Influence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.4238/gmr18326 http://hdl.handle.net/11449/196974 |
Resumo: | Local cassava varieties play an important role in food security and the autonomy of subsistence farmers. They can be important resources for breeding and conservation programs. We examined the genetic diversity of cassava through ethnobotanical knowledge and microsatellite markers to understand the dynamics of conservation and management of the varieties used local small-scale farmers of a rural quilombo (a slave-descendant community) in Mato Grosso, Brazil. To obtain ethnobotanical information, semi-structured interviews were applied to 10 family units who cultivated cassava. Each family cultivated from one to five varieties, with 2.3 +/- 1.16 varieties/farmer, on average. Genetic analysis was was made of the 11 local varieties with microsatellite markers (12 loci). Despite low ethnobotanical diversity (H' = 2.05), high genetic diversity was found (Na = 6.75, HO = 0.92, HE = income mainly from cassava cultivation and flour production for the market, direct their variety choices to those that are most productive. Brava variety was the most frequent (found in eight family units) and was considered the most profitable for the production of flour Network analysis showed that propagule circulation and information occurs between the residents and also with other communities of the region, which are important sources of new varieties. Two farmers were identified as the most active in this network, showing potential as key elements for the circulation of propagating material. According to the cluster analysis using the genetic data, the most recently introduced varieties (Baixinha, Liberatona, Broto roxo, Mansa, Ramo branco, Carneiro and Cuiabana) are separated from those introduced a long time ago. The varieties pointed out as bitter by the farmers were also grouped together. The results showed the importance of traditional farmers in maintaining a high genetic diversity of manioc varieties, despite the directing of the choice of varieties to meet market needs. |
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Influence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, BrazilAgrobiodiversityEthnobotanyQuilomboOn farm conservationLocal cassava varieties play an important role in food security and the autonomy of subsistence farmers. They can be important resources for breeding and conservation programs. We examined the genetic diversity of cassava through ethnobotanical knowledge and microsatellite markers to understand the dynamics of conservation and management of the varieties used local small-scale farmers of a rural quilombo (a slave-descendant community) in Mato Grosso, Brazil. To obtain ethnobotanical information, semi-structured interviews were applied to 10 family units who cultivated cassava. Each family cultivated from one to five varieties, with 2.3 +/- 1.16 varieties/farmer, on average. Genetic analysis was was made of the 11 local varieties with microsatellite markers (12 loci). Despite low ethnobotanical diversity (H' = 2.05), high genetic diversity was found (Na = 6.75, HO = 0.92, HE = income mainly from cassava cultivation and flour production for the market, direct their variety choices to those that are most productive. Brava variety was the most frequent (found in eight family units) and was considered the most profitable for the production of flour Network analysis showed that propagule circulation and information occurs between the residents and also with other communities of the region, which are important sources of new varieties. Two farmers were identified as the most active in this network, showing potential as key elements for the circulation of propagating material. According to the cluster analysis using the genetic data, the most recently introduced varieties (Baixinha, Liberatona, Broto roxo, Mansa, Ramo branco, Carneiro and Cuiabana) are separated from those introduced a long time ago. The varieties pointed out as bitter by the farmers were also grouped together. The results showed the importance of traditional farmers in maintaining a high genetic diversity of manioc varieties, despite the directing of the choice of varieties to meet market needs.Univ Estadual Paulista, Inst Biociencias, Dept Bot, Campus Rio Claro, Rio Claro, SP, BrazilEmbrapa Agrossilvipastoril, Sinop, MG, BrazilUniv Estado Mato Grosso, Lab Genet Vegetal & Biol Mol, PPG Bionorte, Programa Posgrad Biodiversidade & Biotecnol Amazo, Campus Alta Floresta, Alta Floresta, MG, BrazilEmbrapa Sede, Brasilia, DF, BrazilUniv Sao Paulo, Escola Super Agron Luiz de Queiroz, Dept Genet, Piracicaba, SP, BrazilUniv Estadual Paulista, Inst Biociencias, Dept Bot, Campus Rio Claro, Rio Claro, SP, BrazilFunpec-editoraUniversidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Univ Estado Mato GrossoUniversidade de São Paulo (USP)Oler, J. R. L. [UNESP]Hoogerheide, E. S. S.Pinto, J. M. A.Tiago, A.Silva, J. F.Veasey, E. A.2020-12-10T20:02:14Z2020-12-10T20:02:14Z2019-07-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article15http://dx.doi.org/10.4238/gmr18326Genetics And Molecular Research. Ribeirao Preto: Funpec-editora, v. 18, n. 3, 15 p., 2019.http://hdl.handle.net/11449/19697410.4238/gmr18326WOS:000539330500001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGenetics And Molecular Researchinfo:eu-repo/semantics/openAccess2021-10-23T09:20:04Zoai:repositorio.unesp.br:11449/196974Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T09:20:04Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Influence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, Brazil |
title |
Influence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, Brazil |
spellingShingle |
Influence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, Brazil Oler, J. R. L. [UNESP] Agrobiodiversity Ethnobotany Quilombo On farm conservation |
title_short |
Influence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, Brazil |
title_full |
Influence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, Brazil |
title_fullStr |
Influence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, Brazil |
title_full_unstemmed |
Influence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, Brazil |
title_sort |
Influence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, Brazil |
author |
Oler, J. R. L. [UNESP] |
author_facet |
Oler, J. R. L. [UNESP] Hoogerheide, E. S. S. Pinto, J. M. A. Tiago, A. Silva, J. F. Veasey, E. A. |
author_role |
author |
author2 |
Hoogerheide, E. S. S. Pinto, J. M. A. Tiago, A. Silva, J. F. Veasey, E. A. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Univ Estado Mato Grosso Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Oler, J. R. L. [UNESP] Hoogerheide, E. S. S. Pinto, J. M. A. Tiago, A. Silva, J. F. Veasey, E. A. |
dc.subject.por.fl_str_mv |
Agrobiodiversity Ethnobotany Quilombo On farm conservation |
topic |
Agrobiodiversity Ethnobotany Quilombo On farm conservation |
description |
Local cassava varieties play an important role in food security and the autonomy of subsistence farmers. They can be important resources for breeding and conservation programs. We examined the genetic diversity of cassava through ethnobotanical knowledge and microsatellite markers to understand the dynamics of conservation and management of the varieties used local small-scale farmers of a rural quilombo (a slave-descendant community) in Mato Grosso, Brazil. To obtain ethnobotanical information, semi-structured interviews were applied to 10 family units who cultivated cassava. Each family cultivated from one to five varieties, with 2.3 +/- 1.16 varieties/farmer, on average. Genetic analysis was was made of the 11 local varieties with microsatellite markers (12 loci). Despite low ethnobotanical diversity (H' = 2.05), high genetic diversity was found (Na = 6.75, HO = 0.92, HE = income mainly from cassava cultivation and flour production for the market, direct their variety choices to those that are most productive. Brava variety was the most frequent (found in eight family units) and was considered the most profitable for the production of flour Network analysis showed that propagule circulation and information occurs between the residents and also with other communities of the region, which are important sources of new varieties. Two farmers were identified as the most active in this network, showing potential as key elements for the circulation of propagating material. According to the cluster analysis using the genetic data, the most recently introduced varieties (Baixinha, Liberatona, Broto roxo, Mansa, Ramo branco, Carneiro and Cuiabana) are separated from those introduced a long time ago. The varieties pointed out as bitter by the farmers were also grouped together. The results showed the importance of traditional farmers in maintaining a high genetic diversity of manioc varieties, despite the directing of the choice of varieties to meet market needs. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-07-30 2020-12-10T20:02:14Z 2020-12-10T20:02:14Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.4238/gmr18326 Genetics And Molecular Research. Ribeirao Preto: Funpec-editora, v. 18, n. 3, 15 p., 2019. http://hdl.handle.net/11449/196974 10.4238/gmr18326 WOS:000539330500001 |
url |
http://dx.doi.org/10.4238/gmr18326 http://hdl.handle.net/11449/196974 |
identifier_str_mv |
Genetics And Molecular Research. Ribeirao Preto: Funpec-editora, v. 18, n. 3, 15 p., 2019. 10.4238/gmr18326 WOS:000539330500001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Genetics And Molecular Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
15 |
dc.publisher.none.fl_str_mv |
Funpec-editora |
publisher.none.fl_str_mv |
Funpec-editora |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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