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Registro Completo |
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Biblioteca(s): |
Embrapa Amapá; Embrapa Rondônia. |
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Data corrente: |
24/04/2000 |
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Data da última atualização: |
05/10/2022 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
PEREIRA, L. A. F.; MORAES, M. J. da S. |
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Afiliação: |
LUIZ ALBERTO FREITAS PEREIRA, CPAF-AP. |
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Título: |
Agricultura familiar: sistemas de produção em uso na região da Perimetral Norte-AP. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Macapá: Embrapa Amapá, 1999. |
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Páginas: |
21 p. |
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Série: |
(Embrapa Amapá. Documentos, 13). |
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Idioma: |
Português |
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Conteúdo: |
Introdução; Origem e processo de ocupação da região; O debate sobre agricultura familiar na Amazônia; Metodologia; Os sistemas de produção na Perimetral Norte; Conclusões; Referências bibliográficas. |
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Thesagro: |
Agricultura Familiar. |
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Thesaurus Nal: |
family farms. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00706nam a2200169 a 4500
001 1344614
005 2022-10-05
008 1999 bl uuuu u0uu1 u #d
100 1 $aPEREIRA, L. A. F.
245 $aAgricultura familiar$bsistemas de produção em uso na região da Perimetral Norte-AP.
260 $aMacapá: Embrapa Amapá$c1999
300 $a21 p.
490 $a(Embrapa Amapá. Documentos, 13).
520 $aIntrodução; Origem e processo de ocupação da região; O debate sobre agricultura familiar na Amazônia; Metodologia; Os sistemas de produção na Perimetral Norte; Conclusões; Referências bibliográficas.
650 $afamily farms
650 $aAgricultura Familiar
700 1 $aMORAES, M. J. da S.
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Registro original: |
Embrapa Amapá (CPAF-AP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroenergia; Embrapa Amazônia Ocidental; Embrapa Milho e Sorgo. |
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Data corrente: |
02/12/2020 |
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Data da última atualização: |
11/01/2021 |
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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: |
PEREIRA, V. M.; FERREIRA FILHO, J. A.; LEAO, A. P.; VARGAS, L. H. G.; FARIAS, M. P. de; RIOS, S. de A.; CUNHA, R. N. V. da; FORMIGHIERI, E. F.; ALVES, A. A.; SOUZA JUNIOR, M. T. |
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Afiliação: |
Valquíria Martins Pereira, Universidade Federal de Lavras; Jaire Alves Ferreira Filho, Universidade Federal de Lavras; ANDRE PEREIRA LEAO, CNPAE; Luiz Henrique Galli Vargas, Universidade Federal de Lavras; Marcelo Picanço de Farias, Universidade Federal de Lavras; SARA DE ALMEIDA RIOS, CNPMS; RAIMUNDO NONATO VIEIRA DA CUNHA, CPAA; EDUARDO FERNANDES FORMIGHIERI, CNPAE; ALEXANDRE ALONSO ALVES, CNPAE; MANOEL TEIXEIRA SOUZA JUNIOR, CNPAE. |
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Título: |
American oil palm from Brazil: Genetic diversity, population structure, and core collection. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Crop Science, v. 60, p. 3212-3227, Nov./Dec. 2020. |
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Descrição Física: |
il. |
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DOI: |
https://doi.org/10.1002/csc2.20276 |
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Idioma: |
Inglês |
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Conteúdo: |
The American oil palm [Elaeis oleifera (Knuth) Cortés] has pronounced importance in oil palm breeding programs. Here, a germplasm bank (GB) of E. oleifera plants collected in the Amazon rainforest in Brazil was submitted to single nucleotide polymorphism (SNP) marker identification, selection, and use, aiming to characterize genetic diversity and population structure and to design a core collection (CC). Five hundred and fifty-three plants from 206 subsamples, collected at 19 localities spread throughout six geographic regions, were submitted to genotyping-by-sequencing analysis. A set of 1,827 high-quality SNP markers was then selected and used to run the genetic diversity and population structure analysis. The genetic diversity found is of moderate degree, and probably only a small portion of the species diversity is represented in the collection. The possible reason for that is the collecting strategy used, which collected subsamples only around the most prominent watercourses in the region. The average degree of genetic differentiation among subsamples is very high, indicating the presence of high interpopulation differentiation. The collection showed a low level of endogamy. The low average gene flow found indicates that genetic isolation caused by drift is occurring, and there is a need to review the conservation strategy. A set of 245 SNPs distributed throughout all 16 chromosomes was used to design CC based on maximizing the strategy of diversity. The optimal adjustment of the validated parameters, maintained while taking fewest subsamples, led to the choice of a model containing 20% of the entire collection as the ideal to form the CC. MenosThe American oil palm [Elaeis oleifera (Knuth) Cortés] has pronounced importance in oil palm breeding programs. Here, a germplasm bank (GB) of E. oleifera plants collected in the Amazon rainforest in Brazil was submitted to single nucleotide polymorphism (SNP) marker identification, selection, and use, aiming to characterize genetic diversity and population structure and to design a core collection (CC). Five hundred and fifty-three plants from 206 subsamples, collected at 19 localities spread throughout six geographic regions, were submitted to genotyping-by-sequencing analysis. A set of 1,827 high-quality SNP markers was then selected and used to run the genetic diversity and population structure analysis. The genetic diversity found is of moderate degree, and probably only a small portion of the species diversity is represented in the collection. The possible reason for that is the collecting strategy used, which collected subsamples only around the most prominent watercourses in the region. The average degree of genetic differentiation among subsamples is very high, indicating the presence of high interpopulation differentiation. The collection showed a low level of endogamy. The low average gene flow found indicates that genetic isolation caused by drift is occurring, and there is a need to review the conservation strategy. A set of 245 SNPs distributed throughout all 16 chromosomes was used to design CC based on maximizing the strategy of diversity. The optimal adjustm... Mostrar Tudo |
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Palavras-Chave: |
American oil palm; Brazilian Elaeis oleifera; Diversidade genética. |
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Thesagro: |
Banco de Germoplasma; Dendê; Melhoramento Genético Vegetal; Óleo. |
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Thesaurus NAL: |
Breeding and Genetic Improvement; Genetic improvement. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/220143/1/American-oil-palm-2020.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225602/1/American-oil.pdf
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Marc: |
LEADER 02765naa a2200361 a 4500
001 2127457
005 2021-01-11
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1002/csc2.20276$2DOI
100 1 $aPEREIRA, V. M.
245 $aAmerican oil palm from Brazil$bGenetic diversity, population structure, and core collection.$h[electronic resource]
260 $c2020
300 $cil.
520 $aThe American oil palm [Elaeis oleifera (Knuth) Cortés] has pronounced importance in oil palm breeding programs. Here, a germplasm bank (GB) of E. oleifera plants collected in the Amazon rainforest in Brazil was submitted to single nucleotide polymorphism (SNP) marker identification, selection, and use, aiming to characterize genetic diversity and population structure and to design a core collection (CC). Five hundred and fifty-three plants from 206 subsamples, collected at 19 localities spread throughout six geographic regions, were submitted to genotyping-by-sequencing analysis. A set of 1,827 high-quality SNP markers was then selected and used to run the genetic diversity and population structure analysis. The genetic diversity found is of moderate degree, and probably only a small portion of the species diversity is represented in the collection. The possible reason for that is the collecting strategy used, which collected subsamples only around the most prominent watercourses in the region. The average degree of genetic differentiation among subsamples is very high, indicating the presence of high interpopulation differentiation. The collection showed a low level of endogamy. The low average gene flow found indicates that genetic isolation caused by drift is occurring, and there is a need to review the conservation strategy. A set of 245 SNPs distributed throughout all 16 chromosomes was used to design CC based on maximizing the strategy of diversity. The optimal adjustment of the validated parameters, maintained while taking fewest subsamples, led to the choice of a model containing 20% of the entire collection as the ideal to form the CC.
650 $aBreeding and Genetic Improvement
650 $aGenetic improvement
650 $aBanco de Germoplasma
650 $aDendê
650 $aMelhoramento Genético Vegetal
650 $aÓleo
653 $aAmerican oil palm
653 $aBrazilian Elaeis oleifera
653 $aDiversidade genética
700 1 $aFERREIRA FILHO, J. A.
700 1 $aLEAO, A. P.
700 1 $aVARGAS, L. H. G.
700 1 $aFARIAS, M. P. de
700 1 $aRIOS, S. de A.
700 1 $aCUNHA, R. N. V. da
700 1 $aFORMIGHIERI, E. F.
700 1 $aALVES, A. A.
700 1 $aSOUZA JUNIOR, M. T.
773 $tCrop Science$gv. 60, p. 3212-3227, Nov./Dec. 2020.
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Embrapa Agroenergia (CNPAE) |
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