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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
24/10/2019 |
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Data da última atualização: |
24/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLER, J. R. L.; HOOGERHEIDE, E. S. S.; PINTO, J. M. A.; TIAGO, A. V.; SILVA, J. F. V.; VEASEY, E. ANN. |
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Afiliação: |
JULIANA RODRIGUES LARROSA OLER, UNESP, Rio Claro, SP; EULALIA SOLER SOBREIRA HOOGERHEIDE, CPAMT; JOYCE MENDES ANDRADE PINTO, CPAMT; AUANA VICENTE TIAGO, UNEMAT, Alta Floresta, MT; JOAO FLAVIO VELOSO SILVA, CNAT; ELIZABETH ANN VEASEY, ESALQ, USP, Piracicaba, SP. |
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Título: |
Influence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Genetics and Molecular Research, v. 18, n. 3, gmr18326, 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
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 = 0.75, on average) in these local varieties. These farmers, who derive their 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. MenosLocal 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 = 0.75, on average) in these local varieties. These farmers, who derive their 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 po... Mostrar Tudo |
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Palavras-Chave: |
On-farm conservation. |
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Thesaurus Nal: |
Biodiversity; Ethnobotany. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/203647/1/2019-cpamt-eulalia-hoogerheide-influence-use-manioc-genetic-diversity-quilombo-communit-mato-grosso.pdf
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Marc: |
LEADER 02745naa a2200217 a 4500
001 2113457
005 2019-10-24
008 2019 bl uuuu u00u1 u #d
100 1 $aOLER, J. R. L.
245 $aInfluence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, Brazil.$h[electronic resource]
260 $c2019
520 $aLocal 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 = 0.75, on average) in these local varieties. These farmers, who derive their 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.
650 $aBiodiversity
650 $aEthnobotany
653 $aOn-farm conservation
700 1 $aHOOGERHEIDE, E. S. S.
700 1 $aPINTO, J. M. A.
700 1 $aTIAGO, A. V.
700 1 $aSILVA, J. F. V.
700 1 $aVEASEY, E. ANN
773 $tGenetics and Molecular Research$gv. 18, n. 3, gmr18326, 2019.
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Embrapa Agrossilvipastoril (CPAMT) |
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