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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
18/03/2008 |
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Data da última atualização: |
23/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALVES, R. M.; SEBBENN, A. M.; ARTERO, A. S.; CLEMENT, C.; FIGUEIRA, A. |
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Afiliação: |
RAFAEL MOYSES ALVES, CPATU; Alexandre M. Sebbenn, Instituto Florestal de São Paulo; Angela S. Artero, USP; Charles Clement, Instituto de Pesquisa da Amazônia; Antonio Figueira, USP. |
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Título: |
High levels of genetic divergence and inbreeding in populations of cupuassu (Theobroma grandiflorum). |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Tree Genetics & Genomes, v. 3, n. 4, p. 289-298, out. 2007. |
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Idioma: |
Inglês |
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Conteúdo: |
Theobroma grandiflorum (cupuassu) is an important fruit tree native to the Brazilian Amazon. Establishing the genetic diversity and structure of populations is critical to define long-term strategies for cupuassu conservation presently threatened by rapid deforestation. Three natural populations collected at the putative center of diversity, three groups of accessions established at a germplasm collection, and one derived from commercial plantings were analyzed. The genetic diversity was assessed using 21 polymorphic microsatellite loci originally developed for Theobroma cacao, disclosing a total of 113 alleles. The estimated genetic diversity parameters averaged over cupuassu populations (A?=?3.53 alleles per locus; H e?=?0.426; H o?=?0.346) were lower than the values reported for other Neotropical tree species. The three natural populations presented a positive and significant fixation index (f), ranging from 0.133 to 0.234. Cupuassu apparently adhered to a general pattern of genetic diversity structure of some Neotropical tree species occurring at low densities, with a low intrapopulation genetic diversity and important levels of endogamy, possibly due to biparental inbreeding derived from the presence of spatial genetic structure in the populations. A high level of genetic divergence was detected among the natural populations (? p?=?0.301), a strong differentiation caused by limited gene flow, and suggesting that human interference in spreading and/or stimulating plantings might have had a smaller effect than expected. The approximate location of the T. grandiflorum center of diversity could not be confirmed by analyzing natural populations from the putative region. MenosTheobroma grandiflorum (cupuassu) is an important fruit tree native to the Brazilian Amazon. Establishing the genetic diversity and structure of populations is critical to define long-term strategies for cupuassu conservation presently threatened by rapid deforestation. Three natural populations collected at the putative center of diversity, three groups of accessions established at a germplasm collection, and one derived from commercial plantings were analyzed. The genetic diversity was assessed using 21 polymorphic microsatellite loci originally developed for Theobroma cacao, disclosing a total of 113 alleles. The estimated genetic diversity parameters averaged over cupuassu populations (A?=?3.53 alleles per locus; H e?=?0.426; H o?=?0.346) were lower than the values reported for other Neotropical tree species. The three natural populations presented a positive and significant fixation index (f), ranging from 0.133 to 0.234. Cupuassu apparently adhered to a general pattern of genetic diversity structure of some Neotropical tree species occurring at low densities, with a low intrapopulation genetic diversity and important levels of endogamy, possibly due to biparental inbreeding derived from the presence of spatial genetic structure in the populations. A high level of genetic divergence was detected among the natural populations (? p?=?0.301), a strong differentiation caused by limited gene flow, and suggesting that human interference in spreading and/or stimulating plantin... Mostrar Tudo |
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Palavras-Chave: |
Cupuassu. |
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Thesagro: |
Cupuaçu; Genética; Theobroma Grandiflorum. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02337naa a2200217 a 4500
001 1409422
005 2022-11-23
008 2007 bl uuuu u00u1 u #d
100 1 $aALVES, R. M.
245 $aHigh levels of genetic divergence and inbreeding in populations of cupuassu (Theobroma grandiflorum).$h[electronic resource]
260 $c2007
520 $aTheobroma grandiflorum (cupuassu) is an important fruit tree native to the Brazilian Amazon. Establishing the genetic diversity and structure of populations is critical to define long-term strategies for cupuassu conservation presently threatened by rapid deforestation. Three natural populations collected at the putative center of diversity, three groups of accessions established at a germplasm collection, and one derived from commercial plantings were analyzed. The genetic diversity was assessed using 21 polymorphic microsatellite loci originally developed for Theobroma cacao, disclosing a total of 113 alleles. The estimated genetic diversity parameters averaged over cupuassu populations (A?=?3.53 alleles per locus; H e?=?0.426; H o?=?0.346) were lower than the values reported for other Neotropical tree species. The three natural populations presented a positive and significant fixation index (f), ranging from 0.133 to 0.234. Cupuassu apparently adhered to a general pattern of genetic diversity structure of some Neotropical tree species occurring at low densities, with a low intrapopulation genetic diversity and important levels of endogamy, possibly due to biparental inbreeding derived from the presence of spatial genetic structure in the populations. A high level of genetic divergence was detected among the natural populations (? p?=?0.301), a strong differentiation caused by limited gene flow, and suggesting that human interference in spreading and/or stimulating plantings might have had a smaller effect than expected. The approximate location of the T. grandiflorum center of diversity could not be confirmed by analyzing natural populations from the putative region.
650 $aCupuaçu
650 $aGenética
650 $aTheobroma Grandiflorum
653 $aCupuassu
700 1 $aSEBBENN, A. M.
700 1 $aARTERO, A. S.
700 1 $aCLEMENT, C.
700 1 $aFIGUEIRA, A.
773 $tTree Genetics & Genomes$gv. 3, n. 4, p. 289-298, out. 2007.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
12/04/2024 |
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Data da última atualização: |
12/04/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CRANCIANINOV, W. S.; MANDARINO, J. M. G.; CARRÃO-PANIZZI, M. C.; IDA, E. I. |
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Afiliação: |
WLADIMIR SANT'ANA CRANCIANINOV, UNIVERSIDADE ESTADUAL DE LONDRINA; JOSE MARCOS GONTIJO MANDARINO, CNPSO; MERCEDES CONCORDIA CARRAO PANIZZI, CNPSO; ELZA IOKO IDA, UNIVERSIDADE ESTADUAL DE LONDRINA. |
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Título: |
Determinação do teor de ácido fítico de diferentes cultivares de soja e eficiencia da sua extração e quantificação. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE CIÊNCIA E TECNOLOGIA DE ALIMENTOS, 20., 2006, Curitiba. Alimentos e agroindústrias brasileiras no contexto internacional: resumos. Curitiba: Sociedade Brasileira de Ciência e Tecnologia de Alimentos, 2006. 1 CD-ROM. |
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Idioma: |
Português |
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Thesagro: |
Ácido; Soja. |
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Thesaurus NAL: |
Phytic acid; Soybeans. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 00789nam a2200181 a 4500
001 2163550
005 2024-04-12
008 2006 bl uuuu u00u1 u #d
100 1 $aCRANCIANINOV, W. S.
245 $aDeterminação do teor de ácido fítico de diferentes cultivares de soja e eficiencia da sua extração e quantificação.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE CIÊNCIA E TECNOLOGIA DE ALIMENTOS, 20., 2006, Curitiba. Alimentos e agroindústrias brasileiras no contexto internacional: resumos. Curitiba: Sociedade Brasileira de Ciência e Tecnologia de Alimentos, 2006. 1 CD-ROM.$c2006
650 $aPhytic acid
650 $aSoybeans
650 $aÁcido
650 $aSoja
700 1 $aMANDARINO, J. M. G.
700 1 $aCARRÃO-PANIZZI, M. C.
700 1 $aIDA, E. I.
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Embrapa Soja (CNPSO) |
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