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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
09/05/2023 |
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Data da última atualização: |
16/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEDRI, E. C. M. de; TIAGO, A. V.; CARDOSO, E. dos S.; HOOGERHEIDE, E. S. S.; ROSSI, A. A. B. |
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Afiliação: |
ELIANE CRISTINA MORENO DE PEDRI, UNIVERSIDADE DO ESTADO DE MATO GROSSO; AUANA VICENTE TIAGO, UNIVERSIDADE DO ESTADO DE MATO GROSSO; ELISA DOS SANTOS CARDOSO, UNIVERSIDADE DO ESTADO DE MATO GROSSO; EULALIA SOLER SOBREIRA HOOGERHEIDE, CPAMT; ANA APARECIDA BANDINI ROSSI, UNIVERSIDADE DO ESTADO DE MATO GROSSO. |
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Título: |
Are floral characters efficient in the phenotypic differentiation of cassava landraces? |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Scientia Plena, v. 18, n. 2, 021201-1, 2022. |
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ISSN: |
1808-2793 |
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DOI: |
https://doi.org/10.14808/sci.plena.2022.021201 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Manihot esculenta Crantz assumes a prominent role in the world for being one of the most cultivated foods in the tropics. The aim of this study was to verify whether floral characters are efficient to detect phenotypic variability among cassava landraces cultivated in the northern region of Mato Grosso state, Brazil. For this, at six months after planting, the period of the first flowering, the phenotypic characterization of the female and male flowers of 20 cassava landraces was carried out, using the characters: color of the sepals, color of the disc, color of the ovary, color of the stigma and color of the anthers. The relative frequency of the phenotypic classes of each descriptor was analyzed. Qualitative data were subjected to genetic diversity analysis by the procedure for multicategorical data (multiple classes). The floral characters were efficient in the phenotypic differentiation of the cassava landraces. The color of the sepals, color of the disc and color of the ovary were the characters that contributed to the variation found, therefore, they are useful for preliminary evaluations of the species. The UPGMA method grouped the cassava landraces into four distinct groups, which showed the phenotypic variability and confirmed the efficiency of the floral characters in separating the landraces evaluated in different groups and subgroups. With the analyses carried out, it was possible to propose a new phenotypic class for the color of the sepals (greenish purple), going from three to four classes, which allowed a better distinction among the evaluated material. | Resumo: Manihot esculenta Crantz assume papel de destaque no mundo por ser um dos alimentos básicos mais cultivados nos trópicos. O objetivo deste estudo foi verificar se caracteres florais são eficientes para detectar a variabilidade fenotípica entre etnovariedades de mandioca cultivadas na região norte do estado de Mato Grosso. Para tanto, aos seis meses após o plantio, período da primeira floração, foi realizada a caracterização fenotípica das flores femininas e masculinas de 20 etnovariedades de mandioca, utilizando os caracteres: cor das sépalas, cor do disco, cor do ovário, cor do estigma e cor das anteras. A frequência relativa das classes fenotípicas de cada descritor foi analisada. Os dados qualitativos foram submetidos à análise de diversidade genética pelo procedimento para dados multicategóricos, múltiplas classes. Os caracteres florais foram eficientes na diferenciação fenotípica das etnovariedades de mandioca. A cor das sépalas, cor do disco e cor do ovário foram os caracteres que contribuíram para a variação encontrada, sendo, portanto, úteis para as avaliações preliminares da espécie. O método UPGMA agrupou as etnovariedades de mandioca em quatro grupos distintos, evidenciando variabilidade fenotípica e confirmando a eficiência dos caracteres florais na separação das etnovariedades avaliadas em grupos e subgrupos distintos. Com as análises realizadas foi possível propor uma nova classe fenotípica para o caracter cor das sépalas (roxa-esverdeada), passando de três para quatro classes, permitindo melhor distinção entre o material avaliado. MenosAbstract: Manihot esculenta Crantz assumes a prominent role in the world for being one of the most cultivated foods in the tropics. The aim of this study was to verify whether floral characters are efficient to detect phenotypic variability among cassava landraces cultivated in the northern region of Mato Grosso state, Brazil. For this, at six months after planting, the period of the first flowering, the phenotypic characterization of the female and male flowers of 20 cassava landraces was carried out, using the characters: color of the sepals, color of the disc, color of the ovary, color of the stigma and color of the anthers. The relative frequency of the phenotypic classes of each descriptor was analyzed. Qualitative data were subjected to genetic diversity analysis by the procedure for multicategorical data (multiple classes). The floral characters were efficient in the phenotypic differentiation of the cassava landraces. The color of the sepals, color of the disc and color of the ovary were the characters that contributed to the variation found, therefore, they are useful for preliminary evaluations of the species. The UPGMA method grouped the cassava landraces into four distinct groups, which showed the phenotypic variability and confirmed the efficiency of the floral characters in separating the landraces evaluated in different groups and subgroups. With the analyses carried out, it was possible to propose a new phenotypic class for the color of the sepals (greenish p... Mostrar Tudo |
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Palavras-Chave: |
Diversidade Genética; Etnovariedade; Manihot esculenta Crantz; Variabilidade Genética. |
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Thesagro: |
Fenótipo; Flor; Genótipo; Mandioca; Manihot Esculenta. |
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Thesaurus Nal: |
Cassava; Flowers; Phenotypic variation. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1153592/1/2022-cpamt-artigo-essh-are-floral-characters-efficient-phenotypic-differentiation-cassava-landraces.pdf
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Marc: |
LEADER 04209naa a2200337 a 4500
001 2153592
005 2024-02-16
008 2022 bl uuuu u00u1 u #d
022 $a1808-2793
024 7 $ahttps://doi.org/10.14808/sci.plena.2022.021201$2DOI
100 1 $aPEDRI, E. C. M. de
245 $aAre floral characters efficient in the phenotypic differentiation of cassava landraces?$h[electronic resource]
260 $c2022
520 $aAbstract: Manihot esculenta Crantz assumes a prominent role in the world for being one of the most cultivated foods in the tropics. The aim of this study was to verify whether floral characters are efficient to detect phenotypic variability among cassava landraces cultivated in the northern region of Mato Grosso state, Brazil. For this, at six months after planting, the period of the first flowering, the phenotypic characterization of the female and male flowers of 20 cassava landraces was carried out, using the characters: color of the sepals, color of the disc, color of the ovary, color of the stigma and color of the anthers. The relative frequency of the phenotypic classes of each descriptor was analyzed. Qualitative data were subjected to genetic diversity analysis by the procedure for multicategorical data (multiple classes). The floral characters were efficient in the phenotypic differentiation of the cassava landraces. The color of the sepals, color of the disc and color of the ovary were the characters that contributed to the variation found, therefore, they are useful for preliminary evaluations of the species. The UPGMA method grouped the cassava landraces into four distinct groups, which showed the phenotypic variability and confirmed the efficiency of the floral characters in separating the landraces evaluated in different groups and subgroups. With the analyses carried out, it was possible to propose a new phenotypic class for the color of the sepals (greenish purple), going from three to four classes, which allowed a better distinction among the evaluated material. | Resumo: Manihot esculenta Crantz assume papel de destaque no mundo por ser um dos alimentos básicos mais cultivados nos trópicos. O objetivo deste estudo foi verificar se caracteres florais são eficientes para detectar a variabilidade fenotípica entre etnovariedades de mandioca cultivadas na região norte do estado de Mato Grosso. Para tanto, aos seis meses após o plantio, período da primeira floração, foi realizada a caracterização fenotípica das flores femininas e masculinas de 20 etnovariedades de mandioca, utilizando os caracteres: cor das sépalas, cor do disco, cor do ovário, cor do estigma e cor das anteras. A frequência relativa das classes fenotípicas de cada descritor foi analisada. Os dados qualitativos foram submetidos à análise de diversidade genética pelo procedimento para dados multicategóricos, múltiplas classes. Os caracteres florais foram eficientes na diferenciação fenotípica das etnovariedades de mandioca. A cor das sépalas, cor do disco e cor do ovário foram os caracteres que contribuíram para a variação encontrada, sendo, portanto, úteis para as avaliações preliminares da espécie. O método UPGMA agrupou as etnovariedades de mandioca em quatro grupos distintos, evidenciando variabilidade fenotípica e confirmando a eficiência dos caracteres florais na separação das etnovariedades avaliadas em grupos e subgrupos distintos. Com as análises realizadas foi possível propor uma nova classe fenotípica para o caracter cor das sépalas (roxa-esverdeada), passando de três para quatro classes, permitindo melhor distinção entre o material avaliado.
650 $aCassava
650 $aFlowers
650 $aPhenotypic variation
650 $aFenótipo
650 $aFlor
650 $aGenótipo
650 $aMandioca
650 $aManihot Esculenta
653 $aDiversidade Genética
653 $aEtnovariedade
653 $aManihot esculenta Crantz
653 $aVariabilidade Genética
700 1 $aTIAGO, A. V.
700 1 $aCARDOSO, E. dos S.
700 1 $aHOOGERHEIDE, E. S. S.
700 1 $aROSSI, A. A. B.
773 $tScientia Plena$gv. 18, n. 2, 021201-1, 2022.
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Registro original: |
Embrapa Agrossilvipastoril (CPAMT) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
05/05/2020 |
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Data da última atualização: |
05/05/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
ALMEIDA, A. C. de S.; DIERINGS, C. A.; BORELLA JÚNIOR, C.; JESUS, F. G.; BARRIGOSSI, J. A. F. |
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Afiliação: |
ANDRE CIRILO DE S. ALMEIDA, INSTITUTO FEDERAL GOIANO, Urutaí-GO; CASSIO A. DIERINGS, INSTITUTO FEDERAL GOIANO, Urutaí-GO; CELIO BORELLA JUNIOR, INSTITUTO FEDERAL GOIANO, Urutaí-GO; FLAVIO G. JESUS, INSTITUTO FEDERAL GOIANO, Urutaí-GO; JOSE ALEXANDRE F BARRIGOSSI, CNPAF. |
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Título: |
Resistance of rice genotypes to Tibraca limbativentris (Hemiptera: Pentatomidae). |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Economic Entomology, v. 113, n. 1, p. 482-488, Feb 2020. |
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ISSN: |
0022-0493 |
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DOI: |
10.1093/jee/toz277 |
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Idioma: |
Inglês |
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Conteúdo: |
The Tibraca limbativentris is a pest that causes rice crop damage and may lead to grain yield reductions of up to 90%. The most commonly used tactic for T. limbativentris control is chemical, which causes adverse effects on the environment. This study was conducted to identify sources of antixenosis and antibiosis resistance to T. limbativentris mediated by the hardness and diameter of the stem of the rice plant. Antibiosis and antixenosis tests were carried out with 22 rice genotypes of Brazilian and Asian origin. The Canela de Ferro, BRS Esmeralda, and Desconhecido Branco genotypes had the lowest proportions of stems showing symptoms of the damage caused by T. limbativentris. Canela de Ferro, Primavera, and IR 22 genotypes had the lowest nymphs survivorship and the genotypes Marabá Branco, Marabá, Skirivimankoti, Pepita, BR IRGA 409, Curinga, IR 40, Bonança, Desconhecido Branco, Bico Ganga, Primavera, and BRS Esmeralda were the least attractive to the insects. The genotypes BRS Esmeralda, Primavera, Desconhecido Branco, and Canela de Ferro were resistant to the rice stalk stink bug by antibiosis and/or antixenosis. These genotypes can be used directly by rice farmers for T. limbativentris management. Molecular biology studies should be conducted to identify and characterize resistance genes in these genotypes so that they can be used in breeding programs. |
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Palavras-Chave: |
Rice stalk stink bug. |
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Thesagro: |
Arroz; Oryza Sativa; Praga de Planta; Resistência Genética; Tibraca Limbativentris. |
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Thesaurus NAL: |
Antibiosis; Antixenosis; Host plants; Pest resistance; Rice. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02318naa a2200325 a 4500
001 2122078
005 2020-05-05
008 2020 bl uuuu u00u1 u #d
022 $a0022-0493
024 7 $a10.1093/jee/toz277$2DOI
100 1 $aALMEIDA, A. C. de S.
245 $aResistance of rice genotypes to Tibraca limbativentris (Hemiptera$bPentatomidae).$h[electronic resource]
260 $c2020
520 $aThe Tibraca limbativentris is a pest that causes rice crop damage and may lead to grain yield reductions of up to 90%. The most commonly used tactic for T. limbativentris control is chemical, which causes adverse effects on the environment. This study was conducted to identify sources of antixenosis and antibiosis resistance to T. limbativentris mediated by the hardness and diameter of the stem of the rice plant. Antibiosis and antixenosis tests were carried out with 22 rice genotypes of Brazilian and Asian origin. The Canela de Ferro, BRS Esmeralda, and Desconhecido Branco genotypes had the lowest proportions of stems showing symptoms of the damage caused by T. limbativentris. Canela de Ferro, Primavera, and IR 22 genotypes had the lowest nymphs survivorship and the genotypes Marabá Branco, Marabá, Skirivimankoti, Pepita, BR IRGA 409, Curinga, IR 40, Bonança, Desconhecido Branco, Bico Ganga, Primavera, and BRS Esmeralda were the least attractive to the insects. The genotypes BRS Esmeralda, Primavera, Desconhecido Branco, and Canela de Ferro were resistant to the rice stalk stink bug by antibiosis and/or antixenosis. These genotypes can be used directly by rice farmers for T. limbativentris management. Molecular biology studies should be conducted to identify and characterize resistance genes in these genotypes so that they can be used in breeding programs.
650 $aAntibiosis
650 $aAntixenosis
650 $aHost plants
650 $aPest resistance
650 $aRice
650 $aArroz
650 $aOryza Sativa
650 $aPraga de Planta
650 $aResistência Genética
650 $aTibraca Limbativentris
653 $aRice stalk stink bug
700 1 $aDIERINGS, C. A.
700 1 $aBORELLA JÚNIOR, C.
700 1 $aJESUS, F. G.
700 1 $aBARRIGOSSI, J. A. F.
773 $tJournal of Economic Entomology$gv. 113, n. 1, p. 482-488, Feb 2020.
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Embrapa Arroz e Feijão (CNPAF) |
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