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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: |
03/12/2021 |
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Data da última atualização: |
03/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OGBONNA, A. C.; ANDRADE, L. R. B. de; MUELLER, L. A.; OLIVEIRA, E. J. de; BAUCHET, G. J. |
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Afiliação: |
ALEX C. OGBONNA, Cornell University; LUCIANO ROGERIO BRAATZ DE ANDRADE; LUKAS A. MUELLER, Cornell University; EDER JORGE DE OLIVEIRA, CNPMF; GUILLAUME J. BAUCHET, Boyce Thompson Institute for Plant Research. |
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Título: |
Comprehensive genotyping of a Brazilian cassava (Manihot esculenta Crantz) germplasm bank: insights into diversification and domestication. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Theoretical and Applied Genetics, v.134, P.1343-1362, 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
Cassava (Manihot esculenta Crantz) is a major staple root crop of the tropics, originating from the Amazonian region. In this study, 3354 cassava landraces and modern breeding lines from the Embrapa Cassava Germplasm Bank (CGB) were characterized. All individuals were subjected to genotyping-by-sequencing (GBS), identifying 27,045 single-nucleotide polymorphisms (SNPs). Identity-by-state and population structure analyses revealed a unique set of 1536 individuals and 10 distinct genetic groups with heterogeneous linkage disequilibrium (LD). On this basis, a density of 1300?4700 SNP markers were selected for large-effect quantitative trait loci (QTL) detection. Identified genetic groups were further characterized for population genetics parameters including minor allele frequency (MAF), observed heterozygosity (Ho), effective population size estimate (Ne?) and polymorphism information content (PIC). Selection footprints and introgressions of M. glaziovii were detected. Spatial population structure analysis revealed five ancestral populations related to distinct Brazilian ecoregions. Estimation of historical relationships among identified populations suggests an early population split from Amazonian to Atlantic forest and Caatinga ecoregions and active gene flows. This study provides a thorough genetic characterization of ex situ germplasm resources from cassava?s center of origin, South America, with results shedding light on Brazilian cassava characteristics and its biogeographical landscape. These findings support and facilitate the use of genetic resources in modern breeding programs including implementation of association mapping and genomic selection strategies. MenosCassava (Manihot esculenta Crantz) is a major staple root crop of the tropics, originating from the Amazonian region. In this study, 3354 cassava landraces and modern breeding lines from the Embrapa Cassava Germplasm Bank (CGB) were characterized. All individuals were subjected to genotyping-by-sequencing (GBS), identifying 27,045 single-nucleotide polymorphisms (SNPs). Identity-by-state and population structure analyses revealed a unique set of 1536 individuals and 10 distinct genetic groups with heterogeneous linkage disequilibrium (LD). On this basis, a density of 1300?4700 SNP markers were selected for large-effect quantitative trait loci (QTL) detection. Identified genetic groups were further characterized for population genetics parameters including minor allele frequency (MAF), observed heterozygosity (Ho), effective population size estimate (Ne?) and polymorphism information content (PIC). Selection footprints and introgressions of M. glaziovii were detected. Spatial population structure analysis revealed five ancestral populations related to distinct Brazilian ecoregions. Estimation of historical relationships among identified populations suggests an early population split from Amazonian to Atlantic forest and Caatinga ecoregions and active gene flows. This study provides a thorough genetic characterization of ex situ germplasm resources from cassava?s center of origin, South America, with results shedding light on Brazilian cassava characteristics and its biogeogra... Mostrar Tudo |
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Thesagro: |
Mandioca. |
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Categoria do assunto: |
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Marc: |
LEADER 02298naa a2200181 a 4500
001 2137048
005 2021-12-03
008 2021 bl uuuu u00u1 u #d
100 1 $aOGBONNA, A. C.
245 $aComprehensive genotyping of a Brazilian cassava (Manihot esculenta Crantz) germplasm bank$binsights into diversification and domestication.$h[electronic resource]
260 $c2021
520 $aCassava (Manihot esculenta Crantz) is a major staple root crop of the tropics, originating from the Amazonian region. In this study, 3354 cassava landraces and modern breeding lines from the Embrapa Cassava Germplasm Bank (CGB) were characterized. All individuals were subjected to genotyping-by-sequencing (GBS), identifying 27,045 single-nucleotide polymorphisms (SNPs). Identity-by-state and population structure analyses revealed a unique set of 1536 individuals and 10 distinct genetic groups with heterogeneous linkage disequilibrium (LD). On this basis, a density of 1300?4700 SNP markers were selected for large-effect quantitative trait loci (QTL) detection. Identified genetic groups were further characterized for population genetics parameters including minor allele frequency (MAF), observed heterozygosity (Ho), effective population size estimate (Ne?) and polymorphism information content (PIC). Selection footprints and introgressions of M. glaziovii were detected. Spatial population structure analysis revealed five ancestral populations related to distinct Brazilian ecoregions. Estimation of historical relationships among identified populations suggests an early population split from Amazonian to Atlantic forest and Caatinga ecoregions and active gene flows. This study provides a thorough genetic characterization of ex situ germplasm resources from cassava?s center of origin, South America, with results shedding light on Brazilian cassava characteristics and its biogeographical landscape. These findings support and facilitate the use of genetic resources in modern breeding programs including implementation of association mapping and genomic selection strategies.
650 $aMandioca
700 1 $aANDRADE, L. R. B. de
700 1 $aMUELLER, L. A.
700 1 $aOLIVEIRA, E. J. de
700 1 $aBAUCHET, G. J.
773 $tTheoretical and Applied Genetics$gv.134, P.1343-1362, 2021.
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| 1. |  | GONZÁLEZ, P. L. R.; ALEXANDRE, M. A. V.; POTSCLAM-BARRO, M.; DUARTE, L. M. L.; GONZALEZ, G. L. M.; CHABI-JESUS, C.; RAMOS, A. F.; HARAKAVA, R.; LORENZI, H.; ASTUA, J. de F.; KITAJIMA, E. W. Two Novel Betarhabdovirins Infecting Ornamental Plants and the Peculiar Intracellular Behavior of the Cytorhabdovirus in the Liana Aristolochia gibertii. Viruses, v. 16, n. 322, 2024. 17 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
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