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Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
08/02/2017 |
Data da última atualização: |
22/03/2017 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
JESUS, O. N. de; SOARES, T. L.; OLIVEIRA, E. J. de; SANTOS, T. C. P.; FARIAS, D. H.; BRUCKNER, C. H.; NOVAES, Q. S. |
Afiliação: |
ONILDO NUNES DE JESUS, CNPMF; T. L. SOARES; EDER JORGE DE OLIVEIRA, CNPMF; T. C. P. SANTOS; D. H. FARIAS; C. H. BRUCKNER; Q. S. NOVAES. |
Título: |
Dissimilarity based on morphological characterization and evaluation of pollen viability and in vitro germination in Passiflora hybrids and backcrosses. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Acta Horticulturae, 1127, 2016 |
Série: |
0567-7572 |
Idioma: |
Inglês |
Notas: |
XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): International Symposium on Plant Breeding in Horticulture |
Conteúdo: |
Brazil is considered the main center of the genetic diversity and greatest worldwide producer of passion fruit. Passionfruit woodiness virus (Cowpea aphid born mosaic virus) is an important pathogenic agent of the passion fruit crop, causing severe losses in yield. Wild species of Passiflora are valuable sources of genetic resistance to this disease. Interspecific crosses are a promising method to incorporate resistance genes in commercial species (Passiflora edulis Sims.), despite problems with male sterility in developed hybrids. The objective of the present work was to study the dissimilarity based on morphological characteristics, and the viability and in vitro germination of pollen grains of progenitors, F1 hybrids, as well as progenies of the first generation of backcross BC1 [(P. edulis × P. cincinnata) × P. edulis]. Analysis of the severity of the viral disease showed that most genotypes were considered as susceptible to highly susceptible. The resistant hybrids did not show symptoms of foliar deformation. Cluster analysis showed two major groups; one represented by P. cincinnata and the second group by the hybrids and recurrent progenitor P. edulis. Morphological characterization of the hybrids showed phenotypic variation as to the color and shape of flowers, although the descriptors used were not able to show these differences. As expected, the progenitors (P. edulis and P. cincinnata) presented higher percentages of pollen viability, followed by the BC1-H45 progenies. The progenies of the BC1 will also be evaluated in the future with molecular markers aiming to accelerate the selection of hybrids with higher percentages of the genome of the recurrent parent. MenosBrazil is considered the main center of the genetic diversity and greatest worldwide producer of passion fruit. Passionfruit woodiness virus (Cowpea aphid born mosaic virus) is an important pathogenic agent of the passion fruit crop, causing severe losses in yield. Wild species of Passiflora are valuable sources of genetic resistance to this disease. Interspecific crosses are a promising method to incorporate resistance genes in commercial species (Passiflora edulis Sims.), despite problems with male sterility in developed hybrids. The objective of the present work was to study the dissimilarity based on morphological characteristics, and the viability and in vitro germination of pollen grains of progenitors, F1 hybrids, as well as progenies of the first generation of backcross BC1 [(P. edulis × P. cincinnata) × P. edulis]. Analysis of the severity of the viral disease showed that most genotypes were considered as susceptible to highly susceptible. The resistant hybrids did not show symptoms of foliar deformation. Cluster analysis showed two major groups; one represented by P. cincinnata and the second group by the hybrids and recurrent progenitor P. edulis. Morphological characterization of the hybrids showed phenotypic variation as to the color and shape of flowers, although the descriptors used were not able to show these differences. As expected, the progenitors (P. edulis and P. cincinnata) presented higher percentages of pollen viability, followed by the BC1-H45 progen... Mostrar Tudo |
Palavras-Chave: |
Passionfruit. |
Thesagro: |
Maracujá. |
Categoria do assunto: |
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Marc: |
LEADER 02569nam a2200229 a 4500 001 2063046 005 2017-03-22 008 2016 bl uuuu u00u1 u #d 100 1 $aJESUS, O. N. de 245 $aDissimilarity based on morphological characterization and evaluation of pollen viability and in vitro germination in Passiflora hybrids and backcrosses.$h[electronic resource] 260 $aActa Horticulturae, 1127$c2016 490 $a0567-7572 500 $aXXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): International Symposium on Plant Breeding in Horticulture 520 $aBrazil is considered the main center of the genetic diversity and greatest worldwide producer of passion fruit. Passionfruit woodiness virus (Cowpea aphid born mosaic virus) is an important pathogenic agent of the passion fruit crop, causing severe losses in yield. Wild species of Passiflora are valuable sources of genetic resistance to this disease. Interspecific crosses are a promising method to incorporate resistance genes in commercial species (Passiflora edulis Sims.), despite problems with male sterility in developed hybrids. The objective of the present work was to study the dissimilarity based on morphological characteristics, and the viability and in vitro germination of pollen grains of progenitors, F1 hybrids, as well as progenies of the first generation of backcross BC1 [(P. edulis × P. cincinnata) × P. edulis]. Analysis of the severity of the viral disease showed that most genotypes were considered as susceptible to highly susceptible. The resistant hybrids did not show symptoms of foliar deformation. Cluster analysis showed two major groups; one represented by P. cincinnata and the second group by the hybrids and recurrent progenitor P. edulis. Morphological characterization of the hybrids showed phenotypic variation as to the color and shape of flowers, although the descriptors used were not able to show these differences. As expected, the progenitors (P. edulis and P. cincinnata) presented higher percentages of pollen viability, followed by the BC1-H45 progenies. The progenies of the BC1 will also be evaluated in the future with molecular markers aiming to accelerate the selection of hybrids with higher percentages of the genome of the recurrent parent. 650 $aMaracujá 653 $aPassionfruit 700 1 $aSOARES, T. L. 700 1 $aOLIVEIRA, E. J. de 700 1 $aSANTOS, T. C. P. 700 1 $aFARIAS, D. H. 700 1 $aBRUCKNER, C. H. 700 1 $aNOVAES, Q. S.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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Registros recuperados : 5 | |
1. | | SANTOS, T. C. P.; FARIAS, D. da H.; JESUS, O. N. de. Caracterização de acessos de maracujazeiro e híbridos interespecíficos por descritores morfológicos. In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 8., 2014, Cruz das Almas, Ba. Pesquisa: despertando mentes para a inovação e transformando o futuro: [anais]. Cruz das Almas, BA, Embrapa Mandioca e Fruticultura, 2014.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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3. | | FARIAS, D. da H.; SANTOS, T. C. P.; JESUS, O. N. de; NOVAES, Q. S. de; BRUCKNE, C. H. Avaliação da resistência genética de genótipos de maracujazeiro ao Cowpea aphid borne mosaic virus. In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 8., 2014, Cruz das Almas, Ba. Pesquisa: despertando mentes para a inovação e transformando o futuro: [anais]. Cruz das Almas, BA, Embrapa Mandioca e Fruticultura, 2014.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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4. | | JESUS, O. N. de; SOARES, T. L.; OLIVEIRA, E. J. de; SANTOS, T. C. P.; FARIAS, D. H.; BRUCKNER, C. H.; NOVAES, Q. S. Evaluation of the morphologic, pollen viability and germination in progeny of the first backcross generation of passionfruit. In: INTERNATIONAL HORTICULTURAL CONGRESS, 29., 2014, Brisbane. Sustaining lives, livelihoods and landscapes. [Abstracts...]. Brisbane: AuSHS : ISHS, 2014.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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5. | | JESUS, O. N. de; SOARES, T. L.; OLIVEIRA, E. J. de; SANTOS, T. C. P.; FARIAS, D. H.; BRUCKNER, C. H.; NOVAES, Q. S. Dissimilarity based on morphological characterization and evaluation of pollen viability and in vitro germination in Passiflora hybrids and backcrosses. Acta Horticulturae, 1127, 2016 0567-7572 XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): International Symposium on Plant Breeding in HorticultureTipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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Registros recuperados : 5 | |
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Nenhum registro encontrado para a expressão de busca informada. |
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