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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
06/04/2004 |
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Data da última atualização: |
06/04/2004 |
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Autoria: |
CARVALHO, L. J. C. B; SCHAAL, B. A; FUKUDA, W. M. G. |
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Afiliação: |
Embrapa Mandioca e Fruticultura, Cruz das Almas. |
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Título: |
Cassava (Manihot esculenta CRANTZ) phenetic relationships and genetic diversity revealed by morphological descriptors and rapd markers. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Revista Brasileira de Mandioca, Cruz das Almas, v.17, p.13, nov., 1998., Suplemento. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Morphological descriptors and Random Amplified Polymorphic DNA (RAPD) marker were used to assess the genetic diversity of cassava (Manihot esculenta Crantz). Ninety four cassava accessions, three major morphological descriptors (determined by PCA) and 96 polymorphic bands were analyzed by the mean of phenetic relationship. Cluster groups generated with jaccard similarity index by UPMGA method were furthe analyzed by the consensus tree method to assess the distinctness of the clusters indentified by UPGMA-derived phenogram. Genetic diversity of the morphological groups was assessed by the meaning of the estimated value of nucleotide diversity. The grouping pattern implied by the phenogram generated with UPGMA method showed different degree of resolution (truly bifurcated phenogram), different levels of tree imbalance, and no group correspondence between the two markers. A consensus fork index (Clc) value of 0.41 and 0.22 as well as the Mickevich's index (Clm) values of 0.03 and 0.01 were observed for morphological and RAPD markers respectively. Morphological descriptores revealed 22 distinct clusters of accessions with high resolution, while the RAPD markers revealed 18 distinct clusters with low resolution and high group imbalance. None of the cultivars clustered by one king of marker was clustered the same way by the other marker. The correlation between the cluster groups obtained by the two markers was very low (r=0.077) and not statistically significant. The genetic diversity among accessions in the morphological distinct clusters revealed by nucleotide diversity showed a nucleotide variation per site varying from 0.326 to 2.779 percent. MenosAbstract: Morphological descriptors and Random Amplified Polymorphic DNA (RAPD) marker were used to assess the genetic diversity of cassava (Manihot esculenta Crantz). Ninety four cassava accessions, three major morphological descriptors (determined by PCA) and 96 polymorphic bands were analyzed by the mean of phenetic relationship. Cluster groups generated with jaccard similarity index by UPMGA method were furthe analyzed by the consensus tree method to assess the distinctness of the clusters indentified by UPGMA-derived phenogram. Genetic diversity of the morphological groups was assessed by the meaning of the estimated value of nucleotide diversity. The grouping pattern implied by the phenogram generated with UPGMA method showed different degree of resolution (truly bifurcated phenogram), different levels of tree imbalance, and no group correspondence between the two markers. A consensus fork index (Clc) value of 0.41 and 0.22 as well as the Mickevich's index (Clm) values of 0.03 and 0.01 were observed for morphological and RAPD markers respectively. Morphological descriptores revealed 22 distinct clusters of accessions with high resolution, while the RAPD markers revealed 18 distinct clusters with low resolution and high group imbalance. None of the cultivars clustered by one king of marker was clustered the same way by the other marker. The correlation between the cluster groups obtained by the two markers was very low (r=0.077) and not statistically significant. The... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 02194naa a2200145 a 4500
001 1651836
005 2004-04-06
008 1998 bl uuuu u00u1 u #d
100 1 $aCARVALHO, L. J. C. B
245 $aCassava (Manihot esculenta CRANTZ) phenetic relationships and genetic diversity revealed by morphological descriptors and rapd markers.
260 $c1998
520 $aAbstract: Morphological descriptors and Random Amplified Polymorphic DNA (RAPD) marker were used to assess the genetic diversity of cassava (Manihot esculenta Crantz). Ninety four cassava accessions, three major morphological descriptors (determined by PCA) and 96 polymorphic bands were analyzed by the mean of phenetic relationship. Cluster groups generated with jaccard similarity index by UPMGA method were furthe analyzed by the consensus tree method to assess the distinctness of the clusters indentified by UPGMA-derived phenogram. Genetic diversity of the morphological groups was assessed by the meaning of the estimated value of nucleotide diversity. The grouping pattern implied by the phenogram generated with UPGMA method showed different degree of resolution (truly bifurcated phenogram), different levels of tree imbalance, and no group correspondence between the two markers. A consensus fork index (Clc) value of 0.41 and 0.22 as well as the Mickevich's index (Clm) values of 0.03 and 0.01 were observed for morphological and RAPD markers respectively. Morphological descriptores revealed 22 distinct clusters of accessions with high resolution, while the RAPD markers revealed 18 distinct clusters with low resolution and high group imbalance. None of the cultivars clustered by one king of marker was clustered the same way by the other marker. The correlation between the cluster groups obtained by the two markers was very low (r=0.077) and not statistically significant. The genetic diversity among accessions in the morphological distinct clusters revealed by nucleotide diversity showed a nucleotide variation per site varying from 0.326 to 2.779 percent.
700 1 $aSCHAAL, B. A
700 1 $aFUKUDA, W. M. G.
773 $tRevista Brasileira de Mandioca, Cruz das Almas$gv.17, p.13, nov., 1998., Suplemento.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
12/03/2012 |
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Data da última atualização: |
25/06/2012 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ALMEIDA, D. de O.; BARBOSA, F. F. L.; SILVA, S. X. de B.; MAGALHÃES, E. S.; NUNES, C. C. da S. |
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Afiliação: |
DÉCIO DE OLIVEIRA ALMEIDA, UFRB; FRANCISCO FERRAZ LARANJEIRA BARBOSA, CNPMF; SUELY XAVIER DE BRITO SILVA, ADAB; ELTON SANTOS MAGALHÃES, UFRB; CRISPINIANO CARLOS DA SILVA NUNES, ADAB. |
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Título: |
Mapeamento de hospedeiros de Huanglongbing (Candidatus Liberibacter sp ) no Recôncavo Baiano. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DE CIÊNCIA, TECNOLOGIA, INOVAÇÃO E CULTURA NO RECÔNCAVO DA BAHIA - RECITEC RECÔNCAVO. 1., 2011, Cruz das Almas. Anais... Cruz das Almas: Universidade Federal do Recôncavo da Bahia, 2011. 1 CD-ROM. |
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Páginas: |
2 p. |
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Idioma: |
Português |
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Notas: |
Em paralelo aconteceram também os seguintes eventos: V Seminário de Pesquisa do Recôncavo da Bahia; V Seminário Estudantil de Pesquisa da UFRB; V Seminário da Pós-Graduação da UFRB; II Seminário Regional de Pesquisa da EBDA; 5ª Jornada Científica da Embrapa Mandioca e Fruticultura; VIII Seminário Estudantil de Pesquisa e Extensão da FAMAM; Semana de Ciência, Tecnologia e Inovação no Agronegócio; Fórum de Gestores de Iniciação Científica e Tecnológica da Bahia; II Simpósio Baiano de Defesa Agropecuária; I Semana de Educação Tutorial da UFRB. |
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Conteúdo: |
A citricultura brasileira representa importante segmento do agronegócio, sendo São Paulo o Estado que detém o primeiro lugar no ranking nacional da produção. Proporcionalmente à pujança da sua citricultura, ele também lidera nas ocorrências fitossanitárias, as quais têm comprometido a rentabilidade do setor. |
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Palavras-Chave: |
Fitopatologia; HLB; Huanglongbing. |
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Thesagro: |
Citricultura; Praga. |
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Categoria do assunto: |
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H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/61160/1/MAPEAMENTO-DE-HOSPEDEIROS-DE-HUANGLONGBING-CANDIDATUS-LIBER.PDF
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/55552/1/Mapeamento-hospedeiros-FRANCISCO-LARANJEIRA-158-11.pdf
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Marc: |
LEADER 01727nam a2200241 a 4500
001 1926700
005 2012-06-25
008 2011 bl uuuu u00u1 u #d
100 1 $aALMEIDA, D. de O.
245 $aMapeamento de hospedeiros de Huanglongbing (Candidatus Liberibacter sp ) no Recôncavo Baiano.
260 $aIn: REUNIÃO ANUAL DE CIÊNCIA, TECNOLOGIA, INOVAÇÃO E CULTURA NO RECÔNCAVO DA BAHIA - RECITEC RECÔNCAVO. 1., 2011, Cruz das Almas. Anais... Cruz das Almas: Universidade Federal do Recôncavo da Bahia, 2011. 1 CD-ROM.$c2011
300 $a2 p.
500 $aEm paralelo aconteceram também os seguintes eventos: V Seminário de Pesquisa do Recôncavo da Bahia; V Seminário Estudantil de Pesquisa da UFRB; V Seminário da Pós-Graduação da UFRB; II Seminário Regional de Pesquisa da EBDA; 5ª Jornada Científica da Embrapa Mandioca e Fruticultura; VIII Seminário Estudantil de Pesquisa e Extensão da FAMAM; Semana de Ciência, Tecnologia e Inovação no Agronegócio; Fórum de Gestores de Iniciação Científica e Tecnológica da Bahia; II Simpósio Baiano de Defesa Agropecuária; I Semana de Educação Tutorial da UFRB.
520 $aA citricultura brasileira representa importante segmento do agronegócio, sendo São Paulo o Estado que detém o primeiro lugar no ranking nacional da produção. Proporcionalmente à pujança da sua citricultura, ele também lidera nas ocorrências fitossanitárias, as quais têm comprometido a rentabilidade do setor.
650 $aCitricultura
650 $aPraga
653 $aFitopatologia
653 $aHLB
653 $aHuanglongbing
700 1 $aBARBOSA, F. F. L.
700 1 $aSILVA, S. X. de B.
700 1 $aMAGALHÃES, E. S.
700 1 $aNUNES, C. C. da S.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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