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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: |
null
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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| 1. |  | OCAMPOS, F. M. M.; BORIM, A. J.; VENDRAMINI, T. H. A.; SALDANHA, L. L.; BRUNETTO, M. A.; COLNAGO, L. A. Untargeted NMR based metabolomics in agriculture. In: NMR USERS MEETING, 17, 2019, Búzios, Rio de Janeiro, 2019. Abstracts Book ... Rio de Janeiro: Associação de Usuários de Ressonância Magnética Nuclear, 2019. 26| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 2. | | HALFEN, D. P.; OBA, P. M.; DUARTE, C. N.; SANTOS, J. P. F.; VENDRAMINI, T. H. A.; SUCUPIRA, M. C. A.; CARCIOFI, A. C.; BRUNETTO, M. Tutores de cães consideram a dieta caseira como adequada, mas alteram as fórmulas prescritas. Pesquisa Veterinária Brasileira, Brasília, DF, v. 37, n. 12, p. 1453-1459, dezembro. 2017. Título em inglês: Dog owners consider homemade diet as adequate, but change the prescribed formulas.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 4. | | VENDRAMINI, T. H. A.; MACEDO, H. T.; ZAFALON, R. V. A.; MACEGOZA, M. V.; PEDRINELLI, V.; RISOLIA, L. W.; OCAMPOS, F. M. M.; JEREMIAS, J. T.; PONTIERI, C. F. F.; FERRIOLLI, E.; COLNAGO, L. A.; BRUNETTO, M. A. Serum metabolomics analysis reveals that weight loss in obese dogs results in a similar metabolic profle to dogs in ideal body condition. Metabolomics, v. 22, n. 4, 2021. 1171-1188| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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| 5. | | PEDRINELLI, V.; VENDRAMINI, T. H. A.; MACEDO, H. T.; ZAFALON, R. V. A.; MACEGOZA, M. V.; RISOLIA, L. W.; OCAMPOS, F. M. M.; JEREMIAS, J. T.; PONTIERI, C. F. F.; COLNAGO, L. A.; BRUNETTO, M. A. Serum metabolomics in obese dogs before and after weight loss. In: ANNUAL AAVN CLINICAL NUTRITION & RESEARCH SYMPOSIUM, 20, Virtual, 2020. Research Abstract Symposium Proceedings 2020. 16| Tipo: Resumo em Anais de Congresso |
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| 6. | | BRUNETTO, M. A.; RUBERTI, B.; HALFEN, D. P.; CARAGELASCO, D. S.; VENDRAMINI, T. H. A.; PEDRINELLI, V.; MACEDO, H. T.; JEREMIAS, J. T.; PONTIERI, C. F. F.; OCAMPOS, F. M. M.; COLNAGO, L. A.; KOGIKA, M. M. Healthy and Chronic Kidney Disease (CKD) dogs have differences in serum metabolomics and renal diet may have slowed disease progression. Metabolites, v. 11, n. 782, p. 1-13, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
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| Registros recuperados : 6 | |
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