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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
30/05/2019 |
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Data da última atualização: |
24/01/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GERHARDT, I. F. S.; AMARAL JÚNIOR, A. T. do; PENA, G. F.; GUIMARAES, L. J. M.; LIMA, V. J. de; VIVAS, M.; SANTOS, P. H. A. D.; FERREIRA, F. R. A.; FREITAS, M. S. M.; KAMPHORST, S. H. |
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Afiliação: |
Ismael Fernando Schegoscheski Gerhardt, University of Guelph; Antonio Teixeira do Amaral Junior, Universidade Estadual do Norte Fluminense Darcy Ribeiro; Guilherme Ferreira Pena, Universidade Estadual de Mato Grosso; LAURO JOSE MOREIRA GUIMARAES, CNPMS; Valter Jario de Lima, Universidade Estadual do Norte Fluminense Darcy Ribeiro; Marcelo Vivas, Universidade Estadual do Norte Fluminense Darcy Ribeiro; Pedro Henrique Araújo Diniz Santos, Universidade Estadual do Norte Fluminense Darcy Ribeiro; Fernando Rafael Alves Ferreira, Universidade Estadual do Norte Fluminense Darcy Ribeiro; Marta Simone Mendonça Freitas, Universidade Estadual do Norte Fluminense Darcy Ribeiro; Samuel Henrique Kamphorst, Universidade Estadual do Norte Fluminense Darcy Ribeiro. |
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Título: |
Genetic effects on the efficiency and responsiveness to phosphorus use in popcorn as estimated by diallel analysis. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Plos ONE, v. 14, n. 5, e0216980, May 2019. |
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DOI: |
10.1371/journal.pone.0216980 |
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Idioma: |
Inglês |
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Conteúdo: |
Agricultural expansion and the need for sustainable cultivation are challenges faced by researchers involved in the generation of new cultivars that can adapt to abiotic stress. Knowledge of the genetic effects of characteristics related to efficiency and responsiveness to phosphorus use must be considered when implementing methods to obtain better genotypes. The aim of this study was to characterize and select popcorn hybrids based on their efficiency and responsiveness to phosphorus use, and estimate their combining abilities and genetic effects via diallel analysis to implement improvement programs for sustainable agriculture. Eight contrasting inbred lines were used to obtain simple hybrids for diallel analysis. Twenty-eight diallelic hybrids plus the popcorn parental lines were evaluated at two different sites under two contrasting environments for soil phosphorus availability (6×6 lattice design). Grain yield, popping expansion, and volume of expanded popcorn per hectare were measured. A combined analysis of variance and a test of means were performed. The classification and utilization of the phosphorus use efficiency index, according to the grain yield performance of the hybrids under contrasting environments, was considered. Through model 2 of the Griffing?s diallel analysis method, the general and specific combining abilities were estimated, along with their environmental interactions. The best strategy to obtain genotypes that are efficient and responsive to phosphorus involves exploring popcorn hybrids using genitors that result in the accumulation of additive genes that promote popping expansion. Hybrids P7×L80, P7×L59, P7×L76, and P6×L80 presented promising results and may be evaluated as cultivation options in phosphorus-deficient soils. MenosAgricultural expansion and the need for sustainable cultivation are challenges faced by researchers involved in the generation of new cultivars that can adapt to abiotic stress. Knowledge of the genetic effects of characteristics related to efficiency and responsiveness to phosphorus use must be considered when implementing methods to obtain better genotypes. The aim of this study was to characterize and select popcorn hybrids based on their efficiency and responsiveness to phosphorus use, and estimate their combining abilities and genetic effects via diallel analysis to implement improvement programs for sustainable agriculture. Eight contrasting inbred lines were used to obtain simple hybrids for diallel analysis. Twenty-eight diallelic hybrids plus the popcorn parental lines were evaluated at two different sites under two contrasting environments for soil phosphorus availability (6×6 lattice design). Grain yield, popping expansion, and volume of expanded popcorn per hectare were measured. A combined analysis of variance and a test of means were performed. The classification and utilization of the phosphorus use efficiency index, according to the grain yield performance of the hybrids under contrasting environments, was considered. Through model 2 of the Griffing?s diallel analysis method, the general and specific combining abilities were estimated, along with their environmental interactions. The best strategy to obtain genotypes that are efficient and responsive to phosp... Mostrar Tudo |
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Palavras-Chave: |
Análise dialélica. |
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Thesagro: |
Agricultura Sustentável; Fósforo; Melhoramento Genético Vegetal; Milho Pipoca. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/197941/1/Genetic-effects.pdf
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Marc: |
LEADER 02724naa a2200301 a 4500
001 2109459
005 2020-01-24
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1371/journal.pone.0216980$2DOI
100 1 $aGERHARDT, I. F. S.
245 $aGenetic effects on the efficiency and responsiveness to phosphorus use in popcorn as estimated by diallel analysis.$h[electronic resource]
260 $c2019
520 $aAgricultural expansion and the need for sustainable cultivation are challenges faced by researchers involved in the generation of new cultivars that can adapt to abiotic stress. Knowledge of the genetic effects of characteristics related to efficiency and responsiveness to phosphorus use must be considered when implementing methods to obtain better genotypes. The aim of this study was to characterize and select popcorn hybrids based on their efficiency and responsiveness to phosphorus use, and estimate their combining abilities and genetic effects via diallel analysis to implement improvement programs for sustainable agriculture. Eight contrasting inbred lines were used to obtain simple hybrids for diallel analysis. Twenty-eight diallelic hybrids plus the popcorn parental lines were evaluated at two different sites under two contrasting environments for soil phosphorus availability (6×6 lattice design). Grain yield, popping expansion, and volume of expanded popcorn per hectare were measured. A combined analysis of variance and a test of means were performed. The classification and utilization of the phosphorus use efficiency index, according to the grain yield performance of the hybrids under contrasting environments, was considered. Through model 2 of the Griffing?s diallel analysis method, the general and specific combining abilities were estimated, along with their environmental interactions. The best strategy to obtain genotypes that are efficient and responsive to phosphorus involves exploring popcorn hybrids using genitors that result in the accumulation of additive genes that promote popping expansion. Hybrids P7×L80, P7×L59, P7×L76, and P6×L80 presented promising results and may be evaluated as cultivation options in phosphorus-deficient soils.
650 $aAgricultura Sustentável
650 $aFósforo
650 $aMelhoramento Genético Vegetal
650 $aMilho Pipoca
653 $aAnálise dialélica
700 1 $aAMARAL JÚNIOR, A. T. do
700 1 $aPENA, G. F.
700 1 $aGUIMARAES, L. J. M.
700 1 $aLIMA, V. J. de
700 1 $aVIVAS, M.
700 1 $aSANTOS, P. H. A. D.
700 1 $aFERREIRA, F. R. A.
700 1 $aFREITAS, M. S. M.
700 1 $aKAMPHORST, S. H.
773 $tPlos ONE$gv. 14, n. 5, e0216980, May 2019.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca(s): |
Embrapa Agroenergia; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Semiárido. |
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Data corrente: |
15/12/2023 |
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Data da última atualização: |
12/03/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
AIDAR, S. de T.; CHAVES, A. R. de M.; FERNANDES JUNIOR, P. I.; MORGANTE, C. V. |
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Afiliação: |
SAULO DE TARSO AIDAR, CPATSA; AGNALDO RODRIGUES DE MELO CHAVES, CPATSA; PAULO IVAN FERNANDES JUNIOR, CPATSA; CAROLINA VIANNA MORGANTE, CPATSA / Cenargen. |
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Título: |
Ferns and Lycophytes as new challenges: physiological and biochemical changes in desiccation and rehydration cycles of Selaginella convoluta (Selaginellaceae). |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Rodriguésia, v. 74, e00672023, 2023. |
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DOI: |
http://dx.doi.org/10.1590/2175-7860202374088 |
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Idioma: |
Inglês |
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Conteúdo: |
Vegetative desiccation tolerance (VDT) is a biological process that allows resurrection plants to complete desiccation-rehydration cycles and survive without permanent damage. Physiological and biochemical changes related to the VDT were evaluated in the lycophyte Selaginella convoluta from the Caatinga biome, a seasonally dry tropical forest of northeastern Brazil. As representative of the oldest division of extant vascular plants, the investigation of VDT mechanisms in this species serves as an opportunity to provide information for research communities interested in functional traits related to water-limited conditions. The experiments were performed with plants in their natural habitat, in dry and rainy seasons, and in pots under shade house conditions. Relative water content, chlorophyll a fluorescence, gas exchange, activity of antioxidant enzymes, concentration of chlorophylls, proteins, total amino acids, proline, and soluble carbohydrates in leaf tissues were evaluated throughout the process of complete dehydration and subsequent re-watering of intact plants. The overall results reveal the capacity of S. convoluta to tolerate extreme dehydration and rapidly recover upon rehydration. This species minimizes potential damages during the desiccation-rehydration cycle due to the presence of inductive mechanisms (photochemical preventing, sucrose accumulation) and constitutive mechanisms (antioxidant activity of catalase and ascorbate peroxidase), which share similarities with the VDT of both angiosperms and bryophytes. MenosVegetative desiccation tolerance (VDT) is a biological process that allows resurrection plants to complete desiccation-rehydration cycles and survive without permanent damage. Physiological and biochemical changes related to the VDT were evaluated in the lycophyte Selaginella convoluta from the Caatinga biome, a seasonally dry tropical forest of northeastern Brazil. As representative of the oldest division of extant vascular plants, the investigation of VDT mechanisms in this species serves as an opportunity to provide information for research communities interested in functional traits related to water-limited conditions. The experiments were performed with plants in their natural habitat, in dry and rainy seasons, and in pots under shade house conditions. Relative water content, chlorophyll a fluorescence, gas exchange, activity of antioxidant enzymes, concentration of chlorophylls, proteins, total amino acids, proline, and soluble carbohydrates in leaf tissues were evaluated throughout the process of complete dehydration and subsequent re-watering of intact plants. The overall results reveal the capacity of S. convoluta to tolerate extreme dehydration and rapidly recover upon rehydration. This species minimizes potential damages during the desiccation-rehydration cycle due to the presence of inductive mechanisms (photochemical preventing, sucrose accumulation) and constitutive mechanisms (antioxidant activity of catalase and ascorbate peroxidase), which share similarities... Mostrar Tudo |
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Palavras-Chave: |
Bioma Caatinga; Característica funcional; Características funcionais; Dessecação vegetativa; Estratégia de sobrevivência; Planta de ressurreição; Resistência à desidratação. |
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Thesagro: |
Caatinga; Samambaia. |
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Thesaurus NAL: |
Selaginella. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1159794/1/Ferns-and-Lycophytes-as-new-challenges-physiological-and-biochemical-changes-in-desiccation-and-rehydration-cycles-of-Selaginella-convoluta.pdf
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Marc: |
LEADER 02537naa a2200289 a 4500
001 2159794
005 2024-03-12
008 2023 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/2175-7860202374088$2DOI
100 1 $aAIDAR, S. de T.
245 $aFerns and Lycophytes as new challenges$bphysiological and biochemical changes in desiccation and rehydration cycles of Selaginella convoluta (Selaginellaceae).$h[electronic resource]
260 $c2023
520 $aVegetative desiccation tolerance (VDT) is a biological process that allows resurrection plants to complete desiccation-rehydration cycles and survive without permanent damage. Physiological and biochemical changes related to the VDT were evaluated in the lycophyte Selaginella convoluta from the Caatinga biome, a seasonally dry tropical forest of northeastern Brazil. As representative of the oldest division of extant vascular plants, the investigation of VDT mechanisms in this species serves as an opportunity to provide information for research communities interested in functional traits related to water-limited conditions. The experiments were performed with plants in their natural habitat, in dry and rainy seasons, and in pots under shade house conditions. Relative water content, chlorophyll a fluorescence, gas exchange, activity of antioxidant enzymes, concentration of chlorophylls, proteins, total amino acids, proline, and soluble carbohydrates in leaf tissues were evaluated throughout the process of complete dehydration and subsequent re-watering of intact plants. The overall results reveal the capacity of S. convoluta to tolerate extreme dehydration and rapidly recover upon rehydration. This species minimizes potential damages during the desiccation-rehydration cycle due to the presence of inductive mechanisms (photochemical preventing, sucrose accumulation) and constitutive mechanisms (antioxidant activity of catalase and ascorbate peroxidase), which share similarities with the VDT of both angiosperms and bryophytes.
650 $aSelaginella
650 $aCaatinga
650 $aSamambaia
653 $aBioma Caatinga
653 $aCaracterística funcional
653 $aCaracterísticas funcionais
653 $aDessecação vegetativa
653 $aEstratégia de sobrevivência
653 $aPlanta de ressurreição
653 $aResistência à desidratação
700 1 $aCHAVES, A. R. de M.
700 1 $aFERNANDES JUNIOR, P. I.
700 1 $aMORGANTE, C. V.
773 $tRodriguésia$gv. 74, e00672023, 2023.
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Embrapa Semiárido (CPATSA) |
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