|
|
Registros recuperados : 5 | |
3. | | DOWSLEY, J. D.; MESQUITA, F. A. S. de; CAMARGO, R. C. R. de; SALEH, E. O. L. Caracterização palinológica da flora melitófila da reserva extrativista do Delta do Parnaíba. In: SIMPÓSIO DE PRODUÇÃO CIENTÍFICA, 6.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA, 4.; SEMINÁRIO DE PÓS-GRADUAÇÃO, 3., 2005, Teresina, PI. Resumos... Teresina: UESPI, 2005. p. 190. Biblioteca(s): Embrapa Meio-Norte. |
| |
4. | | MESQUITA, F. A. S. de; DOWSLEY, J. D.; CAMARGO, R. C. R. de; SALEH, E. O. L. Chave de identificação palinológica para as espécies melitófilas da reserva extrativista do Delta do Parnaíba. In: SIMPÓSIO DE PRODUÇÃO CIENTÍFICA, 6.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA, 4.; SEMINÁRIO DE PÓS-GRADUAÇÃO, 3., 2005, Teresina, PI. Resumos... Teresina: UESPI, 2005. p. 183. Biblioteca(s): Embrapa Meio-Norte. |
| |
5. | | PEREIRA, L. A.; MESQUITA, F. A. S. de; BRASIL, K. V.; MELO, A. F. de; SALEH, E. O. L.; SANTOS FILHO, F. S.; CAMARGO, R. C. R. de. Levantamento catalografico da flora da reserva extrativista marinha do Delta do Parnaíba, PI/Brasil. In: ENCONTRO NORDESTINO DE BIOLOGOS, 4.; ENCONTRO DE COORDENADORES DE CURSOS DE CIÊNCIAS BIOLÓGICAS DO NORDESTE, 3., 2007. Teresina. O biólogo e a qualidade de vida: anais. Teresina: CRBio 5, 2007. p. 60 Biblioteca(s): Embrapa Meio-Norte. |
| |
Registros recuperados : 5 | |
|
|
Registro Completo
Biblioteca(s): |
Embrapa Café. |
Data corrente: |
18/10/2011 |
Data da última atualização: |
18/10/2011 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
MISSIO, R. F.; CAIXETA, E. T.; ZAMBOLIM, E. M.; PENA, G. F.; ZAMBOLIM, L.; DIAS, L. A. S.; SAKIYAMA, N. S. |
Afiliação: |
Universidade Federal do Paraná; EVELINE TEIXEIRA CAIXETA, SAPC; BioCafé; BioCafé; BioCafé; UFV; BioCafé/UFV. |
Título: |
Genetic characterization of an elite coffee germplasm assessed by gSSR and EST-SSR markers. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Genetics and Molecular Research, v. 10, n. 4, p 2366-2381, 2011. |
Idioma: |
Inglês |
Conteúdo: |
Coffee is one of the main agrifood commodities traded worldwide. In 2009, coffee accounted for 6.1% of the value of Brazilian agricultural production, generating a revenue of US$6 billion. Despite the importance of coffee production in Brazil, it is supported by a narrow genetic base, with few accessions. Molecular differentiation and diversity of a coffee breeding program were assessed with gSSR and EST-SSR markers. The study comprised 24 coffee accessions according to their genetic origin: arabica accessions (six traditional genotypes of C. arabica), resistant arabica (six leaf rust-resistant C. arabica genotypes with introgression of Híbrido de Timor), robusta (five C. canephora genotypes), Híbrido de Timor (three C. arabica x C. canephora), triploids (three C. arabica x C. racemosa), and racemosa (one C. racemosa). Allele and polymorphism analysis, AMOVA, the Student t-test, Jaccard?s dissimilarity coefficient, cluster analysis, correlation of genetic distances, and discriminant analysis, were performed. EST-SSR markers gave 25 exclusive alleles per genetic group, while gSSR showed 47, which will be useful for differentiating accessions and for fingerprinting varieties. The gSSR markers detected a higher percentage of polymorphism among (35% higher on average) and within (42.9% higher on average) the genetic groups, compared to EST-SSR markers. The highest percentage of polymorphism within the genetic groups was found with gSSR markers for robusta (89.2%) and for resistant arabica (39.5%). It was possible to differentiate all genotypes including the arabica-related accessions. Nevertheless, combined use of gSSR and EST-SSR markers is recommended for coffee molecular characterization, because EST-SSRs can provide complementary information. MenosCoffee is one of the main agrifood commodities traded worldwide. In 2009, coffee accounted for 6.1% of the value of Brazilian agricultural production, generating a revenue of US$6 billion. Despite the importance of coffee production in Brazil, it is supported by a narrow genetic base, with few accessions. Molecular differentiation and diversity of a coffee breeding program were assessed with gSSR and EST-SSR markers. The study comprised 24 coffee accessions according to their genetic origin: arabica accessions (six traditional genotypes of C. arabica), resistant arabica (six leaf rust-resistant C. arabica genotypes with introgression of Híbrido de Timor), robusta (five C. canephora genotypes), Híbrido de Timor (three C. arabica x C. canephora), triploids (three C. arabica x C. racemosa), and racemosa (one C. racemosa). Allele and polymorphism analysis, AMOVA, the Student t-test, Jaccard?s dissimilarity coefficient, cluster analysis, correlation of genetic distances, and discriminant analysis, were performed. EST-SSR markers gave 25 exclusive alleles per genetic group, while gSSR showed 47, which will be useful for differentiating accessions and for fingerprinting varieties. The gSSR markers detected a higher percentage of polymorphism among (35% higher on average) and within (42.9% higher on average) the genetic groups, compared to EST-SSR markers. The highest percentage of polymorphism within the genetic groups was found with gSSR markers for robusta (89.2%) and for resista... Mostrar Tudo |
Palavras-Chave: |
Genetic diversity; Microsatellite marker. |
Thesaurus NAL: |
Coffea; Discriminant analysis. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/43671/1/Genetic-characterization-of-an-elite-coffee.pdf
|
Marc: |
LEADER 02492naa a2200241 a 4500 001 1903366 005 2011-10-18 008 2011 bl uuuu u00u1 u #d 100 1 $aMISSIO, R. F. 245 $aGenetic characterization of an elite coffee germplasm assessed by gSSR and EST-SSR markers.$h[electronic resource] 260 $c2011 520 $aCoffee is one of the main agrifood commodities traded worldwide. In 2009, coffee accounted for 6.1% of the value of Brazilian agricultural production, generating a revenue of US$6 billion. Despite the importance of coffee production in Brazil, it is supported by a narrow genetic base, with few accessions. Molecular differentiation and diversity of a coffee breeding program were assessed with gSSR and EST-SSR markers. The study comprised 24 coffee accessions according to their genetic origin: arabica accessions (six traditional genotypes of C. arabica), resistant arabica (six leaf rust-resistant C. arabica genotypes with introgression of Híbrido de Timor), robusta (five C. canephora genotypes), Híbrido de Timor (three C. arabica x C. canephora), triploids (three C. arabica x C. racemosa), and racemosa (one C. racemosa). Allele and polymorphism analysis, AMOVA, the Student t-test, Jaccard?s dissimilarity coefficient, cluster analysis, correlation of genetic distances, and discriminant analysis, were performed. EST-SSR markers gave 25 exclusive alleles per genetic group, while gSSR showed 47, which will be useful for differentiating accessions and for fingerprinting varieties. The gSSR markers detected a higher percentage of polymorphism among (35% higher on average) and within (42.9% higher on average) the genetic groups, compared to EST-SSR markers. The highest percentage of polymorphism within the genetic groups was found with gSSR markers for robusta (89.2%) and for resistant arabica (39.5%). It was possible to differentiate all genotypes including the arabica-related accessions. Nevertheless, combined use of gSSR and EST-SSR markers is recommended for coffee molecular characterization, because EST-SSRs can provide complementary information. 650 $aCoffea 650 $aDiscriminant analysis 653 $aGenetic diversity 653 $aMicrosatellite marker 700 1 $aCAIXETA, E. T. 700 1 $aZAMBOLIM, E. M. 700 1 $aPENA, G. F. 700 1 $aZAMBOLIM, L. 700 1 $aDIAS, L. A. S. 700 1 $aSAKIYAMA, N. S. 773 $tGenetics and Molecular Research$gv. 10, n. 4, p 2366-2381, 2011.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Café (CNPCa) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|