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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Florestas. |
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Data corrente: |
10/06/1998 |
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Data da última atualização: |
10/06/1998 |
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Autoria: |
REZENDE, A. V.; SALGADO, M. A. de S.; FELFILI, J. M.; FRANCO, A. C; SOUSA-SILVA, J. C.; CORNACHIA, G.; SILVA, M. A. |
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Título: |
Crescimento e repartição de biomassa em plântulas de Cryptocaria aschersoniana Mez. submetidas a diferentes regimes de luz em viveiro. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Boletim do Herbário Ezechias Paulo Heringer, Brasília, v.2, p.19-33, mar. 1998. |
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Idioma: |
Português |
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Conteúdo: |
A especie Cryptocaria aschersoniana Mez. tem ocorrencia ampla, sendo comum as matas de galeria, Atlantica e a mata dos Pinhais. Este estudo de desenvolvimento inicial das plantulas visou obter subsidios para a recuperacao de ambientes florestais degradados. As plantulas foram submetidas a quatro condicoes de sombreamento. Cada condicao procurou reproduzir uma fase da sucessao em floresta natural. Os niveis de sombreamento foram em media, 0, 50, 70 e 90%. Os parametros diametro do coleto, altura e numero de folha foram avaliados bimensalmente, totalizando cinco mensuracoes no periodo estudado. A producao de materia seca foi avaliada no final do experimento. A variavel altura apresentou medias significativamente maiores nos tratamentos que simularam condicoes de dossel fechado (90% de sombreamento) e de clareira (50% de sombreamento). O diametro do coleto teve comportamento semelhante ao da altura, exceto na ultima medicao onde as medias encontradas na condicao de clareira foram maiores. Para o peso seco, verificou-se que a condicao de clareira proporcionou uma distribuicao equitativa da materia seca entre raizes, caules e folhas. Pode-se concluir que a melhor condicao para introducao dessa especies num processo de recuperacao de matas degradadas e na fase de fechamento das clareiras. |
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Palavras-Chave: |
Cryptocaria aschersoniana; Gallery forests; Growth; Indigenous organisms; Luz; Mata de galeria; Planta nativa; Shading. |
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Thesagro: |
Biomassa; Cerrado; Crescimento; Muda; Plântula; Sombreamento; Viveiro; Viveiro Florestal. |
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Thesaurus Nal: |
biomass; forest nurseries; light; plant nurseries; seedlings. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02525naa a2200445 a 4500
001 1554301
005 1998-06-10
008 1998 bl uuuu u00u1 u #d
100 1 $aREZENDE, A. V.
245 $aCrescimento e repartição de biomassa em plântulas de Cryptocaria aschersoniana Mez. submetidas a diferentes regimes de luz em viveiro.
260 $c1998
520 $aA especie Cryptocaria aschersoniana Mez. tem ocorrencia ampla, sendo comum as matas de galeria, Atlantica e a mata dos Pinhais. Este estudo de desenvolvimento inicial das plantulas visou obter subsidios para a recuperacao de ambientes florestais degradados. As plantulas foram submetidas a quatro condicoes de sombreamento. Cada condicao procurou reproduzir uma fase da sucessao em floresta natural. Os niveis de sombreamento foram em media, 0, 50, 70 e 90%. Os parametros diametro do coleto, altura e numero de folha foram avaliados bimensalmente, totalizando cinco mensuracoes no periodo estudado. A producao de materia seca foi avaliada no final do experimento. A variavel altura apresentou medias significativamente maiores nos tratamentos que simularam condicoes de dossel fechado (90% de sombreamento) e de clareira (50% de sombreamento). O diametro do coleto teve comportamento semelhante ao da altura, exceto na ultima medicao onde as medias encontradas na condicao de clareira foram maiores. Para o peso seco, verificou-se que a condicao de clareira proporcionou uma distribuicao equitativa da materia seca entre raizes, caules e folhas. Pode-se concluir que a melhor condicao para introducao dessa especies num processo de recuperacao de matas degradadas e na fase de fechamento das clareiras.
650 $abiomass
650 $aforest nurseries
650 $alight
650 $aplant nurseries
650 $aseedlings
650 $aBiomassa
650 $aCerrado
650 $aCrescimento
650 $aMuda
650 $aPlântula
650 $aSombreamento
650 $aViveiro
650 $aViveiro Florestal
653 $aCryptocaria aschersoniana
653 $aGallery forests
653 $aGrowth
653 $aIndigenous organisms
653 $aLuz
653 $aMata de galeria
653 $aPlanta nativa
653 $aShading
700 1 $aSALGADO, M. A. de S.
700 1 $aFELFILI, J. M.
700 1 $aFRANCO, A. C
700 1 $aSOUSA-SILVA, J. C.
700 1 $aCORNACHIA, G.
700 1 $aSILVA, M. A.
773 $tBoletim do Herbário Ezechias Paulo Heringer, Brasília$gv.2, p.19-33, mar. 1998.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Pecuária Sudeste; Embrapa Pecuária Sul; Embrapa Suínos e Aves. |
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Data corrente: |
03/01/2020 |
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Data da última atualização: |
03/01/2020 |
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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: |
MORÉ, D. D.; CARDOSO, F. F.; MUDADU, M. de A.; MALAGO JUNIOR, W.; GULIAS GOMES, C. C.; SOLLERO, B. P.; IBELLI, A. M. G.; COUTINHO, L. L.; REGITANO, L. C. de A. |
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Afiliação: |
Daniela D. Moré, CPPSE; FERNANDO FLORES CARDOSO, CPPSUL; MAURICIO DE ALVARENGA MUDADU, CNPTIA; WILSON MALAGO JUNIOR, CPPSE; CLAUDIA CRISTINA GULIAS GOMES, CPPSUL; BRUNA PENA SOLLERO, CPPSUL; ADRIANA MERCIA GUARATINI IBELLI, CNPSA; Luiz L. Coutinho, USP; LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE. |
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Título: |
Network analysis uncovers putative genes affecting resistance to tick infestation in Braford cattle skin. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
BMC Genomics, v. 20, n. 998, 2019. |
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DOI: |
10.1186/s12864-019-6360-3 |
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Idioma: |
Inglês |
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Conteúdo: |
Background: Genetic resistance in cattle is considered a suitable way to control tick burden and its consequent losses for livestock production. Exploring tick-resistant (R) and tick-susceptible (S) hosts, we investigated the genetic mechanisms underlying the variation of Braford resistance to tick infestation. Skin biopsies from four-times-artificially infested R (n = 20) and S (n = 19) hosts, obtained before the first and 24 h after the fourth tick infestation were submitted to RNA-Sequencing. Differential gene expression, functional enrichment, and network analysis were performed to identify genetic pathways and transcription factors (TFs) affecting host resistance. Results: Intergroup comparisons of hosts before (Rpre vs. Spre) and after (Rpost vs. Spost) tick infestation found 51 differentially expressed genes (DEGs), of which almost all presented high variation (TopDEGs), and 38 were redundant genes. Gene expression was consistently different between R and S hosts, suggesting the existence of specific anti-tick mechanisms. In the intragroup comparisons, Rpost vs. Rpre and Spost vs. Spre, we found more than two thousand DEGs in response to tick infestation in both resistance groups. Redundant and non-redundant TopDEGs with potential anti-tick functions suggested a role in the development of different levels of resistance within the same breed. Leukocyte chemotaxis was over-represented in both hosts, whereas skin degradation and remodeling were only found in TopDEGs from R hosts. Also, these genes indicated the participation of cytokines, such as IL6 and IL22, and the activation of Wingless (WNT)-signaling pathway. A central gene of this pathway, WNT7A, was consistently modulated when hosts were compared. Moreover, the findings based on a genome-wide association study (GWAS) corroborate the prediction of the WNT-signaling pathway as a candidate mechanism of resistance. The regulation of immune response was the most relevant pathway predicted for S hosts. Members of Ap1 and NF-kB families were the most relevant TFs predicted for R and S, respectively. Conclusion: This work provides indications of genetic mechanisms presented by Braford cattle with different levels of resistance in response to tick infestation, contributing to the search of candidate genes for tick resistance in bovine. MenosBackground: Genetic resistance in cattle is considered a suitable way to control tick burden and its consequent losses for livestock production. Exploring tick-resistant (R) and tick-susceptible (S) hosts, we investigated the genetic mechanisms underlying the variation of Braford resistance to tick infestation. Skin biopsies from four-times-artificially infested R (n = 20) and S (n = 19) hosts, obtained before the first and 24 h after the fourth tick infestation were submitted to RNA-Sequencing. Differential gene expression, functional enrichment, and network analysis were performed to identify genetic pathways and transcription factors (TFs) affecting host resistance. Results: Intergroup comparisons of hosts before (Rpre vs. Spre) and after (Rpost vs. Spost) tick infestation found 51 differentially expressed genes (DEGs), of which almost all presented high variation (TopDEGs), and 38 were redundant genes. Gene expression was consistently different between R and S hosts, suggesting the existence of specific anti-tick mechanisms. In the intragroup comparisons, Rpost vs. Rpre and Spost vs. Spre, we found more than two thousand DEGs in response to tick infestation in both resistance groups. Redundant and non-redundant TopDEGs with potential anti-tick functions suggested a role in the development of different levels of resistance within the same breed. Leukocyte chemotaxis was over-represented in both hosts, whereas skin degradation and remodeling were only found in TopDEGs from... Mostrar Tudo |
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Palavras-Chave: |
Bovine; Braford; Enrichment analysis; Expressão gênica; Gado Braford; Network analysis; RNA-Seq. |
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Thesagro: |
Bovino; Carrapato; Resistência; Resistência Genética. |
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Thesaurus NAL: |
Cattle; Gene expression; Rhipicephalus microplus; Tick infestations. |
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Categoria do assunto: |
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L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208137/1/More-et-al-2019.pdf
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Marc: |
LEADER 03479naa a2200409 a 4500
001 2118135
005 2020-01-03
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1186/s12864-019-6360-3$2DOI
100 1 $aMORÉ, D. D.
245 $aNetwork analysis uncovers putative genes affecting resistance to tick infestation in Braford cattle skin.$h[electronic resource]
260 $c2019
520 $aBackground: Genetic resistance in cattle is considered a suitable way to control tick burden and its consequent losses for livestock production. Exploring tick-resistant (R) and tick-susceptible (S) hosts, we investigated the genetic mechanisms underlying the variation of Braford resistance to tick infestation. Skin biopsies from four-times-artificially infested R (n = 20) and S (n = 19) hosts, obtained before the first and 24 h after the fourth tick infestation were submitted to RNA-Sequencing. Differential gene expression, functional enrichment, and network analysis were performed to identify genetic pathways and transcription factors (TFs) affecting host resistance. Results: Intergroup comparisons of hosts before (Rpre vs. Spre) and after (Rpost vs. Spost) tick infestation found 51 differentially expressed genes (DEGs), of which almost all presented high variation (TopDEGs), and 38 were redundant genes. Gene expression was consistently different between R and S hosts, suggesting the existence of specific anti-tick mechanisms. In the intragroup comparisons, Rpost vs. Rpre and Spost vs. Spre, we found more than two thousand DEGs in response to tick infestation in both resistance groups. Redundant and non-redundant TopDEGs with potential anti-tick functions suggested a role in the development of different levels of resistance within the same breed. Leukocyte chemotaxis was over-represented in both hosts, whereas skin degradation and remodeling were only found in TopDEGs from R hosts. Also, these genes indicated the participation of cytokines, such as IL6 and IL22, and the activation of Wingless (WNT)-signaling pathway. A central gene of this pathway, WNT7A, was consistently modulated when hosts were compared. Moreover, the findings based on a genome-wide association study (GWAS) corroborate the prediction of the WNT-signaling pathway as a candidate mechanism of resistance. The regulation of immune response was the most relevant pathway predicted for S hosts. Members of Ap1 and NF-kB families were the most relevant TFs predicted for R and S, respectively. Conclusion: This work provides indications of genetic mechanisms presented by Braford cattle with different levels of resistance in response to tick infestation, contributing to the search of candidate genes for tick resistance in bovine.
650 $aCattle
650 $aGene expression
650 $aRhipicephalus microplus
650 $aTick infestations
650 $aBovino
650 $aCarrapato
650 $aResistência
650 $aResistência Genética
653 $aBovine
653 $aBraford
653 $aEnrichment analysis
653 $aExpressão gênica
653 $aGado Braford
653 $aNetwork analysis
653 $aRNA-Seq
700 1 $aCARDOSO, F. F.
700 1 $aMUDADU, M. de A.
700 1 $aMALAGO JUNIOR, W.
700 1 $aGULIAS GOMES, C. C.
700 1 $aSOLLERO, B. P.
700 1 $aIBELLI, A. M. G.
700 1 $aCOUTINHO, L. L.
700 1 $aREGITANO, L. C. de A.
773 $tBMC Genomics$gv. 20, n. 998, 2019.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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