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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
03/08/2011 |
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Data da última atualização: |
03/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FREITAS, R. G.; MISSIO, R. F.; MATOS, F. S.; RESENDE, M. D. V. de; DIAS, L. A. S. |
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Afiliação: |
UFV; UFPR; Universidade Estadual de Goiás; MARCOS DEON VILELA DE RESENDE, CNPF; UFV. |
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Título: |
Genetic evaluation of Jatropha curcas: an important oilseed for biodiesel production. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Genetics and Molecular Research, Ribeirão Preto, v. 10, n. 3, p. 1490-1498, 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
Jatropha curcas, internationally and locally known, respectively, as physic nut and pinhão manso, is a highly promising species for biodiesel production in Brazil and other countries in the tropics. It is rustic, grows in warm regions and is easily cultivated. These characteristics and high-quality oil yields from the seeds have made this plant a priority for biodiesel programs in Brazil. Consequently, this species merits genetic investigations aimed at improving yields. Some studies have detected genetic variability in accessions in Africa and Asia. We have made the first genetic evaluation of J. curcas collected from Brazil. Our objective was to quantify genetic diversity and to estimate genetic parameters for growth and production traits and seed oil content. We evaluated 75 J. curcas progenies collected from Brazil and three from Cambodia. The mean oil content in the seeds was 31%, ranging from 16 to 45%. No genetic correlation between growth traits and seed oil content was found. However, high coefficients of genetic variation were found for plant height, number of branches, height of branches, and stem diameter. The highest individual narrow-sense heritabilities were found for leaf length (0.35) and width (0.34), stem diameter (0.24) and height of branches (0.21). We used a clustering algorithm to genetically identify the closest and most distant progenies, to assist in the development of new cultivars. Geographical diversity did not necessarily represent the genetic diversity among the accessions collected. These results are important for the continuity of breeding programs, aimed at obtaining cultivars with high grain yield and high oil content in seeds. MenosJatropha curcas, internationally and locally known, respectively, as physic nut and pinhão manso, is a highly promising species for biodiesel production in Brazil and other countries in the tropics. It is rustic, grows in warm regions and is easily cultivated. These characteristics and high-quality oil yields from the seeds have made this plant a priority for biodiesel programs in Brazil. Consequently, this species merits genetic investigations aimed at improving yields. Some studies have detected genetic variability in accessions in Africa and Asia. We have made the first genetic evaluation of J. curcas collected from Brazil. Our objective was to quantify genetic diversity and to estimate genetic parameters for growth and production traits and seed oil content. We evaluated 75 J. curcas progenies collected from Brazil and three from Cambodia. The mean oil content in the seeds was 31%, ranging from 16 to 45%. No genetic correlation between growth traits and seed oil content was found. However, high coefficients of genetic variation were found for plant height, number of branches, height of branches, and stem diameter. The highest individual narrow-sense heritabilities were found for leaf length (0.35) and width (0.34), stem diameter (0.24) and height of branches (0.21). We used a clustering algorithm to genetically identify the closest and most distant progenies, to assist in the development of new cultivars. Geographical diversity did not necessarily represent the genetic d... Mostrar Tudo |
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Palavras-Chave: |
Clustering; Genetic diversity; Oil content. |
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Thesaurus Nal: |
genetic correlation; heritability. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/39118/1/Deon-GMR-PinhaoManso-1.pdf
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Marc: |
LEADER 02387naa a2200229 a 4500
001 1897234
005 2018-01-03
008 2011 bl uuuu u00u1 u #d
100 1 $aFREITAS, R. G.
245 $aGenetic evaluation of Jatropha curcas$ban important oilseed for biodiesel production.$h[electronic resource]
260 $c2011
520 $aJatropha curcas, internationally and locally known, respectively, as physic nut and pinhão manso, is a highly promising species for biodiesel production in Brazil and other countries in the tropics. It is rustic, grows in warm regions and is easily cultivated. These characteristics and high-quality oil yields from the seeds have made this plant a priority for biodiesel programs in Brazil. Consequently, this species merits genetic investigations aimed at improving yields. Some studies have detected genetic variability in accessions in Africa and Asia. We have made the first genetic evaluation of J. curcas collected from Brazil. Our objective was to quantify genetic diversity and to estimate genetic parameters for growth and production traits and seed oil content. We evaluated 75 J. curcas progenies collected from Brazil and three from Cambodia. The mean oil content in the seeds was 31%, ranging from 16 to 45%. No genetic correlation between growth traits and seed oil content was found. However, high coefficients of genetic variation were found for plant height, number of branches, height of branches, and stem diameter. The highest individual narrow-sense heritabilities were found for leaf length (0.35) and width (0.34), stem diameter (0.24) and height of branches (0.21). We used a clustering algorithm to genetically identify the closest and most distant progenies, to assist in the development of new cultivars. Geographical diversity did not necessarily represent the genetic diversity among the accessions collected. These results are important for the continuity of breeding programs, aimed at obtaining cultivars with high grain yield and high oil content in seeds.
650 $agenetic correlation
650 $aheritability
653 $aClustering
653 $aGenetic diversity
653 $aOil content
700 1 $aMISSIO, R. F.
700 1 $aMATOS, F. S.
700 1 $aRESENDE, M. D. V. de
700 1 $aDIAS, L. A. S.
773 $tGenetics and Molecular Research, Ribeirão Preto$gv. 10, n. 3, p. 1490-1498, 2011.
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Registro original: |
Embrapa Florestas (CNPF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
27/03/2002 |
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Data da última atualização: |
30/03/2017 |
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Autoria: |
PELLEGRIN, A. O.; LEITE, R. C.; LAGE, A. P.; FIGUEIREDO; SERENO, J. R. B. |
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Afiliação: |
Escola de Veterinaria/Curso de Pos Graduacao em Medicina Veterinaria Preventiva. |
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Título: |
Prevalencia da Campilobacteriose Genital Bovina em touros de corte no Pantanal Sul Mato-grossense. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
In: SEMANA DA POS-GRADUACAO DA UFMG, 3., 2002, Belo Horizonte. Anais... Belo Horizonte: UFMG, 2002. nao paginado. |
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Idioma: |
Português |
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Conteúdo: |
A prevalencia de Campilobacteriose Genital Bovina foi estimada em touros do Pantanal Sul Mato-grossense. Foram testados 327 lavados prepuciais de touros provenientes de 19 propriedades para o diagnostico da Campilobacteriose Genital Bovina por imunofluorescencia direta (IFD). Cento e setenta touros de 17 (89,5%) propriedades foram postitivos a IFD para Campylobacter fetus, resultando em uma prevalencia de 52,3% (IC95%: 42,6% - 62,0%). A frequencia de touros positivos a IFD oara C. fetus nao foi significativamente diferente nas categorias de idades estudadas, entretanto houve uma maior frequencia de touros positivos a IFD para C. fetus nas propriedades com mais de 15.000 ha (x2= 6,40; g1= 1; P= 0,01), quando comparadas com as proprioedades menores que 15.000 ha, sendo estimado o risco relativo em 1,33 (1,07
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Palavras-Chave: |
Bovine; Parasita; Parasite. |
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Thesagro: |
Bovino; Campilobacteriose; Campylobacter Fetus. |
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Thesaurus NAL: |
Brazil; Pantanal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01795naa a2200265 a 4500
001 1784446
005 2017-03-30
008 2002 bl --- 0-- u #d
100 1 $aPELLEGRIN, A. O.
245 $aPrevalencia da Campilobacteriose Genital Bovina em touros de corte no Pantanal Sul Mato-grossense.
260 $c2002
520 $aA prevalencia de Campilobacteriose Genital Bovina foi estimada em touros do Pantanal Sul Mato-grossense. Foram testados 327 lavados prepuciais de touros provenientes de 19 propriedades para o diagnostico da Campilobacteriose Genital Bovina por imunofluorescencia direta (IFD). Cento e setenta touros de 17 (89,5%) propriedades foram postitivos a IFD para Campylobacter fetus, resultando em uma prevalencia de 52,3% (IC95%: 42,6% - 62,0%). A frequencia de touros positivos a IFD oara C. fetus nao foi significativamente diferente nas categorias de idades estudadas, entretanto houve uma maior frequencia de touros positivos a IFD para C. fetus nas propriedades com mais de 15.000 ha (x2= 6,40; g1= 1; P= 0,01), quando comparadas com as proprioedades menores que 15.000 ha, sendo estimado o risco relativo em 1,33 (1,07 <RR <1,66). estes resultados demonstram que a Campilobacteriose Genital Bovina apresenta uma lata prevalencia na regiao do Pantanal , estando esta provavelmente relacionada ao manejo utilizado na regiao.
650 $aBrazil
650 $aPantanal
650 $aBovino
650 $aCampilobacteriose
650 $aCampylobacter Fetus
653 $aBovine
653 $aParasita
653 $aParasite
700 1 $aLEITE, R. C.
700 1 $aLAGE, A. P.
700 1 $aFIGUEIREDO
700 1 $aSERENO, J. R. B.
773 $tIn: SEMANA DA POS-GRADUACAO DA UFMG, 3., 2002, Belo Horizonte. Anais... Belo Horizonte: UFMG, 2002. nao paginado.
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Embrapa Pantanal (CPAP) |
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