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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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Embrapa Mandioca e Fruticultura (CNPMF) |
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| 1. |  | ARZABE, C.; COSTA, J. R. da; LOPES, D. B.; NALERIO, E. S.; ANTUNES, E.; DINIZ, F. H.; FOGACA, F. H. dos S.; MOZZER, G. B.; ARAUJO, G. P. de; ALMEIDA, J. S. S. E.; NOGUEIRA, J. D.; MELLO, L. M. R. de; KIILL, L. H. P.; FREITAS, M. H. A. de; SAMPAIO, M. J. A. M.; SILVA, M. S. L. da; COSTA, P. da; MELO, P. E. de; GAMBETTA, R.; DIAS, T. A. B.; OLIVEIRA, Y. M. M. de; BUENO, Y. M.; HAMMES, V. S.; SANTOS, A. C. C. dos; PIEROZZI JUNIOR, I.; SILVA, A. C. da; ALARCAO, A. L. L.; REIS, A. E. G. dos; TORRES, D. A. P.; CONTINI, E.; PRADO, H. A. do; COSTA, J. L. da S.; DUARTE, J. A. M.; VILELA FILHO, O.; NASCIMENTO, P. P.; MENEZES, R. A. de L.; RAMOS, R. G. C.; BELTRAO, S. L. L.; ARAUJO, S. C. B. de; PEREIRA, V. da F. Contribuições da Embrapa para os 5 Ps: pessoas, prosperidade, planeta, parceria e paz. In: HAMMES, V. S.; LOPES, D. B.; SANTOS, A. C. C. dos; COSTA, J. R. da; OLIVEIRA, Y. M. M. de (Ed.). Pesquisa e inovação agropecuária na agenda 2030: contribuições da Embrapa e parceiros. Brasília, DF: Embrapa, 2018. E-book. Cap. 2. p. 40-79. (Objetivos de Desenvolvimento Sustentável, 18).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Agricultura Digital; Embrapa Agroenergia; Embrapa Agroindústria de Alimentos; Embrapa Amazônia Ocidental; Embrapa Florestas; Embrapa Gado de Leite; Embrapa Pecuária Sul; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Roraima; Embrapa Semiárido; Embrapa Solos; Embrapa Uva e Vinho. MenosEmbrapa Agricultura Digital; Embrapa Agroenergia; Embrapa Agroindústria de Alimentos; Embrapa Amazônia Ocidental; Embrapa Florestas; Embrapa Gado de Leite; Embrapa Pecuária Sul; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Roraima; Embrapa Semiárido... Mostrar Todas |
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| 2. | | ARZABE, C.; COSTA, J. R. da; LOPES, D. B.; NALERIO, E. S.; ANTUNES, E.; DINIZ, F. H.; FOGACA, F. H. dos S.; MOZZER, G. B.; ARAUJO, G. P. de; ALMEIDA, J. S. S. E.; NOGUEIRA, J. D.; MELLO, L. M. R. de; KIILL, L. H. P.; FREITAS, M. H. A. de; SAMPAIO, M. J. A. M.; SILVA, M. S. L. da; COSTA, P. da; MELO, P. E. de; GAMBETTA, R.; DIAS, T. A. B.; OLIVEIRA, Y. M. M. de; BUENO, Y. M.; HAMMES, V. S.; SANTOS, A. C. C. dos; PIEROZZI JUNIOR, I.; SILVA, A. C. da; ALARCAO, A. L. L.; REIS, A. E. G. dos; TORRES, D. A. P.; CONTINI, E.; PRADO, H. A. do; COSTA, J. L. da S.; DUARTE, J. A. M.; VILELA FILHO, O.; NASCIMENTO, P. P.; MENEZES, R. A. de L.; RAMOS, R. G. C.; BELTRAO, S. L. L.; ARAUJO, S. C. B. de; PEREIRA, V. da F. Contributions of Embrapa to the 5 Ps: people, prosperity, planet, partnership and peace. In: HAMMES, V. S.; LOPES, D. B.; SANTOS, A. C. C. dos; COSTA, J. R. da; OLIVEIRA, Y. M. M. de (Ed.). Agricultural research and innovation in the 2030 Agenda: contributions of Embrapa and partners. Brasília, DF: Embrapa, 2021. Cap. 2. p. 25-44. (Sustainable development goals, 18).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Agricultura Digital; Embrapa Agroindústria de Alimentos; Embrapa Amazônia Ocidental; Embrapa Florestas; Embrapa Gado de Leite; Embrapa Meio Ambiente; Embrapa Pecuária Sul; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Semiárido; Embrapa Solos; Embrapa Unidades Centrais; Embrapa Uva e Vinho. MenosEmbrapa Agricultura Digital; Embrapa Agroindústria de Alimentos; Embrapa Amazônia Ocidental; Embrapa Florestas; Embrapa Gado de Leite; Embrapa Meio Ambiente; Embrapa Pecuária Sul; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Semiárido; Embrapa Solos... Mostrar Todas |
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