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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
07/10/2003 |
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Data da última atualização: |
07/10/2003 |
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Autoria: |
ANDRADE, S. R. M.; SANT'ANNA, J.; MOSQUIM, P. R. |
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Título: |
Efeito da producao NH4+/NO3- na distribuicao de nitrato e na atividade in vitro da redutase do nitrato de plantas de Panicum maximum. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Planaltina: Embrapa Cerrados, 2001. |
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Páginas: |
16 p. |
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Série: |
(Embrapa Cerrados. Boletim de Pesquisa e Desenvolvimento, 12). |
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Idioma: |
Português |
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Conteúdo: |
O objetivo deste trabalho foi estudar os efeitos da nutricao nitrica e amoniacal na distribuicao de nitrato e na atividade in vitro da redutase do nitrato em plantas de capim coloniao ( Panicum maximum Jacq.). as plantas receberam 7 mM de nitrogenio nas forma N- NH4 +, N-NO3- ou combinadas nas seguintes proporcoes 0/100, 25/75, 50/50, 75/25 e 100/0. A extracao enzigmatica foi feita em Tris-HCI 50mM pH 7,5, EDTA 0,5 mM e b-mercaptoetanol 10mM, e para o ensaio utilizou-se 200 mmoles de Tris-HCI pH 7,5, 20 mmoles KNO3, 0,1 mmol NADH e 0,1 mL de Triton X-100 1% no volume final de 2,0 mL. A concentracao de nitrato foi levemente superior na parte aerea quando as plantas receberam ambas as formas de nitrogenio, e na raiz seta decresceu com o aumento da proporcao de aminio. A atividade in vitro de redutase do nitrato so foi observada nas folhas e foi maior quando as plantas receberam ambas as formas de nitrogenio. Os resultados sugerem um efeito estimulador do amonio no tranporte de nitrato e na atividade de redutase do nitrato quando NO3- esta presente. |
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Thesagro: |
Capim Colonião; Cerrado; Fisiologia Vegetal; Nitrato; Nitrogênio; Panicum Maximum. |
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Categoria do assunto: |
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Marc: |
LEADER 01780nam a2200229 a 4500
001 1567230
005 2003-10-07
008 2001 bl uuuu u0uu1 u #d
100 1 $aANDRADE, S. R. M.
245 $aEfeito da producao NH4+/NO3- na distribuicao de nitrato e na atividade in vitro da redutase do nitrato de plantas de Panicum maximum.
260 $aPlanaltina: Embrapa Cerrados$c2001
300 $a16 p.
490 $a(Embrapa Cerrados. Boletim de Pesquisa e Desenvolvimento, 12).
520 $aO objetivo deste trabalho foi estudar os efeitos da nutricao nitrica e amoniacal na distribuicao de nitrato e na atividade in vitro da redutase do nitrato em plantas de capim coloniao ( Panicum maximum Jacq.). as plantas receberam 7 mM de nitrogenio nas forma N- NH4 +, N-NO3- ou combinadas nas seguintes proporcoes 0/100, 25/75, 50/50, 75/25 e 100/0. A extracao enzigmatica foi feita em Tris-HCI 50mM pH 7,5, EDTA 0,5 mM e b-mercaptoetanol 10mM, e para o ensaio utilizou-se 200 mmoles de Tris-HCI pH 7,5, 20 mmoles KNO3, 0,1 mmol NADH e 0,1 mL de Triton X-100 1% no volume final de 2,0 mL. A concentracao de nitrato foi levemente superior na parte aerea quando as plantas receberam ambas as formas de nitrogenio, e na raiz seta decresceu com o aumento da proporcao de aminio. A atividade in vitro de redutase do nitrato so foi observada nas folhas e foi maior quando as plantas receberam ambas as formas de nitrogenio. Os resultados sugerem um efeito estimulador do amonio no tranporte de nitrato e na atividade de redutase do nitrato quando NO3- esta presente.
650 $aCapim Colonião
650 $aCerrado
650 $aFisiologia Vegetal
650 $aNitrato
650 $aNitrogênio
650 $aPanicum Maximum
700 1 $aSANT'ANNA, J.
700 1 $aMOSQUIM, P. R.
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Registro original: |
Embrapa Cerrados (CPAC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroenergia. Para informações adicionais entre em contato com cnpae.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agroenergia; Embrapa Uva e Vinho. |
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Data corrente: |
10/12/2021 |
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Data da última atualização: |
10/02/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
LAVIOLA, B. G.; SANTOS, A. dos; RODRIGUES, E. V.; TEODORO, L. P. R.; TEODORO, P. E.; ROSADO, T. B.; GUIMARÃES, C. G.; CONCEIÇÃO, L. D. H. C. S. DA. |
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Afiliação: |
BRUNO GALVEAS LAVIOLA, CNPAE; ADRIANO DOS SANTOS, A&E Statistical Analysis and Consulting; ERINA VITÓRIO RODRIGUES, Universidade de Brasília; LARISSA PEREIRA RIBEIRO TEODORO, Universidade Federal do Mato Grosso do Sul; PAULO EDUARDO TEODORO, Universidade Federal do Mato Grosso do Sul; TATIANA BARBOSA ROSADO, Universidade de Brasília; CINTIA GONÇALVES GUIMARÃES, Universidade Federal dos Vales do Jequitinhonha e Mucuri; LEO DUC HAA CARSON SCHWARTZHAUPT DA, CNPUV. |
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Título: |
Structure and genetic diversity of macauba [Acrocomia aculeata (Jacq.) Lodd. ex Mart.] approached by SNP markers to assist breeding strategies. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Genetic Resources and Crop Evolution, v. 69, p. 1179-1191, Nov. 2021. |
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Páginas: |
13 p. |
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Descrição Física: |
PDF: il. color. |
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DOI: |
https://doi.org/10.1007/s10722-021-01295-1 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Macauba palm [Acrocomia aculeata (Jacq.) Lodd. ex Mart.] is a perennial oil, it stands out for having several characteristics of commercial interest, mainly for producing oil for biodiesel, it has high oil productivity, about 2.5 to 4.5 L·year-1. Despite its great potential, o its cultivation is carried out mainly in an extractive way, so the domestication and breeding programs has been incipient. The study hypothesis is that macauba populations collected in different locations have sufficient genetic variability to initiate a breeding program. Thus, the aim of this study was to estimate the genetic diversity and population structure of macauba palm genotypes by using single nucleotide polymorphism (SNP) markers in order to reveal genetic diversity and distribution of genetic variation within and between populations and use the genetic information obtained to assist breeding strategies. Leaf tissues were collected from 566 macauba plants belonging to the Embrapa Cerrados Active Germplasm Bank, composed of genotypes from five states in Brazil: Minas Gerais, Goiás, Pará, São Paulo, and Distrito Federal. Molecular variance analysis estimated, the genetic diversity parameters, the population structure and principal coordinate analysis. The genetic diversity is higher within than between populations. The results provided by PCoA and STRUCTURE were in agreement and indicated that the evaluated genotypes can be grouped into two groups. Genetic diversity parameters reveal the presence of inbreeding and a low number of heterozygotes, evidencing that the reproduction system of the species is mixed. The information revealed of the genotypes using SNP markers will be important for future studies using genome-wide selection and genomic association to develop cultivars of macauba with desirable traits, such as high yield of fruits and oil production. MenosAbstract: Macauba palm [Acrocomia aculeata (Jacq.) Lodd. ex Mart.] is a perennial oil, it stands out for having several characteristics of commercial interest, mainly for producing oil for biodiesel, it has high oil productivity, about 2.5 to 4.5 L·year-1. Despite its great potential, o its cultivation is carried out mainly in an extractive way, so the domestication and breeding programs has been incipient. The study hypothesis is that macauba populations collected in different locations have sufficient genetic variability to initiate a breeding program. Thus, the aim of this study was to estimate the genetic diversity and population structure of macauba palm genotypes by using single nucleotide polymorphism (SNP) markers in order to reveal genetic diversity and distribution of genetic variation within and between populations and use the genetic information obtained to assist breeding strategies. Leaf tissues were collected from 566 macauba plants belonging to the Embrapa Cerrados Active Germplasm Bank, composed of genotypes from five states in Brazil: Minas Gerais, Goiás, Pará, São Paulo, and Distrito Federal. Molecular variance analysis estimated, the genetic diversity parameters, the population structure and principal coordinate analysis. The genetic diversity is higher within than between populations. The results provided by PCoA and STRUCTURE were in agreement and indicated that the evaluated genotypes can be grouped into two groups. Genetic diversity parameters reveal ... Mostrar Tudo |
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Palavras-Chave: |
Banco de Germoplasma da Embrapa Cerrados; Breeding programs; Genetic diversity. |
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Thesagro: |
Macaúba. |
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Thesaurus NAL: |
Acrocomia; Bioenergy; Genetic variation; Genotyping; Plant breeding; Single nucleotide polymorphism. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 03026naa a2200349 a 4500
001 2137551
005 2023-02-10
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10722-021-01295-1$2DOI
100 1 $aLAVIOLA, B. G.
245 $aStructure and genetic diversity of macauba [Acrocomia aculeata (Jacq.) Lodd. ex Mart.] approached by SNP markers to assist breeding strategies.$h[electronic resource]
260 $c2021
300 $a13 p.$cPDF: il. color.
520 $aAbstract: Macauba palm [Acrocomia aculeata (Jacq.) Lodd. ex Mart.] is a perennial oil, it stands out for having several characteristics of commercial interest, mainly for producing oil for biodiesel, it has high oil productivity, about 2.5 to 4.5 L·year-1. Despite its great potential, o its cultivation is carried out mainly in an extractive way, so the domestication and breeding programs has been incipient. The study hypothesis is that macauba populations collected in different locations have sufficient genetic variability to initiate a breeding program. Thus, the aim of this study was to estimate the genetic diversity and population structure of macauba palm genotypes by using single nucleotide polymorphism (SNP) markers in order to reveal genetic diversity and distribution of genetic variation within and between populations and use the genetic information obtained to assist breeding strategies. Leaf tissues were collected from 566 macauba plants belonging to the Embrapa Cerrados Active Germplasm Bank, composed of genotypes from five states in Brazil: Minas Gerais, Goiás, Pará, São Paulo, and Distrito Federal. Molecular variance analysis estimated, the genetic diversity parameters, the population structure and principal coordinate analysis. The genetic diversity is higher within than between populations. The results provided by PCoA and STRUCTURE were in agreement and indicated that the evaluated genotypes can be grouped into two groups. Genetic diversity parameters reveal the presence of inbreeding and a low number of heterozygotes, evidencing that the reproduction system of the species is mixed. The information revealed of the genotypes using SNP markers will be important for future studies using genome-wide selection and genomic association to develop cultivars of macauba with desirable traits, such as high yield of fruits and oil production.
650 $aAcrocomia
650 $aBioenergy
650 $aGenetic variation
650 $aGenotyping
650 $aPlant breeding
650 $aSingle nucleotide polymorphism
650 $aMacaúba
653 $aBanco de Germoplasma da Embrapa Cerrados
653 $aBreeding programs
653 $aGenetic diversity
700 1 $aSANTOS, A. dos
700 1 $aRODRIGUES, E. V.
700 1 $aTEODORO, L. P. R.
700 1 $aTEODORO, P. E.
700 1 $aROSADO, T. B.
700 1 $aGUIMARÃES, C. G.
700 1 $aCONCEIÇÃO, L. D. H. C. S. DA
773 $tGenetic Resources and Crop Evolution$gv. 69, p. 1179-1191, Nov. 2021.
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Embrapa Uva e Vinho (CNPUV) |
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