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| Registros recuperados : 13 | |
| Registros recuperados : 13 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Hortaliças; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
18/07/2017 |
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Data da última atualização: |
16/11/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CARVALHO, S. I. C.; BIANCHETTI, L. B.; RAGASSI, C. F.; RIBEIRO, C. S. C.; REIFSCHNEIDER, F. J. B.; BUSO, G. S. C.; FALEIRO, F. G. |
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Afiliação: |
SABRINA ISABEL COSTA DE CARVALHO, CNPH; LUCIANO DE BEM BIANCHETTI, Cenargen; CARLOS FRANCISCO RAGASSI, CNPH; CLAUDIA SILVA DA COSTA RIBEIRO, CNPH; FRANCISCO JOSE BECKER REIFSCHNEIDER, SRI; GLAUCIA SALLES CORTOPASSI BUSO, Cenargen; FABIO GELAPE FALEIRO, CPAC. |
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Título: |
Genetic variability of a Brazilian Capsicum frutescens germplasm collection using morphological characteristics and SSR markers. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Genetics and Molecular Research, v. 16, n. 3, 2017. gmr16039689. |
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ISSN: |
1676-5680 |
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DOI: |
10.4238/gmr16039689 |
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Idioma: |
Inglês |
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Conteúdo: |
Characterization studies provide essential information for the conservation and use of germplasm in plant breeding programs. In this study, 103 Capsicum frutescens L. accessions from the Active Germplasm Bank of Embrapa Hortaliças, representative of all five Brazilian geographic regions, were characterized based on morphological characteristics and microsatellite (or simple sequence repeat - SSR) molecular markers. Morphological characterization was carried out using 57 descriptors, and molecular characterization was based on 239 alleles from 24 microsatellite loci. From the estimates of genetic distances among accessions, based on molecular characterization, a cluster analysis was carried out, and a dendrogram was established. Correlations between morphological and molecular variables were also estimated. Twelve morphological descriptors were monomorphic for the set of C. frutescens accessions, and those with the highest degree of polymorphism were stem length (14.0 to 62.0 cm), stem diameter (1.0 to 4.2 cm), days to flowering (90 to 129), days to fruiting (100 to 140), fruit weight (0.1 to 1.4 g), fruit length (0.6 to 4.6 cm), and fruit wall thickness (0.25 to 1.5 mm). The polymorphism information content for the SSR loci varied from 0.36 (EPMS 417) to 0.75 (CA49), with an overall mean of 0.57. The correlation value between morphological and molecular characterization data was 0.6604, which was statistically significant. Fourteen accessions were described as belonging to the morphological type tabasco, 85 were described as malagueta, and four were malaguetinha, a morphological type confirmed in this study. The typical morphological pattern of malagueta was described. Six similarity groups were established for C. frutescens based on the dendrogram and are discussed individually. The genetic variability analyzed in the study highlights the importance of characterizing genetic resources available for the development of new C. frutescens cultivars with the potential for various niche markets. MenosCharacterization studies provide essential information for the conservation and use of germplasm in plant breeding programs. In this study, 103 Capsicum frutescens L. accessions from the Active Germplasm Bank of Embrapa Hortaliças, representative of all five Brazilian geographic regions, were characterized based on morphological characteristics and microsatellite (or simple sequence repeat - SSR) molecular markers. Morphological characterization was carried out using 57 descriptors, and molecular characterization was based on 239 alleles from 24 microsatellite loci. From the estimates of genetic distances among accessions, based on molecular characterization, a cluster analysis was carried out, and a dendrogram was established. Correlations between morphological and molecular variables were also estimated. Twelve morphological descriptors were monomorphic for the set of C. frutescens accessions, and those with the highest degree of polymorphism were stem length (14.0 to 62.0 cm), stem diameter (1.0 to 4.2 cm), days to flowering (90 to 129), days to fruiting (100 to 140), fruit weight (0.1 to 1.4 g), fruit length (0.6 to 4.6 cm), and fruit wall thickness (0.25 to 1.5 mm). The polymorphism information content for the SSR loci varied from 0.36 (EPMS 417) to 0.75 (CA49), with an overall mean of 0.57. The correlation value between morphological and molecular characterization data was 0.6604, which was statistically significant. Fourteen accessions were described as belonging to t... Mostrar Tudo |
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Palavras-Chave: |
Descriptors; Germplasm bank; Microsatellites. |
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Thesagro: |
Marcador molecular; Pimenta. |
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Thesaurus NAL: |
Capsicum frutescens; Genetic markers; Multivariate analysis; Peppers; Polymorphism. |
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Categoria do assunto: |
--
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/166765/1/Genetics-and-Molecular-Research-v.-16-n.-3-2017.-CARVALHO-et-al....pdf
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Marc: |
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008 2017 bl uuuu u00u1 u #d
022 $a1676-5680
024 7 $a10.4238/gmr16039689$2DOI
100 1 $aCARVALHO, S. I. C.
245 $aGenetic variability of a Brazilian Capsicum frutescens germplasm collection using morphological characteristics and SSR markers.$h[electronic resource]
260 $c2017
520 $aCharacterization studies provide essential information for the conservation and use of germplasm in plant breeding programs. In this study, 103 Capsicum frutescens L. accessions from the Active Germplasm Bank of Embrapa Hortaliças, representative of all five Brazilian geographic regions, were characterized based on morphological characteristics and microsatellite (or simple sequence repeat - SSR) molecular markers. Morphological characterization was carried out using 57 descriptors, and molecular characterization was based on 239 alleles from 24 microsatellite loci. From the estimates of genetic distances among accessions, based on molecular characterization, a cluster analysis was carried out, and a dendrogram was established. Correlations between morphological and molecular variables were also estimated. Twelve morphological descriptors were monomorphic for the set of C. frutescens accessions, and those with the highest degree of polymorphism were stem length (14.0 to 62.0 cm), stem diameter (1.0 to 4.2 cm), days to flowering (90 to 129), days to fruiting (100 to 140), fruit weight (0.1 to 1.4 g), fruit length (0.6 to 4.6 cm), and fruit wall thickness (0.25 to 1.5 mm). The polymorphism information content for the SSR loci varied from 0.36 (EPMS 417) to 0.75 (CA49), with an overall mean of 0.57. The correlation value between morphological and molecular characterization data was 0.6604, which was statistically significant. Fourteen accessions were described as belonging to the morphological type tabasco, 85 were described as malagueta, and four were malaguetinha, a morphological type confirmed in this study. The typical morphological pattern of malagueta was described. Six similarity groups were established for C. frutescens based on the dendrogram and are discussed individually. The genetic variability analyzed in the study highlights the importance of characterizing genetic resources available for the development of new C. frutescens cultivars with the potential for various niche markets.
650 $aCapsicum frutescens
650 $aGenetic markers
650 $aMultivariate analysis
650 $aPeppers
650 $aPolymorphism
650 $aMarcador molecular
650 $aPimenta
653 $aDescriptors
653 $aGermplasm bank
653 $aMicrosatellites
700 1 $aBIANCHETTI, L. B.
700 1 $aRAGASSI, C. F.
700 1 $aRIBEIRO, C. S. C.
700 1 $aREIFSCHNEIDER, F. J. B.
700 1 $aBUSO, G. S. C.
700 1 $aFALEIRO, F. G.
773 $tGenetics and Molecular Research$gv. 16, n. 3, 2017. gmr16039689.
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Registro original: |
Embrapa Hortaliças (CNPH) |
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