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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
24/08/2018 |
Data da última atualização: |
20/11/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SOUZA, L. M. de; SANTOS, L. H. B. dos; ROSA, J. R. B. F.; SILVA, C. C. da; MANTELLO, C. C.; CONSON, A. R. O.; SCALOPPI JUNIOR, E. J.; FIALHO, J. de F.; MORAES, M. L. T. de; GONÇALVES, P. de S.; MARGARIDO, G. R. A.; GARCIA, A. A. F.; LE GUEN, V.; SOUZA, A. P. de. |
Afiliação: |
LIVIA M. DE SOUZA, UNICAMP; LUCIANO H. B. DOS SANTOS, UNICAMP; JOÃO R. B. F. ROSA, USP/ESALQ; CARLA C. DA SILVA, UNICAMP; CAMILA C. MANTELLO, UNICAMP; ANDRE R. O. CONSON, UNICAMP; ERIVALDO J. SCALOPPI JUNIOR, IAC; JOSEFINO DE FREITAS FIALHO, CPAC; MARIO LUIZ T. DE MORAES, UNESP; PAULO DE S. GONÇALVES, IAC; GABRIEL R. A. MARGARIDO, USP/ESALQ; ANTONIO A. F. GARCIA, USP/ESALQ; VINCENT LE GUEN, CIRAD; ANETE P. DE SOUZA, UNICAMP. |
Título: |
Linkage disequilibrium and population structure in wild and cultivated populations of rubber tree (Hevea brasiliensis). |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Frontiers in Plant Science, v. 9, article 815, 03 July 2018. |
DOI: |
https://doi.org/10.3389/fpls.2018.00815 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Among rubber tree species, which belong to the Hevea genus of the Euphorbiaceae family, Hevea brasiliensis (Willd. ex Adr.de Juss.) Muell. Arg. is the main commercial source of natural rubber production worldwide. Knowledge of the population structure and linkage disequilibrium (LD) of this species is essential for the efficient organization and exploitation of genetic resources. Here, we obtained single-nucleotide polymorphisms (SNPs) using a genotyping-by-sequencing (GBS) approach and then employed the SNPs for the following objectives: (i) to identify the positions of SNPs on a genetic map of a segregating mapping population, (ii) to evaluate the population structure of a germplasm collection, and (iii) to detect patterns of LD decay among chromosomes for future genetic association studies in rubber tree. A total of 626 genotypes, including both germplasm accessions (368) and individuals from a genetic mapping population (254), were genotyped. A total of 77,660 and 21,283 SNPs were detected by GBS in the germplasm and mapping populations, respectively. The mapping population, which was previously mapped, was constructed with 1,062 markers, among which only 576 SNPs came from GBS, reducing the average interval between two adjacent markers to 4.4 cM. SNPs from GBS genotyping were used for the analysis of genetic structure and LD estimation in the germplasm accessions. Two groups, which largely corresponded to the cultivated and wild populations, were detected using STRUCTURE and via principal coordinate analysis. LD analysis, also using the mapped SNPs, revealed that non-random associations varied along chromosomes, with regions of high LD interspersed with regions of low LD. Considering the length of the genetic map (4,693 cM) and the mean LD (0.49 for cultivated and 0.02 for wild populations), a large number of evenly spaced SNPs would be needed to perform genome-wide association studies in rubber tree, and the wilder the genotypes used, the more difficult the mapping saturation. MenosAbstract: Among rubber tree species, which belong to the Hevea genus of the Euphorbiaceae family, Hevea brasiliensis (Willd. ex Adr.de Juss.) Muell. Arg. is the main commercial source of natural rubber production worldwide. Knowledge of the population structure and linkage disequilibrium (LD) of this species is essential for the efficient organization and exploitation of genetic resources. Here, we obtained single-nucleotide polymorphisms (SNPs) using a genotyping-by-sequencing (GBS) approach and then employed the SNPs for the following objectives: (i) to identify the positions of SNPs on a genetic map of a segregating mapping population, (ii) to evaluate the population structure of a germplasm collection, and (iii) to detect patterns of LD decay among chromosomes for future genetic association studies in rubber tree. A total of 626 genotypes, including both germplasm accessions (368) and individuals from a genetic mapping population (254), were genotyped. A total of 77,660 and 21,283 SNPs were detected by GBS in the germplasm and mapping populations, respectively. The mapping population, which was previously mapped, was constructed with 1,062 markers, among which only 576 SNPs came from GBS, reducing the average interval between two adjacent markers to 4.4 cM. SNPs from GBS genotyping were used for the analysis of genetic structure and LD estimation in the germplasm accessions. Two groups, which largely corresponded to the cultivated and wild populations, were detected usin... Mostrar Tudo |
Thesagro: |
Comportamento de Variedade; Hevea Brasiliensis; População de Planta; Seringueira; Variação Genética. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/181926/1/DL-Hevea-brasiliensis-Livia-public-Frontiers-3.07.2018apagar.pdf
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Marc: |
LEADER 03139naa a2200349 a 4500 001 2094508 005 2018-11-20 008 2018 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.3389/fpls.2018.00815$2DOI 100 1 $aSOUZA, L. M. de 245 $aLinkage disequilibrium and population structure in wild and cultivated populations of rubber tree (Hevea brasiliensis).$h[electronic resource] 260 $c2018 520 $aAbstract: Among rubber tree species, which belong to the Hevea genus of the Euphorbiaceae family, Hevea brasiliensis (Willd. ex Adr.de Juss.) Muell. Arg. is the main commercial source of natural rubber production worldwide. Knowledge of the population structure and linkage disequilibrium (LD) of this species is essential for the efficient organization and exploitation of genetic resources. Here, we obtained single-nucleotide polymorphisms (SNPs) using a genotyping-by-sequencing (GBS) approach and then employed the SNPs for the following objectives: (i) to identify the positions of SNPs on a genetic map of a segregating mapping population, (ii) to evaluate the population structure of a germplasm collection, and (iii) to detect patterns of LD decay among chromosomes for future genetic association studies in rubber tree. A total of 626 genotypes, including both germplasm accessions (368) and individuals from a genetic mapping population (254), were genotyped. A total of 77,660 and 21,283 SNPs were detected by GBS in the germplasm and mapping populations, respectively. The mapping population, which was previously mapped, was constructed with 1,062 markers, among which only 576 SNPs came from GBS, reducing the average interval between two adjacent markers to 4.4 cM. SNPs from GBS genotyping were used for the analysis of genetic structure and LD estimation in the germplasm accessions. Two groups, which largely corresponded to the cultivated and wild populations, were detected using STRUCTURE and via principal coordinate analysis. LD analysis, also using the mapped SNPs, revealed that non-random associations varied along chromosomes, with regions of high LD interspersed with regions of low LD. Considering the length of the genetic map (4,693 cM) and the mean LD (0.49 for cultivated and 0.02 for wild populations), a large number of evenly spaced SNPs would be needed to perform genome-wide association studies in rubber tree, and the wilder the genotypes used, the more difficult the mapping saturation. 650 $aComportamento de Variedade 650 $aHevea Brasiliensis 650 $aPopulação de Planta 650 $aSeringueira 650 $aVariação Genética 700 1 $aSANTOS, L. H. B. dos 700 1 $aROSA, J. R. B. F. 700 1 $aSILVA, C. C. da 700 1 $aMANTELLO, C. C. 700 1 $aCONSON, A. R. O. 700 1 $aSCALOPPI JUNIOR, E. J. 700 1 $aFIALHO, J. de F. 700 1 $aMORAES, M. L. T. de 700 1 $aGONÇALVES, P. de S. 700 1 $aMARGARIDO, G. R. A. 700 1 $aGARCIA, A. A. F. 700 1 $aLE GUEN, V. 700 1 $aSOUZA, A. P. de 773 $tFrontiers in Plant Science$gv. 9, article 815, 03 July 2018.
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Embrapa Cerrados (CPAC) |
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Biblioteca(s): |
Embrapa Uva e Vinho. |
Data corrente: |
12/11/2012 |
Data da última atualização: |
16/08/2019 |
Tipo da produção científica: |
Artigo de Divulgação na Mídia |
Autoria: |
SILVEIRA, S. V. da. |
Afiliação: |
SAMAR VELHO DA SILVEIRA, CNPUV. |
Título: |
Vantagens da inoculação de mudas frutíferas com fungos micorrízicos. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Jornal da Fruta, Lages, v. 20, n. 259, p. 22, set. 2012. |
Idioma: |
Português |
Conteúdo: |
Estima-se, pelo estudo de fósseis, que o surgimento das plantas na superfície terrestre tenha ocorrido há aproximadamente 460 milhões de anos, enquanto que os fungos micorrízicos já estavam aqui há 600 milhões de anos. Além disso, a associação destes fungos com as plantas já foi perfeitamente registrada em fósseis do período Ordoviciano, há 450 milhões de anos. |
Thesagro: |
Árvore frutífera; Fungo; Micorriza; Muda; Nutrição vegetal; Planta. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/200914/1/14185-2012-p.22.pdf
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Marc: |
LEADER 00906nam a2200181 a 4500 001 1939505 005 2019-08-16 008 2012 bl uuuu u00u1 u #d 100 1 $aSILVEIRA, S. V. da 245 $aVantagens da inoculação de mudas frutíferas com fungos micorrízicos.$h[electronic resource] 260 $aJornal da Fruta, Lages, v. 20, n. 259, p. 22, set. 2012.$c2012 520 $aEstima-se, pelo estudo de fósseis, que o surgimento das plantas na superfície terrestre tenha ocorrido há aproximadamente 460 milhões de anos, enquanto que os fungos micorrízicos já estavam aqui há 600 milhões de anos. Além disso, a associação destes fungos com as plantas já foi perfeitamente registrada em fósseis do período Ordoviciano, há 450 milhões de anos. 650 $aÁrvore frutífera 650 $aFungo 650 $aMicorriza 650 $aMuda 650 $aNutrição vegetal 650 $aPlanta
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