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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
11/10/2018 |
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Data da última atualização: |
11/10/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALBUQUERQUE, H. Y. G. de; CARMO, C. D. do; BRITO, A. C.; OLIVEIRA, E. J. de. |
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Afiliação: |
HILÇANA YLKA GONÇALVES DE ALBUQUERQUE, UFRB; CATIA DIAS DO CARMO, UFRB; ANA CARLA BRITO; EDER JORGE DE OLIVEIRA, CNPMF. |
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Título: |
Genetic diversity of Manihot esculenta Crantz germplasm based on single-nucleotide polymorphism markers. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Annals Applied Biology, p. 1-14, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
Cassava (Manihot esculenta Crantz) is a species whose natural diversity has great food, industrial and energy potential. This study aimed to evaluate the genetic diversity, and population structure of 1,580 accessions belonging to the international germplasm conserved in Brazil using 20,601 single?nucleotide polymorphism markers. The average values of polymorphic information content (PIC), inbreeding (f), observed heterozygosity (Ho) and expected heterozygosity (He) were 0.24, 0.21, 0.23 and 0.30, respectively, presenting levels of genetic diversity compatible with the nature of the marker (predominantly biallelic) and with the species reproductive system. The mean values of He, Ho, PIC and f were similar for the 18 chromosomes of the species. At the individual level, f values ranged from 0.49 to 0.97, with an average of 0.69, whereas some cassava accessions showed f?>?0.90. The values of linkage disequilibrium ranged from 15 to 20?kb (r2?=?0.20). In the discriminant analysis of principal components (DAPC), 22 groups were formed with probabilities of assignment of individuals above 0.99. No association was observed between DAPC grouping and clusters based on phenotypic data (cyanogenic compound content and colour of the root pulp) and on genetic and geographic origin. However, the DAPC grouping resulted in greater variation between groups (14.85%). This information suggests extensive exchange of cassava germplasm in Brazil and wide molecular and phenotypic diversity. These results will provide a better understanding of the preserved genetic variability and the population organisation of the germplasm. MenosCassava (Manihot esculenta Crantz) is a species whose natural diversity has great food, industrial and energy potential. This study aimed to evaluate the genetic diversity, and population structure of 1,580 accessions belonging to the international germplasm conserved in Brazil using 20,601 single?nucleotide polymorphism markers. The average values of polymorphic information content (PIC), inbreeding (f), observed heterozygosity (Ho) and expected heterozygosity (He) were 0.24, 0.21, 0.23 and 0.30, respectively, presenting levels of genetic diversity compatible with the nature of the marker (predominantly biallelic) and with the species reproductive system. The mean values of He, Ho, PIC and f were similar for the 18 chromosomes of the species. At the individual level, f values ranged from 0.49 to 0.97, with an average of 0.69, whereas some cassava accessions showed f?>?0.90. The values of linkage disequilibrium ranged from 15 to 20?kb (r2?=?0.20). In the discriminant analysis of principal components (DAPC), 22 groups were formed with probabilities of assignment of individuals above 0.99. No association was observed between DAPC grouping and clusters based on phenotypic data (cyanogenic compound content and colour of the root pulp) and on genetic and geographic origin. However, the DAPC grouping resulted in greater variation between groups (14.85%). This information suggests extensive exchange of cassava germplasm in Brazil and wide molecular and phenotypic diversity. These r... Mostrar Tudo |
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Thesagro: |
Mandioca. |
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Thesaurus Nal: |
Cassava; Population structure; Variability. |
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Categoria do assunto: |
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Marc: |
LEADER 02240naa a2200205 a 4500
001 2097243
005 2018-10-11
008 2018 bl uuuu u00u1 u #d
100 1 $aALBUQUERQUE, H. Y. G. de
245 $aGenetic diversity of Manihot esculenta Crantz germplasm based on single-nucleotide polymorphism markers.$h[electronic resource]
260 $c2018
520 $aCassava (Manihot esculenta Crantz) is a species whose natural diversity has great food, industrial and energy potential. This study aimed to evaluate the genetic diversity, and population structure of 1,580 accessions belonging to the international germplasm conserved in Brazil using 20,601 single?nucleotide polymorphism markers. The average values of polymorphic information content (PIC), inbreeding (f), observed heterozygosity (Ho) and expected heterozygosity (He) were 0.24, 0.21, 0.23 and 0.30, respectively, presenting levels of genetic diversity compatible with the nature of the marker (predominantly biallelic) and with the species reproductive system. The mean values of He, Ho, PIC and f were similar for the 18 chromosomes of the species. At the individual level, f values ranged from 0.49 to 0.97, with an average of 0.69, whereas some cassava accessions showed f?>?0.90. The values of linkage disequilibrium ranged from 15 to 20?kb (r2?=?0.20). In the discriminant analysis of principal components (DAPC), 22 groups were formed with probabilities of assignment of individuals above 0.99. No association was observed between DAPC grouping and clusters based on phenotypic data (cyanogenic compound content and colour of the root pulp) and on genetic and geographic origin. However, the DAPC grouping resulted in greater variation between groups (14.85%). This information suggests extensive exchange of cassava germplasm in Brazil and wide molecular and phenotypic diversity. These results will provide a better understanding of the preserved genetic variability and the population organisation of the germplasm.
650 $aCassava
650 $aPopulation structure
650 $aVariability
650 $aMandioca
700 1 $aCARMO, C. D. do
700 1 $aBRITO, A. C.
700 1 $aOLIVEIRA, E. J. de
773 $tAnnals Applied Biology, p. 1-14, 2018.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Biblioteca(s): |
Embrapa Rondônia. |
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Data corrente: |
17/09/2012 |
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Data da última atualização: |
17/09/2012 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
OGRODOWCZYK, L.; VIEIRA JUNIOR, J. R.; FERNANDES, C. de F.; ALVES, R. C.; ALMEIDA, U. O.; MINOSSO, S. C. C. |
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Afiliação: |
JOSE ROBERTO VIEIRA JUNIOR, CPAF-RO; CLEBERSON DE FREITAS FERNANDES, CPAF-RO. |
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Título: |
Ocorrência da pinta preta dos citros (Guignardia citricarpa) nos municípios de Rondônia. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Tropical Plant Pathology, Brasília, DF, v. 37, 2012. 1 CD-ROM. Suplemento. Edição do 45º Congresso Brasileiro de Fitopatologia, 2012, Manaus. Resumo 792. |
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Idioma: |
Português |
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Conteúdo: |
Este trabalho teve como objetivo mapear a ocorrência da doença Pinta Preta em bananeiras do estado de Rondônia. O trabalho foi realizado em parceria com a Agência de Defesa Sanitária de Rondônia ? IDARON e levantou dados de 2004 a 2012. |
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Palavras-Chave: |
Bananicultura; Pinta preta dos citros. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/66440/1/792.pdf
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Marc: |
LEADER 00960nam a2200193 a 4500
001 1933894
005 2012-09-17
008 2012 bl uuuu u00u1 u #d
100 1 $aOGRODOWCZYK, L.
245 $aOcorrência da pinta preta dos citros (Guignardia citricarpa) nos municípios de Rondônia.$h[electronic resource]
260 $aTropical Plant Pathology, Brasília, DF, v. 37, 2012. 1 CD-ROM. Suplemento. Edição do 45º Congresso Brasileiro de Fitopatologia, 2012, Manaus. Resumo 792.$c2012
520 $aEste trabalho teve como objetivo mapear a ocorrência da doença Pinta Preta em bananeiras do estado de Rondônia. O trabalho foi realizado em parceria com a Agência de Defesa Sanitária de Rondônia ? IDARON e levantou dados de 2004 a 2012.
653 $aBananicultura
653 $aPinta preta dos citros
700 1 $aVIEIRA JUNIOR, J. R.
700 1 $aFERNANDES, C. de F.
700 1 $aALVES, R. C.
700 1 $aALMEIDA, U. O.
700 1 $aMINOSSO, S. C. C.
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