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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
10/03/2023 |
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Data da última atualização: |
10/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CASTRO, F. C. de; FALEIRO, F. G.; OLIVEIRA, J. da S.; AMABILE, R. F.; MELO, J. V. P. |
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Afiliação: |
FELLIPE CELESTINO DE CASTRO; FABIO GELAPE FALEIRO, CPAC; JAMILE DA SILVA OLIVEIRA; RENATO FERNANDO AMABILE, CPAC; JOÃO VICTOR PINHEIRO MELO. |
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Título: |
Selection of stevia elite genotypes aiming at the development of cultivars adapted to the Brazilian Savanna. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Revista Colombiana de Ciencias Hortícolas, v. 16, n. 3,, e14727. |
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Páginas: |
14 p. |
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Idioma: |
Inglês |
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Conteúdo: |
In this work, the objective was to evaluate morphoagronomic traits, correlate and select elite genotypes of Stevia rebaudiana(Bert.) Hemsley with high productivity, andadapted to Brazilian Savanna conditions. A total of 230 genotypes were evaluated, from the Embrapa Cerrados Working Collection, from 2018 to 2019, with 24 evaluations, carried out in six cuts, with each cut representing a certain moment of generation of the response data of the analyzed genotypes. Four traits were analyzed: green biomass production (g), plant height (cm), tillering number and juvenile period of each individual. The means of the characteristics of each genotype were correlated according to Pearson's correlation coefficient. The Mulamba and Mock index was applied, with a selection intensity of 10%, to choose the superior genotypes. There are high positive correlations between juvenile period, height and green biomass production. The selected population were 23 superior genotypes, based on the application of rank sum resulting in high selection gains for the traits of interest. Finally, the selection of elite stevia genotypes with high production of green biomass, greater insensitivity to length of the daily light period, as well as taller plants, are essential for the continuity of the stevia breeding program on the Brazilian Savanna.Additional key words:Stevia rebaudiana(Bert.) Hemsley; breeding programs; correlation; yield increases; tillering; vegetative stage; plant height. |
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Thesagro: |
Adoçante; Melhoramento Genético Vegetal; Stevia Rebaudiana. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152231/1/Faleiro-Selection-of-stevia-elite-genotypes-aiming-at-the-development-of-cultivars.pdf
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Marc: |
LEADER 02161naa a2200217 a 4500
001 2152231
005 2023-03-10
008 2022 bl uuuu u00u1 u #d
100 1 $aCASTRO, F. C. de
245 $aSelection of stevia elite genotypes aiming at the development of cultivars adapted to the Brazilian Savanna.$h[electronic resource]
260 $c2022
300 $a14 p.
520 $aIn this work, the objective was to evaluate morphoagronomic traits, correlate and select elite genotypes of Stevia rebaudiana(Bert.) Hemsley with high productivity, andadapted to Brazilian Savanna conditions. A total of 230 genotypes were evaluated, from the Embrapa Cerrados Working Collection, from 2018 to 2019, with 24 evaluations, carried out in six cuts, with each cut representing a certain moment of generation of the response data of the analyzed genotypes. Four traits were analyzed: green biomass production (g), plant height (cm), tillering number and juvenile period of each individual. The means of the characteristics of each genotype were correlated according to Pearson's correlation coefficient. The Mulamba and Mock index was applied, with a selection intensity of 10%, to choose the superior genotypes. There are high positive correlations between juvenile period, height and green biomass production. The selected population were 23 superior genotypes, based on the application of rank sum resulting in high selection gains for the traits of interest. Finally, the selection of elite stevia genotypes with high production of green biomass, greater insensitivity to length of the daily light period, as well as taller plants, are essential for the continuity of the stevia breeding program on the Brazilian Savanna.Additional key words:Stevia rebaudiana(Bert.) Hemsley; breeding programs; correlation; yield increases; tillering; vegetative stage; plant height.
650 $aAdoçante
650 $aMelhoramento Genético Vegetal
650 $aStevia Rebaudiana
700 1 $aFALEIRO, F. G.
700 1 $aOLIVEIRA, J. da S.
700 1 $aAMABILE, R. F.
700 1 $aMELO, J. V. P.
773 $tRevista Colombiana de Ciencias Hortícolas$gv. 16, n. 3,, e14727.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Biblioteca |
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Origem |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura; Embrapa Tabuleiros Costeiros. |
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Data corrente: |
22/12/2022 |
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Data da última atualização: |
26/12/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
HOHENFELD, C. S.; PASSOS, A. R.; CARVALHO, H. W. L. de; OLIVEIRA, S. A. S. de; OLIVEIRA, E. J. de. |
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Afiliação: |
CAMILA SANTIAGO HOHENFELD; ADRIANA RODRIGUES PASSOS; HELIO WILSON LEMOS DE CARVALHO, CPATC; SAULO ALVES SANTOS DE OLIVEIRA, CNPMF; EDER JORGE DE OLIVEIRA, CNPMF. |
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Título: |
Genome-wide association study and selection for field resistance to cassava root rot disease and productive traits. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
PLos One, v. 17, n. 6, e0270020, June, 2022. |
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DOI: |
| https://doi.org/10.1371/journal.pone.0270020 |
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Idioma: |
Inglês |
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Conteúdo: |
Cassava root rot disease is caused by a complex of soil-borne pathogens and has high economic impacts because it directly affects the tuberous roots, which are the main commercial product. This study aimed to evaluate cassava genotypes for resistance to root rot disease in a field with a previous history of high disease incidence. It also aimed to identify possible genomic regions associated with field resistance based on genome-wide association studies. A total of 148 genotypes from Embrapa Mandioca and Fruticultura were evaluated over two years, including improved materials and curated germplasms. Analysis of phenotypic data was conducted, as well as a genomic association analysis, based on the general linear model, mixed linear model, and fixed and random model circulating probability unification. The observed high disease index (ω) was directly correlated with genotype survival, affecting plant height, shoot yield, and fresh root yield. The genotypes were grouped into five clusters, which were classified according to level of root rot resistance (i.e., extremely susceptible, susceptible, moderately susceptible, moderately resistant, and resistant). The 10 genotypes with the best performance in the field were selected as potential progenitors for the development of segregating progenies. Estimates of genomic kinship between these genotypes ranged from -0.183 to 0.671. The genotypes BGM-1171 and BGM-1190 showed the lowest degree of kinship with the other selected sources of resistance. The genotypes BGM-0209, BGM-0398, and BGM-0659 showed negative kinship values with most elite varieties, while BGM-0659 presented negative kinship with all landraces. A genome-wide association analysis detected five significant single nucleotide polymorphisms related to defense mechanisms against biotic and abiotic stresses, with putative association with fresh root yield in soil infested with root rot pathogens. These findings can be utilized to develop molecular selection for root rot resistance in cassava. MenosCassava root rot disease is caused by a complex of soil-borne pathogens and has high economic impacts because it directly affects the tuberous roots, which are the main commercial product. This study aimed to evaluate cassava genotypes for resistance to root rot disease in a field with a previous history of high disease incidence. It also aimed to identify possible genomic regions associated with field resistance based on genome-wide association studies. A total of 148 genotypes from Embrapa Mandioca and Fruticultura were evaluated over two years, including improved materials and curated germplasms. Analysis of phenotypic data was conducted, as well as a genomic association analysis, based on the general linear model, mixed linear model, and fixed and random model circulating probability unification. The observed high disease index (ω) was directly correlated with genotype survival, affecting plant height, shoot yield, and fresh root yield. The genotypes were grouped into five clusters, which were classified according to level of root rot resistance (i.e., extremely susceptible, susceptible, moderately susceptible, moderately resistant, and resistant). The 10 genotypes with the best performance in the field were selected as potential progenitors for the development of segregating progenies. Estimates of genomic kinship between these genotypes ranged from -0.183 to 0.671. The genotypes BGM-1171 and BGM-1190 showed the lowest degree of kinship with the other selected sour... Mostrar Tudo |
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Thesagro: |
Doença de Planta; Mandioca; Patógeno; Podridão Radicular; Raiz. |
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Thesaurus NAL: |
Cassava; Pathogens; Plant pathogens; Root diseases. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1150273/1/Genome-wide-association-study-and-selection....pdf
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Marc: |
LEADER 02904naa a2200289 a 4500
001 2150273
005 2022-12-26
008 2022 bl uuuu u00u1 u #d
024 7 $a| https://doi.org/10.1371/journal.pone.0270020$2DOI
100 1 $aHOHENFELD, C. S.
245 $aGenome-wide association study and selection for field resistance to cassava root rot disease and productive traits.$h[electronic resource]
260 $c2022
520 $aCassava root rot disease is caused by a complex of soil-borne pathogens and has high economic impacts because it directly affects the tuberous roots, which are the main commercial product. This study aimed to evaluate cassava genotypes for resistance to root rot disease in a field with a previous history of high disease incidence. It also aimed to identify possible genomic regions associated with field resistance based on genome-wide association studies. A total of 148 genotypes from Embrapa Mandioca and Fruticultura were evaluated over two years, including improved materials and curated germplasms. Analysis of phenotypic data was conducted, as well as a genomic association analysis, based on the general linear model, mixed linear model, and fixed and random model circulating probability unification. The observed high disease index (ω) was directly correlated with genotype survival, affecting plant height, shoot yield, and fresh root yield. The genotypes were grouped into five clusters, which were classified according to level of root rot resistance (i.e., extremely susceptible, susceptible, moderately susceptible, moderately resistant, and resistant). The 10 genotypes with the best performance in the field were selected as potential progenitors for the development of segregating progenies. Estimates of genomic kinship between these genotypes ranged from -0.183 to 0.671. The genotypes BGM-1171 and BGM-1190 showed the lowest degree of kinship with the other selected sources of resistance. The genotypes BGM-0209, BGM-0398, and BGM-0659 showed negative kinship values with most elite varieties, while BGM-0659 presented negative kinship with all landraces. A genome-wide association analysis detected five significant single nucleotide polymorphisms related to defense mechanisms against biotic and abiotic stresses, with putative association with fresh root yield in soil infested with root rot pathogens. These findings can be utilized to develop molecular selection for root rot resistance in cassava.
650 $aCassava
650 $aPathogens
650 $aPlant pathogens
650 $aRoot diseases
650 $aDoença de Planta
650 $aMandioca
650 $aPatógeno
650 $aPodridão Radicular
650 $aRaiz
700 1 $aPASSOS, A. R.
700 1 $aCARVALHO, H. W. L. de
700 1 $aOLIVEIRA, S. A. S. de
700 1 $aOLIVEIRA, E. J. de
773 $tPLos One$gv. 17, n. 6, e0270020, June, 2022.
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Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
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