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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Ocidental. Para informações adicionais entre em contato com cpaa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
17/09/1999 |
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Data da última atualização: |
18/01/2019 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
BARCELOS, E.; SECOND, G.; KAHN, F.; AMBLARD, P.; LEBRUN, P.; SEGUIN, M. |
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Afiliação: |
EDSON BARCELOS DA SILVA, CPAA. |
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Título: |
Molecular markers applied to the analysis of genetic diversity and to the biogeography of Elaeis (Palmae). |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
In: HENDERSON, A.; BORCHSENIUS, R. (Ed.). Evolution, variation, and classification of palms. Bronx: NYBG, 1999. |
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Páginas: |
p. 191-201. |
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Idioma: |
Inglês |
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Conteúdo: |
Genetic diversity in the genus Elaeis was evaluated by the restriction fragment length polymorphism (RFLP) and amplified fragment length polymorphism (AFLPtm) techniques, on a set of accessions from E. oleifera (241 accessions), E. guineensis (39), and Barcella odora (three accessions), representing the geographical areas of distribution for the genus. RFLPs were detected by hybridizing 13 nuclear and four mitochondrial probes onto blots of total DNA extracted from individuals and digested by one of the following restriction enzymes: EcoRI, Bg/II, SstI, or EcoRV. AFLP was performed on a subset of the same individuals using only one primer combination. Factorial analysis of correspondences and cluster analysis of one primer combination. Factorial analysis of correspondences and cluster analysis of the polymorphic fragments, scored as dominant markers, revealed, independently for the nuclear and the cytoplasmic markers, a striking specific specific and geographical structuring. Moreover, an interesting feature is that the AFLP gave the same results as the nuclear RFLP in terms of genetic diversity analysis. This study reveals a strong structuring inseide E. oleifera, according to the geographical origin, and also a slight intraregional structure within the Brazilian-Amazonian origins of the material studied. |
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Palavras-Chave: |
Barcella odora. |
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Thesagro: |
Caiaué; Dendê; Distribuição Geográfica; Elaeis Guineensis; Elaeis Oleifera; Marcador Genético; Variação Genética. |
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Thesaurus Nal: |
biogeography; genetic markers; genetic variation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02283naa a2200325 a 4500
001 1668370
005 2019-01-18
008 1999 bl uuuu u00u1 u #d
100 1 $aBARCELOS, E.
245 $aMolecular markers applied to the analysis of genetic diversity and to the biogeography of Elaeis (Palmae).
260 $c1999
300 $ap. 191-201.
520 $aGenetic diversity in the genus Elaeis was evaluated by the restriction fragment length polymorphism (RFLP) and amplified fragment length polymorphism (AFLPtm) techniques, on a set of accessions from E. oleifera (241 accessions), E. guineensis (39), and Barcella odora (three accessions), representing the geographical areas of distribution for the genus. RFLPs were detected by hybridizing 13 nuclear and four mitochondrial probes onto blots of total DNA extracted from individuals and digested by one of the following restriction enzymes: EcoRI, Bg/II, SstI, or EcoRV. AFLP was performed on a subset of the same individuals using only one primer combination. Factorial analysis of correspondences and cluster analysis of one primer combination. Factorial analysis of correspondences and cluster analysis of the polymorphic fragments, scored as dominant markers, revealed, independently for the nuclear and the cytoplasmic markers, a striking specific specific and geographical structuring. Moreover, an interesting feature is that the AFLP gave the same results as the nuclear RFLP in terms of genetic diversity analysis. This study reveals a strong structuring inseide E. oleifera, according to the geographical origin, and also a slight intraregional structure within the Brazilian-Amazonian origins of the material studied.
650 $abiogeography
650 $agenetic markers
650 $agenetic variation
650 $aCaiaué
650 $aDendê
650 $aDistribuição Geográfica
650 $aElaeis Guineensis
650 $aElaeis Oleifera
650 $aMarcador Genético
650 $aVariação Genética
653 $aBarcella odora
700 1 $aSECOND, G.
700 1 $aKAHN, F.
700 1 $aAMBLARD, P.
700 1 $aLEBRUN, P.
700 1 $aSEGUIN, M.
773 $tIn: HENDERSON, A.; BORCHSENIUS, R. (Ed.). Evolution, variation, and classification of palms. Bronx: NYBG, 1999.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação; Embrapa Territorial. |
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Data corrente: |
16/09/2020 |
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Data da última atualização: |
17/09/2020 |
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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: |
REAL, L. S. C.; CRESTANA, S.; FERREIRA, R. R. M.; RODRIGUES, V. G. S. |
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Afiliação: |
LIGIA SAMPAIO CORTE REAL, USP; SILVIO CRESTANA, CNPDIA; ROGERIO RESENDE MARTINS FERREIRA, CNPM; VALÉRIA GUIMARÃES SILVESTRE RODRIGUES, USP. |
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Título: |
Evaluation of gully development over several years using GIS and fractal analysis: a case study of the Palmital watershed, Minas Gerais (Brazil). |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Environmental Monitoring and Assessment, v. 192, n. 434, 2020. |
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Páginas: |
22 p. |
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ISSN: |
0167-6369 |
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DOI: |
https://doi.org/10.1007/s10661-020-08362-7 |
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Idioma: |
Inglês |
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Conteúdo: |
Soil erosion affects agricultural production by reducing the area of rural properties and altering the dynamics of watersheds. Gullies are a complex and irregular type of erosion form that can reach large dimensions, and studying gullies to stabilize erosion processes is a challenge. This study aims to understand their environmental relationships as a basis for future research and to recover land degraded by soil erosion. We combined mapping techniques using geographic information system (GIS) with temporal evolution of land use and fractal dimensions of gullies using FracLac to determine the stability of gullies in a watershed in south Minas Gerais (Brazil). We used R software to apply linear regressions and tested the statistics to verify the compatibility of the model. Environmental characteristics of the watershed contribute to the formation of gullies, but human activities influence the deflagration of these features. The temporal evolution of the land use demonstrated that nearly 50%of the watershed was used as pastures throughout the years, which contributed to soil degradation. The evolution of the fractal dimension showed fluctuations over the years, indicating that the gullies are not stable. The regressions suggest that the vegetation, geology, land use, channel order, and curvature may influence the fractal dimensions of gullies. We concluded that human activity influences the evolution of gullies; the use of techniques such as vegetation measures can contribute to the stabilization of gullies. We also concluded that fractal analysis is an interesting tool for performing environmental evaluations of irregular and complex features, such as gullies. MenosSoil erosion affects agricultural production by reducing the area of rural properties and altering the dynamics of watersheds. Gullies are a complex and irregular type of erosion form that can reach large dimensions, and studying gullies to stabilize erosion processes is a challenge. This study aims to understand their environmental relationships as a basis for future research and to recover land degraded by soil erosion. We combined mapping techniques using geographic information system (GIS) with temporal evolution of land use and fractal dimensions of gullies using FracLac to determine the stability of gullies in a watershed in south Minas Gerais (Brazil). We used R software to apply linear regressions and tested the statistics to verify the compatibility of the model. Environmental characteristics of the watershed contribute to the formation of gullies, but human activities influence the deflagration of these features. The temporal evolution of the land use demonstrated that nearly 50%of the watershed was used as pastures throughout the years, which contributed to soil degradation. The evolution of the fractal dimension showed fluctuations over the years, indicating that the gullies are not stable. The regressions suggest that the vegetation, geology, land use, channel order, and curvature may influence the fractal dimensions of gullies. We concluded that human activity influences the evolution of gullies; the use of techniques such as vegetation measures can contribute ... Mostrar Tudo |
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Palavras-Chave: |
Erosion; Land uses. |
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Thesaurus NAL: |
Fractal dimensions; Soil degradation; Soil erosion. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02501naa a2200253 a 4500
001 2125008
005 2020-09-17
008 2020 bl uuuu u00u1 u #d
022 $a0167-6369
024 7 $ahttps://doi.org/10.1007/s10661-020-08362-7$2DOI
100 1 $aREAL, L. S. C.
245 $aEvaluation of gully development over several years using GIS and fractal analysis$ba case study of the Palmital watershed, Minas Gerais (Brazil).$h[electronic resource]
260 $c2020
300 $a22 p.
520 $aSoil erosion affects agricultural production by reducing the area of rural properties and altering the dynamics of watersheds. Gullies are a complex and irregular type of erosion form that can reach large dimensions, and studying gullies to stabilize erosion processes is a challenge. This study aims to understand their environmental relationships as a basis for future research and to recover land degraded by soil erosion. We combined mapping techniques using geographic information system (GIS) with temporal evolution of land use and fractal dimensions of gullies using FracLac to determine the stability of gullies in a watershed in south Minas Gerais (Brazil). We used R software to apply linear regressions and tested the statistics to verify the compatibility of the model. Environmental characteristics of the watershed contribute to the formation of gullies, but human activities influence the deflagration of these features. The temporal evolution of the land use demonstrated that nearly 50%of the watershed was used as pastures throughout the years, which contributed to soil degradation. The evolution of the fractal dimension showed fluctuations over the years, indicating that the gullies are not stable. The regressions suggest that the vegetation, geology, land use, channel order, and curvature may influence the fractal dimensions of gullies. We concluded that human activity influences the evolution of gullies; the use of techniques such as vegetation measures can contribute to the stabilization of gullies. We also concluded that fractal analysis is an interesting tool for performing environmental evaluations of irregular and complex features, such as gullies.
650 $aFractal dimensions
650 $aSoil degradation
650 $aSoil erosion
653 $aErosion
653 $aLand uses
700 1 $aCRESTANA, S.
700 1 $aFERREIRA, R. R. M.
700 1 $aRODRIGUES, V. G. S.
773 $tEnvironmental Monitoring and Assessment$gv. 192, n. 434, 2020.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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