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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
05/01/2017 |
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Data da última atualização: |
07/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BRITO, V. L. G. de; MORI, G. M.; VIGNA, B. B. Z.; SILVA, M. A.; SOUZA, A. P. de; SAZIMA, M. |
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Afiliação: |
Vinicius Lourenço Garcia de Brito, UFU; Gustavo Maruyama Mori, UNESP; BIANCA BACCILI ZANOTTO VIGNA, CPPSE; Marianne Azevedo Silva, UNICAMP; Anete Pereira de Souza, UNICAMP; Marlies Sazima, UNICAMP. |
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Título: |
Genetic structure and diversity of populations of polyploid Tibouchina pulchra Cogn. (Melastomataceae) under different environmental conditions in extremes of an elevational gradient. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Tree Genetics & Genomes, v. 12, n. 101, p. 1-12, 2016. |
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DOI: |
10.1007/s11295-016-1059-y |
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Idioma: |
Português |
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Conteúdo: |
The genetic structure and diversity of plants may change significantly in an elevational gradient because different elevations regulate different ecological conditions. Several factors may influence genetic variation, such as mutations, selection, genetic drift, and gene flow. The aim of the present study was to evaluate the genetic structure and diversity of populations of Tibouchina pulchra Cogn. (Melastomataceae) trees in two extremes of an elevational gradient experiencing different environmental conditions. Nine polymorphic microsatellite loci were used to measure the genetic diversity of 14 adult populations, whose structure was evaluated using frequentist and Bayesian analyses. We also carried out progeny structure and paternity analyses comparing the number of fathers of each progeny and the probability of the progeny genotypes to be the result of selfing in order to evaluate the possible current processes leading to such genetic structure. Genetic structure analyses indicated the existence of genetic differentiation between populations in adults and progenies, but with a contact interface between them. The population from the higher region showed smaller genetic diversity when compared to the population at the lower region. However, the pollen variability delivered to the stigmas at the higher region was not different from that of the lower region. These results may be explained by the dynamics of gene flow mediated by pollen, especially by the different amounts of pollination events in each region, as well as local adaptation, distribution, and reproduction characteristics of T. pulchra. MenosThe genetic structure and diversity of plants may change significantly in an elevational gradient because different elevations regulate different ecological conditions. Several factors may influence genetic variation, such as mutations, selection, genetic drift, and gene flow. The aim of the present study was to evaluate the genetic structure and diversity of populations of Tibouchina pulchra Cogn. (Melastomataceae) trees in two extremes of an elevational gradient experiencing different environmental conditions. Nine polymorphic microsatellite loci were used to measure the genetic diversity of 14 adult populations, whose structure was evaluated using frequentist and Bayesian analyses. We also carried out progeny structure and paternity analyses comparing the number of fathers of each progeny and the probability of the progeny genotypes to be the result of selfing in order to evaluate the possible current processes leading to such genetic structure. Genetic structure analyses indicated the existence of genetic differentiation between populations in adults and progenies, but with a contact interface between them. The population from the higher region showed smaller genetic diversity when compared to the population at the lower region. However, the pollen variability delivered to the stigmas at the higher region was not different from that of the lower region. These results may be explained by the dynamics of gene flow mediated by pollen, especially by the different amounts of ... Mostrar Tudo |
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Palavras-Chave: |
Atlantic rainforest. |
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Thesagro: |
Genética vegetal. |
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Thesaurus Nal: |
Genetic variation; pollen flow; polyploidy. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02467naa a2200253 a 4500
001 2059947
005 2018-11-07
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1007/s11295-016-1059-y$2DOI
100 1 $aBRITO, V. L. G. de
245 $aGenetic structure and diversity of populations of polyploid Tibouchina pulchra Cogn. (Melastomataceae) under different environmental conditions in extremes of an elevational gradient.$h[electronic resource]
260 $c2016
520 $aThe genetic structure and diversity of plants may change significantly in an elevational gradient because different elevations regulate different ecological conditions. Several factors may influence genetic variation, such as mutations, selection, genetic drift, and gene flow. The aim of the present study was to evaluate the genetic structure and diversity of populations of Tibouchina pulchra Cogn. (Melastomataceae) trees in two extremes of an elevational gradient experiencing different environmental conditions. Nine polymorphic microsatellite loci were used to measure the genetic diversity of 14 adult populations, whose structure was evaluated using frequentist and Bayesian analyses. We also carried out progeny structure and paternity analyses comparing the number of fathers of each progeny and the probability of the progeny genotypes to be the result of selfing in order to evaluate the possible current processes leading to such genetic structure. Genetic structure analyses indicated the existence of genetic differentiation between populations in adults and progenies, but with a contact interface between them. The population from the higher region showed smaller genetic diversity when compared to the population at the lower region. However, the pollen variability delivered to the stigmas at the higher region was not different from that of the lower region. These results may be explained by the dynamics of gene flow mediated by pollen, especially by the different amounts of pollination events in each region, as well as local adaptation, distribution, and reproduction characteristics of T. pulchra.
650 $aGenetic variation
650 $apollen flow
650 $apolyploidy
650 $aGenética vegetal
653 $aAtlantic rainforest
700 1 $aMORI, G. M.
700 1 $aVIGNA, B. B. Z.
700 1 $aSILVA, M. A.
700 1 $aSOUZA, A. P. de
700 1 $aSAZIMA, M.
773 $tTree Genetics & Genomes$gv. 12, n. 101, p. 1-12, 2016.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
07/10/2022 |
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Data da última atualização: |
13/01/2023 |
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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: |
ARAÚJO, C. de A.; LIRA, J. B. de; MAGALHÃES, A. L. R.; SILVA, T. G. F. da; GOIS, G. C.; ANDRADE, A. P. de; ARAUJO, G. G. L. de; CAMPOS, F. S. |
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Afiliação: |
CLEYTON DE ALMEIDA ARAÚJO, UNIVASF; JACIELE BESERRA DE LIRA, UFPB, Areia, PB; ANDRÉ LUIZ RODRIGUES MAGALHÃES, UFRPE; THIERES GEORGE FREIRE DA SILVA, UFRPE, Garanhuns, PE; GLAYCIANE COSTA GOIS, UNIVASF; ALBERÍCIO PEREIRA DE ANDRADE, UFRPE, Garanhuns, PE; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; FLEMING SENA CAMPOS, Bolsista CNPq. |
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Título: |
Pearl millet cultivation with brackish water and organic fertilizeralters soil properties. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Ciência Animal Brasileira, v. 22, e-70056, 2021. |
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ISSN: |
1809-6891 |
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DOI: |
10.1590/1809-6891v22e-70056 |
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Idioma: |
Inglês |
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Conteúdo: |
Semi-arid regions are characterized by high evapotranspiration and low rainfall, favoring the accumulation of salts when irrigated with brackish water. The aim of this study was to evaluate the effect of pearl millet cultivation with brackish water levels and fertilized with organic fertilizer on the chemical and physical properties of the soil. A split plot randomized block design was adopted, in a factorial arrangement, with three repetitions. Plots consisted of four irrigation levels (25, 50, 75 and 100% crop evapotranspiration) and subplots consisted of four levels of organic fertilizer (0; 15; 30 and 45 Mg ha-1). At the end of the pearl millet production cycle, soil was collected from layers 0-0.20 m and 0.20-0.40 m, for physical (soil bulk density, particle density and porosity) and chemical (EC, pH, K, Na, Ca, Mg, H + Al, SB, CEC, V) properties. There was no effect of interaction of brackish water levels and organic fertilizer levels on soil chemical properties. Brackish water reduced potassium on layer 0.20-0.40 m. A negative linear effect was found for density in the 0.20-0.40 m layer under different levels of organic fertilizer. Brackish water levels and organic fertilizer levels in the cultivation of pearl millet does not alter soil chemical and physical properties at the 0-0.20 m layer. However, the use of brackish water reduces the concentration of potassium in the soil and the application of organic fertilizer reduces soil density at the 0.20-0.40 m layer. |
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Palavras-Chave: |
Agricultura biossalina; Biosaline agriculture; Saturação por bases. |
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Thesagro: |
Água Salobra; Milheto; Pastagem; Pennisetum Glaucum. |
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Thesaurus NAL: |
Base saturation; Organic fertilizers. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1147209/1/Pearl-millet-cultivation-with-brackish-water-and-organic-fertilizeralters-soil-properties-2021.pdf
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Marc: |
LEADER 02487naa a2200337 a 4500
001 2147209
005 2023-01-13
008 2021 bl uuuu u00u1 u #d
022 $a1809-6891
024 7 $a10.1590/1809-6891v22e-70056$2DOI
100 1 $aARAÚJO, C. de A.
245 $aPearl millet cultivation with brackish water and organic fertilizeralters soil properties.$h[electronic resource]
260 $c2021
520 $aSemi-arid regions are characterized by high evapotranspiration and low rainfall, favoring the accumulation of salts when irrigated with brackish water. The aim of this study was to evaluate the effect of pearl millet cultivation with brackish water levels and fertilized with organic fertilizer on the chemical and physical properties of the soil. A split plot randomized block design was adopted, in a factorial arrangement, with three repetitions. Plots consisted of four irrigation levels (25, 50, 75 and 100% crop evapotranspiration) and subplots consisted of four levels of organic fertilizer (0; 15; 30 and 45 Mg ha-1). At the end of the pearl millet production cycle, soil was collected from layers 0-0.20 m and 0.20-0.40 m, for physical (soil bulk density, particle density and porosity) and chemical (EC, pH, K, Na, Ca, Mg, H + Al, SB, CEC, V) properties. There was no effect of interaction of brackish water levels and organic fertilizer levels on soil chemical properties. Brackish water reduced potassium on layer 0.20-0.40 m. A negative linear effect was found for density in the 0.20-0.40 m layer under different levels of organic fertilizer. Brackish water levels and organic fertilizer levels in the cultivation of pearl millet does not alter soil chemical and physical properties at the 0-0.20 m layer. However, the use of brackish water reduces the concentration of potassium in the soil and the application of organic fertilizer reduces soil density at the 0.20-0.40 m layer.
650 $aBase saturation
650 $aOrganic fertilizers
650 $aÁgua Salobra
650 $aMilheto
650 $aPastagem
650 $aPennisetum Glaucum
653 $aAgricultura biossalina
653 $aBiosaline agriculture
653 $aSaturação por bases
700 1 $aLIRA, J. B. de
700 1 $aMAGALHÃES, A. L. R.
700 1 $aSILVA, T. G. F. da
700 1 $aGOIS, G. C.
700 1 $aANDRADE, A. P. de
700 1 $aARAUJO, G. G. L. de
700 1 $aCAMPOS, F. S.
773 $tCiência Animal Brasileira$gv. 22, e-70056, 2021.
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