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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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Biblioteca |
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Classificação |
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Registro |
Volume |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Cocais. |
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Data corrente: |
05/04/2016 |
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Data da última atualização: |
27/02/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
SILVA, E. F. da; SOUSA, S. B. de; SILVA, G. F. da; SOUSA, N. R.; NASCIMENTO FILHO, F. J. do; HANADA, R. E. |
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Afiliação: |
Elizangela Farias da Silva; Sandra Barbosa de Sousa; GILVAN FERREIRA DA SILVA, CPAA; NELCIMAR REIS SOUSA, CPACP; FIRMINO JOSE DO NASCIMENTO FILHO, CPAA; Rogério Eiji Hanada, INPA. |
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Título: |
TRAP and SRAP markers to find genetic variability in complex polyploid Paullinia cupana var. sorbilis. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Plant Gene, v. 6, p. 43-47, 2016. |
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DOI: |
doi:10.1016/j.plgene.2016.03.005 |
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Idioma: |
Inglês |
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Conteúdo: |
The guarana plant (Paullinia cupana var. sorbilis) is a polyploid rich in natural caffeine, used as a source for producing industrial soft drinks. Embrapa Western Amazon maintains an Active Germplasm Bank (BGA) with 270 clones, which represents the genetic basis of the species conservation and breeding programs. The BGA evaluations conducted using phenotypic traits and Random Amplified Polymorphic DNA (RAPD) markers indicated low genetic variability. Therefore, the objective of this study was to analyze the genetic diversity of the clonal germplasm of the guarana plant using Target Region Amplification Polymorphism (TRAP) and Sequence-Related Amplification Polymorphism (SRAP) markers. |
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Palavras-Chave: |
Amazon germplasm; Clonal Cultivar; Guarana plant; Molecular marker. |
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Thesagro: |
Germoplasma; Guaraná; Marcador Molecular; Paullinia Cupana; Variedade. |
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Thesaurus NAL: |
germplasm. |
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Categoria do assunto: |
--
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/142194/1/1-s2.0-S2352407316000135-main.pdf
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Marc: |
LEADER 01598naa a2200313 a 4500
001 2042648
005 2018-02-27
008 2016 bl uuuu u00u1 u #d
024 7 $adoi:10.1016/j.plgene.2016.03.005$2DOI
100 1 $aSILVA, E. F. da
245 $aTRAP and SRAP markers to find genetic variability in complex polyploid Paullinia cupana var. sorbilis.$h[electronic resource]
260 $c2016
520 $aThe guarana plant (Paullinia cupana var. sorbilis) is a polyploid rich in natural caffeine, used as a source for producing industrial soft drinks. Embrapa Western Amazon maintains an Active Germplasm Bank (BGA) with 270 clones, which represents the genetic basis of the species conservation and breeding programs. The BGA evaluations conducted using phenotypic traits and Random Amplified Polymorphic DNA (RAPD) markers indicated low genetic variability. Therefore, the objective of this study was to analyze the genetic diversity of the clonal germplasm of the guarana plant using Target Region Amplification Polymorphism (TRAP) and Sequence-Related Amplification Polymorphism (SRAP) markers.
650 $agermplasm
650 $aGermoplasma
650 $aGuaraná
650 $aMarcador Molecular
650 $aPaullinia Cupana
650 $aVariedade
653 $aAmazon germplasm
653 $aClonal Cultivar
653 $aGuarana plant
653 $aMolecular marker
700 1 $aSOUSA, S. B. de
700 1 $aSILVA, G. F. da
700 1 $aSOUSA, N. R.
700 1 $aNASCIMENTO FILHO, F. J. do
700 1 $aHANADA, R. E.
773 $tPlant Gene$gv. 6, p. 43-47, 2016.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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