
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Afiliação: |
PATRICIA VALLE PINHEIRO, CNPAF; MICHAEL S. BEREMAN, UNIVERSITY OF WASHINGTON; MELISSA PALS, USDA-ARS; SCOTT ARMSTRONG, USDA-ARS; KEVIN J. HOWE, USDA-ARS; THEODORE W. THANNHAUSER, USDA-ARS; MICHAEL J. MACCOSS, UNIVERSITY OF WASHINGTON; STEWART M. GRAY, CORNELL UNIVERSITY; MICHELLE CILIA, BOYCE THOMPSON INSTITUTE FOR PLANT RESEARCH. |
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Título: |
Evidence of the biochemical basis of host virulence in the greenbug aphid, Schizaphis graminum (Homoptera: Aphididae). |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Journal of Proteome Research, v. 13, n. 4, p. 2094-2108, Apr. 2014. |
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DOI: |
10.1021/pr4012415 |
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Idioma: |
Inglês |
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Conteúdo: |
Biotypes of aphids and many other insect pests are defined based on the phenotypic response of host plants to the insect pest without considering their intrinsic characteristics and genotypes. Plant breeders have spent considerable effort developing aphid-resistant, small-grain varieties to limit insecticide control of the greenbug, Schizaphis graminum. However, new S. graminum biotypes frequently emerge that break resistance. Mechanisms of virulence on the aphid side of the plant-insect interaction are not well understood. S. graminum biotype H is highly virulent on most small grain varieties. This characteristic makes biotype H ideal for comparative proteomics to investigate the basis of biotype virulence in aphids. In this study, we used comparative proteomics to identify protein expression differences associated with virulence. Aphid proteins involved in the tricarboxylic acid cycle, immune system, cell division, and antiapoptosis pathways were found to be up-regulated in biotype H relative to other biotypes. Proteins from the bacterial endosymbiont of aphids were also differentially expressed in biotype H. Guided by the proteome results, we tested whether biotype H had a fitness advantage compared with other S. graminum biotypes and found that biotype H had a higher reproductive fitness as compared with two other biotypes on a range of different wheat germplasms. Finally, we tested whether aphid genetics can be used to further dissect the genetic mechanisms of biotype virulence in aphids. The genetic data showed that sexual reproduction is a source of biotypic variation observed in S. graminum. MenosBiotypes of aphids and many other insect pests are defined based on the phenotypic response of host plants to the insect pest without considering their intrinsic characteristics and genotypes. Plant breeders have spent considerable effort developing aphid-resistant, small-grain varieties to limit insecticide control of the greenbug, Schizaphis graminum. However, new S. graminum biotypes frequently emerge that break resistance. Mechanisms of virulence on the aphid side of the plant-insect interaction are not well understood. S. graminum biotype H is highly virulent on most small grain varieties. This characteristic makes biotype H ideal for comparative proteomics to investigate the basis of biotype virulence in aphids. In this study, we used comparative proteomics to identify protein expression differences associated with virulence. Aphid proteins involved in the tricarboxylic acid cycle, immune system, cell division, and antiapoptosis pathways were found to be up-regulated in biotype H relative to other biotypes. Proteins from the bacterial endosymbiont of aphids were also differentially expressed in biotype H. Guided by the proteome results, we tested whether biotype H had a fitness advantage compared with other S. graminum biotypes and found that biotype H had a higher reproductive fitness as compared with two other biotypes on a range of different wheat germplasms. Finally, we tested whether aphid genetics can be used to further dissect the genetic mechanisms of biotype v... Mostrar Tudo |
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Palavras-Chave: |
Greenbug; Host virulence; Insect-plant interactions; Vector biology. |
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Thesagro: |
Pulgão; Schizaphis Graminum. |
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Thesaurus Nal: |
Aphidoidea; Biotypes. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02548naa a2200325 a 4500
001 2085533
005 2018-01-16
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1021/pr4012415$2DOI
100 1 $aPINHEIRO, P.
245 $aEvidence of the biochemical basis of host virulence in the greenbug aphid, Schizaphis graminum (Homoptera$bAphididae).
260 $c2014
520 $aBiotypes of aphids and many other insect pests are defined based on the phenotypic response of host plants to the insect pest without considering their intrinsic characteristics and genotypes. Plant breeders have spent considerable effort developing aphid-resistant, small-grain varieties to limit insecticide control of the greenbug, Schizaphis graminum. However, new S. graminum biotypes frequently emerge that break resistance. Mechanisms of virulence on the aphid side of the plant-insect interaction are not well understood. S. graminum biotype H is highly virulent on most small grain varieties. This characteristic makes biotype H ideal for comparative proteomics to investigate the basis of biotype virulence in aphids. In this study, we used comparative proteomics to identify protein expression differences associated with virulence. Aphid proteins involved in the tricarboxylic acid cycle, immune system, cell division, and antiapoptosis pathways were found to be up-regulated in biotype H relative to other biotypes. Proteins from the bacterial endosymbiont of aphids were also differentially expressed in biotype H. Guided by the proteome results, we tested whether biotype H had a fitness advantage compared with other S. graminum biotypes and found that biotype H had a higher reproductive fitness as compared with two other biotypes on a range of different wheat germplasms. Finally, we tested whether aphid genetics can be used to further dissect the genetic mechanisms of biotype virulence in aphids. The genetic data showed that sexual reproduction is a source of biotypic variation observed in S. graminum.
650 $aAphidoidea
650 $aBiotypes
650 $aPulgão
650 $aSchizaphis Graminum
653 $aGreenbug
653 $aHost virulence
653 $aInsect-plant interactions
653 $aVector biology
700 1 $aBEREMAN, M. S.
700 1 $aPALS, M.
700 1 $aARMSTRONG, S.
700 1 $aHOWE, K. J.
700 1 $aTHANNHAUSER, T. W.
700 1 $aMacCOSS, M. J.
700 1 $aGRAY, S. M.
700 1 $aCILIA, M.
773 $tJournal of Proteome Research$gv. 13, n. 4, p. 2094-2108, Apr. 2014.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Origem |
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Classificação |
Cutter |
Registro |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
13/05/2013 |
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Data da última atualização: |
13/05/2013 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
ALBINO, T. C.; VICTORIA, D. de C.; SILVA, G. B. S. da; BATISTELLA, M. |
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Afiliação: |
THAMYRES CAETANO ALBINO, BOLSISTA CNPM; DANIEL DE CASTRO VICTORIA, CNPM; GUSTAVO BAYMA SIQUEIRA DA SILVA, CNPM; MATEUS BATISTELLA, CNPM. |
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Título: |
Identificação de áreas agrícolas na fronteira Maranhão, Piauí, Tocantins e Bahia. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 16., 2013, Foz do Iguaçú. Anais... São José dos Campos: INPE, 2013. |
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Páginas: |
704-711 |
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Descrição Física: |
1 CD-ROM |
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Idioma: |
Português |
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Conteúdo: |
The increase in demand for food and agricultural products has led to an expansion of agricultural areas in Brazilian lands over the last decade, notably the region between the states of Maranhão, Piaui, Tocantins and Bahia. In order to evaluate and map such expansion, cropland mask from 2001 to 2007 were created based on remote sensing images. The production cycle of grain crops, with its rapid development and harvest, results in a strong seasonal signal that can be identified in time series of vegetation index images. Annual time series of the Enhanced Vegetation Index from MODIS sensor were analyzed and Fourier transforms were applied to each multitemporal image in order to isolate the annual and 6-month variation in the vegetation cover, typical of short cycle agricultural crops. Results were compared to official planted area statistics for the microregions encompassed in the study area. Both cropland masks and official statistics showed a strong increase in croplands. However, the cropland mask generated underestimated total planted area in 20%. These differences could be due to the account of double season crops in the planted area statistics or to a confusion caused by the Caatinga vegetation, which shows a strong seasonal vegetation cycle similar to the pattern observed in grain crops. |
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Palavras-Chave: |
Fourier; MODIS; Séries temporais; Tim e series. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/82704/1/VIctoriaSBSR.pdf
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Marc: |
LEADER 01991nam a2200205 a 4500
001 1957731
005 2013-05-13
008 2013 bl uuuu u00u1 u #d
100 1 $aALBINO, T. C.
245 $aIdentificação de áreas agrícolas na fronteira Maranhão, Piauí, Tocantins e Bahia.$h[electronic resource]
260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 16., 2013, Foz do Iguaçú. Anais... São José dos Campos: INPE$c2013
300 $a704-711$c1 CD-ROM
520 $aThe increase in demand for food and agricultural products has led to an expansion of agricultural areas in Brazilian lands over the last decade, notably the region between the states of Maranhão, Piaui, Tocantins and Bahia. In order to evaluate and map such expansion, cropland mask from 2001 to 2007 were created based on remote sensing images. The production cycle of grain crops, with its rapid development and harvest, results in a strong seasonal signal that can be identified in time series of vegetation index images. Annual time series of the Enhanced Vegetation Index from MODIS sensor were analyzed and Fourier transforms were applied to each multitemporal image in order to isolate the annual and 6-month variation in the vegetation cover, typical of short cycle agricultural crops. Results were compared to official planted area statistics for the microregions encompassed in the study area. Both cropland masks and official statistics showed a strong increase in croplands. However, the cropland mask generated underestimated total planted area in 20%. These differences could be due to the account of double season crops in the planted area statistics or to a confusion caused by the Caatinga vegetation, which shows a strong seasonal vegetation cycle similar to the pattern observed in grain crops.
653 $aFourier
653 $aMODIS
653 $aSéries temporais
653 $aTim e series
700 1 $aVICTORIA, D. de C.
700 1 $aSILVA, G. B. S. da
700 1 $aBATISTELLA, M.
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Embrapa Territorial (CNPM) |
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