Growing Cassava (Manihot esculenta) in Mato Grosso, Brazil: Genetic Diversity Conservation in Small-Scale Agriculture
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s12231-016-9331-5 http://hdl.handle.net/11449/161436 |
Resumo: | Growing Cassava ( Manihot esculenta ) in Mato Grosso, Brazil: Genetic Diversity Conservation in Small-Scale Agriculture. Cassava (Manihot esculenta Crantz) is a tropical species that stands out as a food source for developing countries. Within an ethnobotanical and socioeconomic context, this study aimed to compare the level of genetic diversity of cassava maintained by small farmers in three municipalities of the Cuiaba Lowland in the state of Mato Grosso, Brazil: Caceres, Porto Estrela, and Santo Antnio do Leverger. This region, which is included in the center of origin of cassava, is currently undergoing profound socioeconomic changes that can have negative impacts in the on farm conservation of cassava agrobiodiversity. We characterized 211 genotypes collected in 40 households in 10 communities, using 14 microsatellite loci. High levels for the observed (H (O) = 0.587) and expected (H (E) = 0.525) heterozygosities were found, whereas most of the genetic diversity was concentrated within communities (92%). A genetic differentiation was found between the municipality of Santo Antnio do Leverger and the municipalities of Caceres and Porto Estrela, not only due to a higher geographic distance among them, but also due to soil, climatic, and cultural factors. A different number of local varieties was observed in each municipality, while the number of unique varieties in each municipality was high, 83%, 84%, and 61%, respectively, representing an important aspect for the in situ conservation of this crop. Although local names provided by farmers were phenotypically coherent, intravarietal variability among local varieties sharing the same name was high (97%). Santo Antnio do Leverger was considered as a priority area for in situ conservation. Nevertheless, in view of the decline in local traditional agriculture systems and socioeconomic transformations in this region, public policies providing support and incentives to farmers are necessary. |
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Growing Cassava (Manihot esculenta) in Mato Grosso, Brazil: Genetic Diversity Conservation in Small-Scale AgricultureGenetic structurelocal varietiesManihot esculentamicrosatellitestraditional agricultureethnobotanyGrowing Cassava ( Manihot esculenta ) in Mato Grosso, Brazil: Genetic Diversity Conservation in Small-Scale Agriculture. Cassava (Manihot esculenta Crantz) is a tropical species that stands out as a food source for developing countries. Within an ethnobotanical and socioeconomic context, this study aimed to compare the level of genetic diversity of cassava maintained by small farmers in three municipalities of the Cuiaba Lowland in the state of Mato Grosso, Brazil: Caceres, Porto Estrela, and Santo Antnio do Leverger. This region, which is included in the center of origin of cassava, is currently undergoing profound socioeconomic changes that can have negative impacts in the on farm conservation of cassava agrobiodiversity. We characterized 211 genotypes collected in 40 households in 10 communities, using 14 microsatellite loci. High levels for the observed (H (O) = 0.587) and expected (H (E) = 0.525) heterozygosities were found, whereas most of the genetic diversity was concentrated within communities (92%). A genetic differentiation was found between the municipality of Santo Antnio do Leverger and the municipalities of Caceres and Porto Estrela, not only due to a higher geographic distance among them, but also due to soil, climatic, and cultural factors. A different number of local varieties was observed in each municipality, while the number of unique varieties in each municipality was high, 83%, 84%, and 61%, respectively, representing an important aspect for the in situ conservation of this crop. Although local names provided by farmers were phenotypically coherent, intravarietal variability among local varieties sharing the same name was high (97%). Santo Antnio do Leverger was considered as a priority area for in situ conservation. Nevertheless, in view of the decline in local traditional agriculture systems and socioeconomic transformations in this region, public policies providing support and incentives to farmers are necessary.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Sao Paulo, ESALQ, Dept Genet, Piracicaba, SP, BrazilUniv Estadual Paulista, Dept Ecol, Rio Claro, SP, BrazilUniv Estadual Mato Grosso UNEMAT, Fac Ciencias Agr & Biol, MT, Dept Ciencias Biol, Campus Caceres, Caceres, MT, BrazilInst Agron Campinas, Secao Hort, Campinas, SP, BrazilUniv Estadual Paulista, Dept Ecol, Rio Claro, SP, BrazilFAPESP: 2008/03822-3SpringerUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Univ Estadual Mato Grosso UNEMATInst Agron CampinasCarrasco, N. F.Oler, J. R. L. [UNESP]Marchetti, F. F. [UNESP]Carniello, M. A.Amorozo, M. C. M. [UNESP]Valle, T. L.Veasey, E. A.2018-11-26T16:32:44Z2018-11-26T16:32:44Z2016-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article15-28application/pdfhttp://dx.doi.org/10.1007/s12231-016-9331-5Economic Botany. New York: Springer, v. 70, n. 1, p. 15-28, 2016.0013-0001http://hdl.handle.net/11449/16143610.1007/s12231-016-9331-5WOS:000374581200002WOS000374581200002.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEconomic Botany0,533info:eu-repo/semantics/openAccess2023-10-22T06:07:30Zoai:repositorio.unesp.br:11449/161436Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:36:47.405237Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Growing Cassava (Manihot esculenta) in Mato Grosso, Brazil: Genetic Diversity Conservation in Small-Scale Agriculture |
title |
Growing Cassava (Manihot esculenta) in Mato Grosso, Brazil: Genetic Diversity Conservation in Small-Scale Agriculture |
spellingShingle |
Growing Cassava (Manihot esculenta) in Mato Grosso, Brazil: Genetic Diversity Conservation in Small-Scale Agriculture Carrasco, N. F. Genetic structure local varieties Manihot esculenta microsatellites traditional agriculture ethnobotany |
title_short |
Growing Cassava (Manihot esculenta) in Mato Grosso, Brazil: Genetic Diversity Conservation in Small-Scale Agriculture |
title_full |
Growing Cassava (Manihot esculenta) in Mato Grosso, Brazil: Genetic Diversity Conservation in Small-Scale Agriculture |
title_fullStr |
Growing Cassava (Manihot esculenta) in Mato Grosso, Brazil: Genetic Diversity Conservation in Small-Scale Agriculture |
title_full_unstemmed |
Growing Cassava (Manihot esculenta) in Mato Grosso, Brazil: Genetic Diversity Conservation in Small-Scale Agriculture |
title_sort |
Growing Cassava (Manihot esculenta) in Mato Grosso, Brazil: Genetic Diversity Conservation in Small-Scale Agriculture |
author |
Carrasco, N. F. |
author_facet |
Carrasco, N. F. Oler, J. R. L. [UNESP] Marchetti, F. F. [UNESP] Carniello, M. A. Amorozo, M. C. M. [UNESP] Valle, T. L. Veasey, E. A. |
author_role |
author |
author2 |
Oler, J. R. L. [UNESP] Marchetti, F. F. [UNESP] Carniello, M. A. Amorozo, M. C. M. [UNESP] Valle, T. L. Veasey, E. A. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) Univ Estadual Mato Grosso UNEMAT Inst Agron Campinas |
dc.contributor.author.fl_str_mv |
Carrasco, N. F. Oler, J. R. L. [UNESP] Marchetti, F. F. [UNESP] Carniello, M. A. Amorozo, M. C. M. [UNESP] Valle, T. L. Veasey, E. A. |
dc.subject.por.fl_str_mv |
Genetic structure local varieties Manihot esculenta microsatellites traditional agriculture ethnobotany |
topic |
Genetic structure local varieties Manihot esculenta microsatellites traditional agriculture ethnobotany |
description |
Growing Cassava ( Manihot esculenta ) in Mato Grosso, Brazil: Genetic Diversity Conservation in Small-Scale Agriculture. Cassava (Manihot esculenta Crantz) is a tropical species that stands out as a food source for developing countries. Within an ethnobotanical and socioeconomic context, this study aimed to compare the level of genetic diversity of cassava maintained by small farmers in three municipalities of the Cuiaba Lowland in the state of Mato Grosso, Brazil: Caceres, Porto Estrela, and Santo Antnio do Leverger. This region, which is included in the center of origin of cassava, is currently undergoing profound socioeconomic changes that can have negative impacts in the on farm conservation of cassava agrobiodiversity. We characterized 211 genotypes collected in 40 households in 10 communities, using 14 microsatellite loci. High levels for the observed (H (O) = 0.587) and expected (H (E) = 0.525) heterozygosities were found, whereas most of the genetic diversity was concentrated within communities (92%). A genetic differentiation was found between the municipality of Santo Antnio do Leverger and the municipalities of Caceres and Porto Estrela, not only due to a higher geographic distance among them, but also due to soil, climatic, and cultural factors. A different number of local varieties was observed in each municipality, while the number of unique varieties in each municipality was high, 83%, 84%, and 61%, respectively, representing an important aspect for the in situ conservation of this crop. Although local names provided by farmers were phenotypically coherent, intravarietal variability among local varieties sharing the same name was high (97%). Santo Antnio do Leverger was considered as a priority area for in situ conservation. Nevertheless, in view of the decline in local traditional agriculture systems and socioeconomic transformations in this region, public policies providing support and incentives to farmers are necessary. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-03-01 2018-11-26T16:32:44Z 2018-11-26T16:32:44Z |
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/10.1007/s12231-016-9331-5 Economic Botany. New York: Springer, v. 70, n. 1, p. 15-28, 2016. 0013-0001 http://hdl.handle.net/11449/161436 10.1007/s12231-016-9331-5 WOS:000374581200002 WOS000374581200002.pdf |
url |
http://dx.doi.org/10.1007/s12231-016-9331-5 http://hdl.handle.net/11449/161436 |
identifier_str_mv |
Economic Botany. New York: Springer, v. 70, n. 1, p. 15-28, 2016. 0013-0001 10.1007/s12231-016-9331-5 WOS:000374581200002 WOS000374581200002.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Economic Botany 0,533 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
15-28 application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
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 |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808128539888713728 |