Genetic structure of traditional varieties of bitter manioc in three soils in Central Amazonia
Manioc is the most important food crop that originated in Amazonia. Many studies have increased our understanding of its evolutionary dynamics under cultivation. However, most of them focused on manioc cultivation in environments with low soil fertility, generally Oxisols. Recent ethnobotanical obse...
| Autor principal: | Alves-Pereira, Alessandro |
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| Outros Autores: | Peroni, Nivaldo, Abreu, Aluana Gonçalves, Gribel, Rogério, Clement, Charles Roland |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Genetica
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/18138 |
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oai:repositorio:1-18138 |
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oai:repositorio:1-18138 Genetic structure of traditional varieties of bitter manioc in three soils in Central Amazonia Alves-Pereira, Alessandro Peroni, Nivaldo Abreu, Aluana Gonçalves Gribel, Rogério Clement, Charles Roland Microsatellite Dna Gene Locus Genetic Variability Genetics Manihot Evolution, Molecular Phylogeny Soil South America Evolution, Molecular Genetic Loci Genetic Variation Manihot Microsatellite Repeats Phylogeny Soil South America Manihot Esculenta Manioc is the most important food crop that originated in Amazonia. Many studies have increased our understanding of its evolutionary dynamics under cultivation. However, most of them focused on manioc cultivation in environments with low soil fertility, generally Oxisols. Recent ethnobotanical observations showed that bitter manioc also performs well in high fertility soils, such as Amazonian dark earths (ADE) and the floodplain. We used 10 microsatellite loci to investigate the genetic diversity and structure of bitter manioc varieties grown in different soil types in communities of smallholder farmers along the middle Madeira River in Central Amazonia. The genetic diversity of some sweet varieties and seedlings was also evaluated. Adult individuals showed higher levels of genetic diversity and smaller inbreeding coefficients (A R = 5.52, H O = 0.576, f = 0.086) than seedlings (A R = 4.39, H O = 0.421, f = 0.242). Bitter manioc varieties from the floodplain showed higher levels of genetic diversity (A R = 5.19, H O = 0.606) than those from ADE (A R = 4.45, H O = 0.538) and from Oxisols (A R = 4.15, H O = 0.559). The varieties grown in the floodplain were strongly differentiated from the varieties grown in Oxisols (F ST = 0.093) and ADE (F ST = 0.108), suggesting important genetic structuring among varieties grown in the floodplain and upland soils (ADE and Oxisols). This is the first time that genetic divergence of bitter manioc varieties in cultivation in different Amazonian soils in a small geographic area is reported. © 2012 Springer Science+Business Media B.V. 2020-06-15T21:51:58Z 2020-06-15T21:51:58Z 2011 Artigo https://repositorio.inpa.gov.br/handle/1/18138 10.1007/s10709-011-9627-4 en Volume 139, Número 10, Pags. 1259-1271 Restrito Genetica |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Microsatellite Dna Gene Locus Genetic Variability Genetics Manihot Evolution, Molecular Phylogeny Soil South America Evolution, Molecular Genetic Loci Genetic Variation Manihot Microsatellite Repeats Phylogeny Soil South America Manihot Esculenta |
| spellingShingle |
Microsatellite Dna Gene Locus Genetic Variability Genetics Manihot Evolution, Molecular Phylogeny Soil South America Evolution, Molecular Genetic Loci Genetic Variation Manihot Microsatellite Repeats Phylogeny Soil South America Manihot Esculenta Alves-Pereira, Alessandro Genetic structure of traditional varieties of bitter manioc in three soils in Central Amazonia |
| topic_facet |
Microsatellite Dna Gene Locus Genetic Variability Genetics Manihot Evolution, Molecular Phylogeny Soil South America Evolution, Molecular Genetic Loci Genetic Variation Manihot Microsatellite Repeats Phylogeny Soil South America Manihot Esculenta |
| description |
Manioc is the most important food crop that originated in Amazonia. Many studies have increased our understanding of its evolutionary dynamics under cultivation. However, most of them focused on manioc cultivation in environments with low soil fertility, generally Oxisols. Recent ethnobotanical observations showed that bitter manioc also performs well in high fertility soils, such as Amazonian dark earths (ADE) and the floodplain. We used 10 microsatellite loci to investigate the genetic diversity and structure of bitter manioc varieties grown in different soil types in communities of smallholder farmers along the middle Madeira River in Central Amazonia. The genetic diversity of some sweet varieties and seedlings was also evaluated. Adult individuals showed higher levels of genetic diversity and smaller inbreeding coefficients (A R = 5.52, H O = 0.576, f = 0.086) than seedlings (A R = 4.39, H O = 0.421, f = 0.242). Bitter manioc varieties from the floodplain showed higher levels of genetic diversity (A R = 5.19, H O = 0.606) than those from ADE (A R = 4.45, H O = 0.538) and from Oxisols (A R = 4.15, H O = 0.559). The varieties grown in the floodplain were strongly differentiated from the varieties grown in Oxisols (F ST = 0.093) and ADE (F ST = 0.108), suggesting important genetic structuring among varieties grown in the floodplain and upland soils (ADE and Oxisols). This is the first time that genetic divergence of bitter manioc varieties in cultivation in different Amazonian soils in a small geographic area is reported. © 2012 Springer Science+Business Media B.V. |
| format |
Artigo |
| author |
Alves-Pereira, Alessandro |
| author2 |
Peroni, Nivaldo Abreu, Aluana Gonçalves Gribel, Rogério Clement, Charles Roland |
| author2Str |
Peroni, Nivaldo Abreu, Aluana Gonçalves Gribel, Rogério Clement, Charles Roland |
| title |
Genetic structure of traditional varieties of bitter manioc in three soils in Central Amazonia |
| title_short |
Genetic structure of traditional varieties of bitter manioc in three soils in Central Amazonia |
| title_full |
Genetic structure of traditional varieties of bitter manioc in three soils in Central Amazonia |
| title_fullStr |
Genetic structure of traditional varieties of bitter manioc in three soils in Central Amazonia |
| title_full_unstemmed |
Genetic structure of traditional varieties of bitter manioc in three soils in Central Amazonia |
| title_sort |
genetic structure of traditional varieties of bitter manioc in three soils in central amazonia |
| publisher |
Genetica |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/18138 |
| _version_ |
1787142965333852160 |
| score |
11.755432 |