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Registro Completo |
Biblioteca(s): |
Embrapa Acre. |
Data corrente: |
16/03/2020 |
Data da última atualização: |
02/07/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
OLIVEIRA, S. S. de; CAMPOS, T. de; SEBBENN, A. M.; OLIVEIRA, M. V. N. d'. |
Afiliação: |
Sabrina Silva de Oliveira, Universidade Federal do Acre (Ufac); TATIANA DE CAMPOS, CPAF-AC; Alexandre Magno Sebbenn, Instituto Florestal de São Paulo; MARCUS VINICIO NEVES D OLIVEIRA, CPAF-AC. |
Título: |
Using spatial genetic structure of a population of Swietenia macrophylla King to integrate genetic diversity into management strategies in Southwestern Amazon. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Forest Ecology and Management, v. 464, n. 15, 118040, May 2020. |
ISSN: |
0378-1127 |
DOI: |
10.1016/j.foreco.2020.118040 |
Idioma: |
Inglês |
Conteúdo: |
The aims of this study were to investigate the intrapopulation spatial genetic structure (SGS) of a preserved Swietenia macrophylla population in a managed forest in Southwestern Amazon, in Acre state, Brazil, and assess the genetic parameters that underlie the conceptual framework that guides conservation and management strategies. The study was conducted in Annual Production Unit (APU) 3, where 83 adult trees (DBH?40 cm) were mapped (1650 ha). The diameter at breast height (DBH) was measured and the vascular exchange was sampled. Leaf tissues were collected from 187 juvenile individuals within a radius of 20m of adults. The population presented high heterozygosity (Ho) for adult (0.767) and juvenile (0.763) individuals, but significantly high allelic richness (R) and significantly lower fixation index (F) in adults (R =10.3, F =0.048) than juveniles (R =9.3, F= 0.119). The F value significantly higher for juveniles, suggesting selection against inbred individuals between juvenile and adult life stages. SGS was detected for adults up to 300 m. Mating was mainly through outcrossing (0.97-1.0), but some crossing occurred among related trees (0.02-0.16) and were correlated (rpm =0.06-0.22), indicating a mean effective number of pollen donors ranging from 4.5 to 18.2. Pollen dispersal distances reached 3905m (mean of 1472 m), and mean effective pollination neighbor area of 792 ha. The effective population size (Ne) within family (2.73) was lower than expected for random mating populations. The number of trees (m) required for seed collection was estimated at 55 non-inbreed and not related trees to each other. The core collection consisted of 42 (50.6%) adults across the area. These individuals should be included in seed collection as they represent 100% of the total detected genetic diversity. The inclusion of S. macrophylla on the list of species available for exploitation is not indicated, because the species requires cross breeding for its maintenance and logging reduce the Ne and may negatively impact the pattern of genetic diversity. These will significantly increase the risk of genetic erosion and population extinction due to a lack of adaptive ability. Adults serve as pollen donors that ecologically and genetically contribute to the maintenance of gene flow and Ne. Because it is recognized as a threatened species worldwide, and due to the fact that in areas of natural occurrence the species presents low-density and shows difficulty establishing natural regeneration, we recommend that S. macrophylla be protected from selective logging. MenosThe aims of this study were to investigate the intrapopulation spatial genetic structure (SGS) of a preserved Swietenia macrophylla population in a managed forest in Southwestern Amazon, in Acre state, Brazil, and assess the genetic parameters that underlie the conceptual framework that guides conservation and management strategies. The study was conducted in Annual Production Unit (APU) 3, where 83 adult trees (DBH?40 cm) were mapped (1650 ha). The diameter at breast height (DBH) was measured and the vascular exchange was sampled. Leaf tissues were collected from 187 juvenile individuals within a radius of 20m of adults. The population presented high heterozygosity (Ho) for adult (0.767) and juvenile (0.763) individuals, but significantly high allelic richness (R) and significantly lower fixation index (F) in adults (R =10.3, F =0.048) than juveniles (R =9.3, F= 0.119). The F value significantly higher for juveniles, suggesting selection against inbred individuals between juvenile and adult life stages. SGS was detected for adults up to 300 m. Mating was mainly through outcrossing (0.97-1.0), but some crossing occurred among related trees (0.02-0.16) and were correlated (rpm =0.06-0.22), indicating a mean effective number of pollen donors ranging from 4.5 to 18.2. Pollen dispersal distances reached 3905m (mean of 1472 m), and mean effective pollination neighbor area of 792 ha. The effective population size (Ne) within family (2.73) was lower than expected for random mating ... Mostrar Tudo |
Palavras-Chave: |
Acre; Bujari (AC); Estructura poblacional; Estrutura genética espacial; Floresta Estadual do Antimary (AC); Mahogany; Repeticiones de microsatélite; Sena Madureira (AC); Southwestern Amazon; Sudoeste da Amazônia. |
Thesagro: |
Características Agronômicas; Conservação; Genética Vegetal; Marcador Genético; Mogno; Parâmetro Genético; População de Planta; Swietenia Macrophylla. |
Thesaurus Nal: |
Agronomic traits; Genetic markers; Loci; Microsatellite repeats; Population structure. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/211864/1/26982.pdf
|
Marc: |
LEADER 04041naa a2200457 a 4500 001 2121251 005 2021-07-02 008 2020 bl uuuu u00u1 u #d 022 $a0378-1127 024 7 $a10.1016/j.foreco.2020.118040$2DOI 100 1 $aOLIVEIRA, S. S. de 245 $aUsing spatial genetic structure of a population of Swietenia macrophylla King to integrate genetic diversity into management strategies in Southwestern Amazon.$h[electronic resource] 260 $c2020 520 $aThe aims of this study were to investigate the intrapopulation spatial genetic structure (SGS) of a preserved Swietenia macrophylla population in a managed forest in Southwestern Amazon, in Acre state, Brazil, and assess the genetic parameters that underlie the conceptual framework that guides conservation and management strategies. The study was conducted in Annual Production Unit (APU) 3, where 83 adult trees (DBH?40 cm) were mapped (1650 ha). The diameter at breast height (DBH) was measured and the vascular exchange was sampled. Leaf tissues were collected from 187 juvenile individuals within a radius of 20m of adults. The population presented high heterozygosity (Ho) for adult (0.767) and juvenile (0.763) individuals, but significantly high allelic richness (R) and significantly lower fixation index (F) in adults (R =10.3, F =0.048) than juveniles (R =9.3, F= 0.119). The F value significantly higher for juveniles, suggesting selection against inbred individuals between juvenile and adult life stages. SGS was detected for adults up to 300 m. Mating was mainly through outcrossing (0.97-1.0), but some crossing occurred among related trees (0.02-0.16) and were correlated (rpm =0.06-0.22), indicating a mean effective number of pollen donors ranging from 4.5 to 18.2. Pollen dispersal distances reached 3905m (mean of 1472 m), and mean effective pollination neighbor area of 792 ha. The effective population size (Ne) within family (2.73) was lower than expected for random mating populations. The number of trees (m) required for seed collection was estimated at 55 non-inbreed and not related trees to each other. The core collection consisted of 42 (50.6%) adults across the area. These individuals should be included in seed collection as they represent 100% of the total detected genetic diversity. The inclusion of S. macrophylla on the list of species available for exploitation is not indicated, because the species requires cross breeding for its maintenance and logging reduce the Ne and may negatively impact the pattern of genetic diversity. These will significantly increase the risk of genetic erosion and population extinction due to a lack of adaptive ability. Adults serve as pollen donors that ecologically and genetically contribute to the maintenance of gene flow and Ne. Because it is recognized as a threatened species worldwide, and due to the fact that in areas of natural occurrence the species presents low-density and shows difficulty establishing natural regeneration, we recommend that S. macrophylla be protected from selective logging. 650 $aAgronomic traits 650 $aGenetic markers 650 $aLoci 650 $aMicrosatellite repeats 650 $aPopulation structure 650 $aCaracterísticas Agronômicas 650 $aConservação 650 $aGenética Vegetal 650 $aMarcador Genético 650 $aMogno 650 $aParâmetro Genético 650 $aPopulação de Planta 650 $aSwietenia Macrophylla 653 $aAcre 653 $aBujari (AC) 653 $aEstructura poblacional 653 $aEstrutura genética espacial 653 $aFloresta Estadual do Antimary (AC) 653 $aMahogany 653 $aRepeticiones de microsatélite 653 $aSena Madureira (AC) 653 $aSouthwestern Amazon 653 $aSudoeste da Amazônia 700 1 $aCAMPOS, T. de 700 1 $aSEBBENN, A. M. 700 1 $aOLIVEIRA, M. V. N. d' 773 $tForest Ecology and Management$gv. 464, n. 15, 118040, May 2020.
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Embrapa Acre (CPAF-AC) |
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Registros recuperados : 119 | |
5. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | ASSIS, G. M. L. de; CAMPOS, T. de; BIANCHINI, P. C.; MATOS, L. R. A. de. Banco de germoplasma de amendoim forrageiro: conservação e utilização. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2012. 4 p. 1 CD-ROM.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Acre. |
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8. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | FERREIRA, J. A.; CUNHA, M. O. da; ASSIS, G. M. L. de; CAMPOS, T. de. Certificação molecular de hibridação intraespecífica em amendoim forrageiro por meio de marcadores SSRS. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2012. 4 p. 1 CD-ROM.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Acre. |
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9. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | FERREIRA, J. A.; SILVA, H. F.; ASSIS, G. M. L. de; CAMPOS, T. de. Caracterização da diversidade genética de genitores de amendoim forrageiro por meio de marcadores microssatélites. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2012. 4 p. 1 CD-ROM.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Acre. |
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10. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | SIVIERO, A.; BERGO, C. L.; SILVA, L. M. da; KLEIN, M. A.; CAMPOS, T. de. Caracterização de etnovariedades de mandioca utilizadas na produção de farinha de Cruzeiro do Sul. In: CONGRESSO BRASILEIRO DE MANDIOCA, 17.; CONGRESSO LATINO-AMERICANO E CARIBENHO DE MANDIOCA, 2., 2018, Belém, PA. Anais... Belém, PA: SBM, 2018. p. 197-200.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Acre. |
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11. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | LIMA, R. O. de; SILVA, L. M. da; SILVA, A. L. D. da; CAMPOS, T. de. Identificação genética de híbridos interespecíficos de Arachis. In: SEMINÁRIO DA EMBRAPA ACRE DE INICIAÇÃO CIENTÍFICA E PÓS-GRADUAÇÃO, 3., 2020, Rio Branco, AC. Ciência e tecnologia na sociedade digital (edição on-line): anais. Rio Branco, AC: Embrapa Acre, 2021. p. 59-64. Apresentação oral. (Embrapa Acre. Eventos técnicos & científicos, 3). Editores: Virgínia de Souza Álvares, Fabiano Marçal Estanislau.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Acre. |
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12. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | SILVA, A. L. D. da; OLIVEIRA, J. C. de; CAMPOS, T. de. Identificação molecular de clones de seringueira com marcadores microssatélites. In: SEMINÁRIO DA EMBRAPA ACRE DE INICIAÇÃO CIENTÍFICA E PÓS-GRADUAÇÃO, 2., 2019, Rio Branco, AC. A Contribuição da ciência para a agropecuária no Acre: anais. Rio Branco, AC: Embrapa Acre, 2020. p. 111-116. Banner. (Embrapa Acre. Eventos técnicos & científicos, 2). Editores técnicos: Virgínia de Souza Álvares; Fabiano Marçal Estanislau.Tipo: Artigo em Anais de Congresso |
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13. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | CAMPOS, T. de; AZÊVEDO, H. S. da S.; SILVA, L. M. da. A importância da diversidade genética em plantas. Jornal Dia de Campo, Brasília, DF, Artigos Especiais, 04 abr. 2016. Artigo eletrônico. Publicado também no formato impresso em: O Rio Branco, Rio Branco, Opinião, 13 fev. 2016.Tipo: Artigo de Divulgação na Mídia |
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18. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | SILVA, V. S.; MARTINS, K.; CAMPOS, T. de; WADT, L. H. de O. Diversidade genética de populações naturais de castanheira (Bertholletia excelsa) com marcadores ISSR. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2012. 4 p. 1 CD-ROM.Tipo: Artigo em Anais de Congresso |
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Registros recuperados : 119 | |
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