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Registro Completo |
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Biblioteca(s): |
Embrapa Algodão; Embrapa Unidades Centrais. |
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Data corrente: |
26/08/1993 |
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Data da última atualização: |
14/07/1998 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, J. G. de; BELTRAO, N. E. DE M.; SILVA, J. V. da. |
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Título: |
Supressao da floracao na assimilacao, crescimento e nutricao mineral do algodoeiro. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.19, n.11, p. 1327-1333, nov. 1984. |
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Idioma: |
Português |
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Conteúdo: |
Plantas de algodao herbaceo (Gossypium hirsutum L.r. latifolium Hutch.), cujos botoes florais foram regularmente eliminados, foram comparadas aos 88 e 107 dias apos a germinacao, com plantas com floracao normal. Houve aumentos significativos, nas duas epocas, para biomassa da raiz e parte aerea, taxa de assimilacao liquida, taxa de crescimento foliar absoluto e relativo, durancao da area foliar e potencial fotossintetico nas plantas cuja floracao foi suprimida. A atividade da invertase e o teor de proteina tambem aumentaram. A concentacao em acucares soluveis nao foi afetada; mas em amido foi aumentada, nas duas epocas, tanto na raiz como na parte aerea. No entanto, mesmo com um aumento no teor em proteina, o teor em N nao foi maior, e os teores em P, K, Ca e Mg foram mesmo menores, em virtude de uma maior biomassa. Estes resultados confirmam que a floracao e frutificacao representam uma modificacao importante no metabolismo do algodoeiro e que, nas regioes semiaridas com chuvas irregulares, o ideotipo do algodao deve consistir num desenvolvimento vegetativo suficiente e num sistema radicular vigoroso, e isto so pode ser obtido por uma floracao mais prolongada. |
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Palavras-Chave: |
Brasil; Campina Grande; Crescimento radicular; Drought resistance; Fotosintese; Paraiba; Radicular. |
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Thesagro: |
Algodão; Biomassa; Crescimento; Fotossíntese; Resistência; Resistência a Seca; Seca. |
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Thesaurus Nal: |
biomass; photosynthesis; root growth. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02119naa a2200349 a 4500
001 1104838
005 1998-07-14
008 1984 bl uuuu u00u1 u #d
100 1 $aSOUZA, J. G. de
245 $aSupressao da floracao na assimilacao, crescimento e nutricao mineral do algodoeiro.
260 $c1984
520 $aPlantas de algodao herbaceo (Gossypium hirsutum L.r. latifolium Hutch.), cujos botoes florais foram regularmente eliminados, foram comparadas aos 88 e 107 dias apos a germinacao, com plantas com floracao normal. Houve aumentos significativos, nas duas epocas, para biomassa da raiz e parte aerea, taxa de assimilacao liquida, taxa de crescimento foliar absoluto e relativo, durancao da area foliar e potencial fotossintetico nas plantas cuja floracao foi suprimida. A atividade da invertase e o teor de proteina tambem aumentaram. A concentacao em acucares soluveis nao foi afetada; mas em amido foi aumentada, nas duas epocas, tanto na raiz como na parte aerea. No entanto, mesmo com um aumento no teor em proteina, o teor em N nao foi maior, e os teores em P, K, Ca e Mg foram mesmo menores, em virtude de uma maior biomassa. Estes resultados confirmam que a floracao e frutificacao representam uma modificacao importante no metabolismo do algodoeiro e que, nas regioes semiaridas com chuvas irregulares, o ideotipo do algodao deve consistir num desenvolvimento vegetativo suficiente e num sistema radicular vigoroso, e isto so pode ser obtido por uma floracao mais prolongada.
650 $abiomass
650 $aphotosynthesis
650 $aroot growth
650 $aAlgodão
650 $aBiomassa
650 $aCrescimento
650 $aFotossíntese
650 $aResistência
650 $aResistência a Seca
650 $aSeca
653 $aBrasil
653 $aCampina Grande
653 $aCrescimento radicular
653 $aDrought resistance
653 $aFotosintese
653 $aParaiba
653 $aRadicular
700 1 $aBELTRAO, N. E. DE M.
700 1 $aSILVA, J. V. da
773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.19, n.11, p. 1327-1333, nov. 1984.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos; Embrapa Mandioca e Fruticultura. |
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Data corrente: |
21/12/2022 |
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Data da última atualização: |
27/06/2023 |
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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: |
SANTOS, C. S. DOS; SOUSA, M. B.; BRITO, A. C.; OLIVEIRA, L. A. de; CARVALHO, C. W. P. de; OLIVEIRA, E. J. de. |
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Afiliação: |
CRISTIANO SILVA DOS SANTOS, UFRB; MASSAINE BANDEIRA SOUSA, UFRB; ANA CARLA BRITO; LUCIANA ALVES DE OLIVEIRA, CNPMF; CARLOS WANDERLEI PILER DE CARVALHO, CTAA; EDER JORGE DE OLIVEIRA, CNPMF. |
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Título: |
Genome-wide association study of cassava starch paste properties. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
PLoS One , v. 17, n. 1, e0262888, 2022. |
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ISSN: |
1932-6203 |
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DOI: |
https://doi.org/10.1371/journal.pone.0262888 |
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Idioma: |
Inglês |
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Conteúdo: |
An understanding of cassava starch paste properties (CSPP) can contribute to the selection of clones with differentiated starches. This study aimed to identify genomic regions associated with CSPP using different genome-wide association study (GWAS) methods (MLM, MLMM, and Farm-CPU). The GWAS was performed using 23,078 single-nucleotide polymorphisms (SNPs). The rapid viscoanalyzer (RVA) parameters were pasting temperature (PastTemp), peak viscosity (PeakVisc), hot-paste viscosity (Hot-PVisc), cool-paste viscosty (Cold-PVisc), final viscosity (FinalVis), breakdown (BreDow), and setback (Setback). Broad phenotypic and molecular diversity was identified based on the genomic kinship matrix. The broad-sense heritability estimates (h2) ranged from moderate to high magnitudes (0.66 to 0.76). The linkage disequilibrium (LD) declined to between 0.3 and 2.0 Mb (r2<0.1) for most chromosomes, except chromosome 17, which exhibited an extensive LD. Thirteen SNPs were found to be significantly associated with CSPP, on chromosomes 3, 8, 17, and 18. Only the BreDow trait had no associated SNPs. The regional marker-trait associations on chromosome 18 indicate a LD block between 2907312 and 3567816 bp and that SNP S18_3081635 was associated with SetBack, FinalVis, and Cold-PVisc (all three GWAS methods) and with Hot-PVisc (MLM), indicating that this SNP can track these four traits simultaneously. The variance explained by the SNPs ranged from 0.13 to 0.18 for Set-Back, FinalVis, and Cold-PVisc and from 0.06 to 0.09 for PeakVisc and Hot-PVisc. The results indicated additive effects of the genetic control of Cold-PVisc, FinalVis, Hot-PVisc,and SetBack, especially on the large LD block on chromosome 18. One transcript encoding the glycosyl hydrolase family 35 enzymes on chromosome 17 and one encoding the mannose-p-dolichol utilization defect 1 protein on chromosome 18 were the most likely candidate genes for the regulation of CSPP. These results underline the potential for the assisted selection of high-value starches to improve cassava root quality through breeding programs. MenosAn understanding of cassava starch paste properties (CSPP) can contribute to the selection of clones with differentiated starches. This study aimed to identify genomic regions associated with CSPP using different genome-wide association study (GWAS) methods (MLM, MLMM, and Farm-CPU). The GWAS was performed using 23,078 single-nucleotide polymorphisms (SNPs). The rapid viscoanalyzer (RVA) parameters were pasting temperature (PastTemp), peak viscosity (PeakVisc), hot-paste viscosity (Hot-PVisc), cool-paste viscosty (Cold-PVisc), final viscosity (FinalVis), breakdown (BreDow), and setback (Setback). Broad phenotypic and molecular diversity was identified based on the genomic kinship matrix. The broad-sense heritability estimates (h2) ranged from moderate to high magnitudes (0.66 to 0.76). The linkage disequilibrium (LD) declined to between 0.3 and 2.0 Mb (r2<0.1) for most chromosomes, except chromosome 17, which exhibited an extensive LD. Thirteen SNPs were found to be significantly associated with CSPP, on chromosomes 3, 8, 17, and 18. Only the BreDow trait had no associated SNPs. The regional marker-trait associations on chromosome 18 indicate a LD block between 2907312 and 3567816 bp and that SNP S18_3081635 was associated with SetBack, FinalVis, and Cold-PVisc (all three GWAS methods) and with Hot-PVisc (MLM), indicating that this SNP can track these four traits simultaneously. The variance explained by the SNPs ranged from 0.13 to 0.18 for Set-Back, FinalVis, and Cold-PVis... Mostrar Tudo |
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Thesagro: |
Fécula; Genoma; Mandioca. |
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Thesaurus NAL: |
Cassava starch; Food paste; Genomics. |
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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/1150198/1/pone.0262888.pdf
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Marc: |
LEADER 02860naa a2200277 a 4500
001 2150198
005 2023-06-27
008 2022 bl uuuu u00u1 u #d
022 $a1932-6203
024 7 $ahttps://doi.org/10.1371/journal.pone.0262888$2DOI
100 1 $aSANTOS, C. S. DOS
245 $aGenome-wide association study of cassava starch paste properties.$h[electronic resource]
260 $c2022
520 $aAn understanding of cassava starch paste properties (CSPP) can contribute to the selection of clones with differentiated starches. This study aimed to identify genomic regions associated with CSPP using different genome-wide association study (GWAS) methods (MLM, MLMM, and Farm-CPU). The GWAS was performed using 23,078 single-nucleotide polymorphisms (SNPs). The rapid viscoanalyzer (RVA) parameters were pasting temperature (PastTemp), peak viscosity (PeakVisc), hot-paste viscosity (Hot-PVisc), cool-paste viscosty (Cold-PVisc), final viscosity (FinalVis), breakdown (BreDow), and setback (Setback). Broad phenotypic and molecular diversity was identified based on the genomic kinship matrix. The broad-sense heritability estimates (h2) ranged from moderate to high magnitudes (0.66 to 0.76). The linkage disequilibrium (LD) declined to between 0.3 and 2.0 Mb (r2<0.1) for most chromosomes, except chromosome 17, which exhibited an extensive LD. Thirteen SNPs were found to be significantly associated with CSPP, on chromosomes 3, 8, 17, and 18. Only the BreDow trait had no associated SNPs. The regional marker-trait associations on chromosome 18 indicate a LD block between 2907312 and 3567816 bp and that SNP S18_3081635 was associated with SetBack, FinalVis, and Cold-PVisc (all three GWAS methods) and with Hot-PVisc (MLM), indicating that this SNP can track these four traits simultaneously. The variance explained by the SNPs ranged from 0.13 to 0.18 for Set-Back, FinalVis, and Cold-PVisc and from 0.06 to 0.09 for PeakVisc and Hot-PVisc. The results indicated additive effects of the genetic control of Cold-PVisc, FinalVis, Hot-PVisc,and SetBack, especially on the large LD block on chromosome 18. One transcript encoding the glycosyl hydrolase family 35 enzymes on chromosome 17 and one encoding the mannose-p-dolichol utilization defect 1 protein on chromosome 18 were the most likely candidate genes for the regulation of CSPP. These results underline the potential for the assisted selection of high-value starches to improve cassava root quality through breeding programs.
650 $aCassava starch
650 $aFood paste
650 $aGenomics
650 $aFécula
650 $aGenoma
650 $aMandioca
700 1 $aSOUSA, M. B.
700 1 $aBRITO, A. C.
700 1 $aOLIVEIRA, L. A. de
700 1 $aCARVALHO, C. W. P. de
700 1 $aOLIVEIRA, E. J. de
773 $tPLoS One$gv. 17, n. 1, e0262888, 2022.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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