caa a22 4500 445845392 CHVBK 20180317145357.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10709-011-9627-4 doi (NATIONALLICENCE)springer-10.1007/s10709-011-9627-4 Genetic structure of traditional varieties of bitter manioc in three soils in Central Amazonia [Elektronische Daten] [Alessandro Alves-Pereira, Nivaldo Peroni, Aluana Abreu, Rogério Gribel, Charles Clement] 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. Springer Science+Business Media B.V., 2012 Manihot esculenta nationallicence Microsatellites nationallicence Sweet manioc nationallicence Amazonian dark earths nationallicence Floodplain nationallicence Oxisols nationallicence Alves-Pereira Alessandro Instituto Nacional de Pesquisas da Amazônia, INPA, Av. André Araújo, 2936, Aleixo, 69060-001, Manaus, AM, Brazil aut Peroni Nivaldo Laboratório de Evolução Aplicada, Universidade Federal do Amazonas, Av. General Rodrigo Otávio, 3000, Coroado, 69077-000, Manaus, AM, Brazil aut Abreu Aluana APTA, Pólo Centro Sul, Rodovia SP 127km 30, CP28, Vila Fátima, 13400-970, Piracicaba, SP, Brazil aut Gribel Rogério Instituto Nacional de Pesquisas da Amazônia, INPA, Av. André Araújo, 2936, Aleixo, 69060-001, Manaus, AM, Brazil aut Clement Charles Instituto Nacional de Pesquisas da Amazônia, INPA, Av. André Araújo, 2936, Aleixo, 69060-001, Manaus, AM, Brazil aut Genetica Springer Netherlands 139/10(2011-10-01), 1259-1271 0016-6707 139:10<1259 2011 139 10709 https://doi.org/10.1007/s10709-011-9627-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10709-011-9627-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Alves-Pereira Alessandro Instituto Nacional de Pesquisas da Amazônia, INPA, Av. André Araújo, 2936, Aleixo, 69060-001, Manaus, AM, Brazil aut NATIONALLICENCE 700 1- Peroni Nivaldo Laboratório de Evolução Aplicada, Universidade Federal do Amazonas, Av. General Rodrigo Otávio, 3000, Coroado, 69077-000, Manaus, AM, Brazil aut NATIONALLICENCE 700 1- Abreu Aluana APTA, Pólo Centro Sul, Rodovia SP 127km 30, CP28, Vila Fátima, 13400-970, Piracicaba, SP, Brazil aut NATIONALLICENCE 700 1- Gribel Rogério Instituto Nacional de Pesquisas da Amazônia, INPA, Av. André Araújo, 2936, Aleixo, 69060-001, Manaus, AM, Brazil aut NATIONALLICENCE 700 1- Clement Charles Instituto Nacional de Pesquisas da Amazônia, INPA, Av. André Araújo, 2936, Aleixo, 69060-001, Manaus, AM, Brazil aut NATIONALLICENCE 773 0- Genetica Springer Netherlands 139/10(2011-10-01), 1259-1271 0016-6707 139:10<1259 2011 139 10709 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer