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Registro Completo |
Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
Data corrente: |
08/08/1996 |
Data da última atualização: |
15/07/2016 |
Autoria: |
RAMOS, J. V.; MOREIRA, C. S.; SANTOS, R. N. dos. |
Título: |
Influência da idade na distribuição do sistema radicular da pimenta-do-reino na Bahia, Brasil. |
Ano de publicação: |
1984 |
Fonte/Imprenta: |
Revista Theobroma, Ilheus, v. 14, n. 1, p. 27-32, jan./mar. 1984. |
Idioma: |
Português |
Conteúdo: |
Foi estudada a distribuição do sistema radicular da pimenta-do-reino (Piper nigrum L.) cv. Cingapura em plantas de diferentes idades (12, 24, 30 e 42 meses), cultivadas em Oxisol, no Município de Una, Bahia. Para tanto, coletaram-se amostras de solo localizados simetricamente sobre uma mesma linha de cada lado do tronco, as distâncias de 35, 70 e 105 cm e profundidades de 0-30, 30-60 e 60-90 cm. encontrou-se maior concentração de radicelas na camada superficial do solo (0-30), variando de 67,36 a 85,15% em pimenteiras de 12 e 42 meses de idade, respectivamente. A porcentagem de radicelas decresceu com o aumento da idade das plantas na distância lateral de 35 cm do tronco. Entretanto, nas distâncias de 70 e 105 cm, estas porcentagens cresceram com a idade das plantas. |
Palavras-Chave: |
Bahia; Brasil; Root system; Soils; Solos; Tablelands; Tabuleiros; Una. |
Thesagro: |
Pimenteira; Piper Nigrum; Sistema Radicular. |
Thesaurus Nal: |
black pepper. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01568naa a2200289 a 4500 001 1355071 005 2016-07-15 008 1984 bl uuuu u00u1 u #d 100 1 $aRAMOS, J. V. 245 $aInfluência da idade na distribuição do sistema radicular da pimenta-do-reino na Bahia, Brasil.$h[electronic resource] 260 $c1984 520 $aFoi estudada a distribuição do sistema radicular da pimenta-do-reino (Piper nigrum L.) cv. Cingapura em plantas de diferentes idades (12, 24, 30 e 42 meses), cultivadas em Oxisol, no Município de Una, Bahia. Para tanto, coletaram-se amostras de solo localizados simetricamente sobre uma mesma linha de cada lado do tronco, as distâncias de 35, 70 e 105 cm e profundidades de 0-30, 30-60 e 60-90 cm. encontrou-se maior concentração de radicelas na camada superficial do solo (0-30), variando de 67,36 a 85,15% em pimenteiras de 12 e 42 meses de idade, respectivamente. A porcentagem de radicelas decresceu com o aumento da idade das plantas na distância lateral de 35 cm do tronco. Entretanto, nas distâncias de 70 e 105 cm, estas porcentagens cresceram com a idade das plantas. 650 $ablack pepper 650 $aPimenteira 650 $aPiper Nigrum 650 $aSistema Radicular 653 $aBahia 653 $aBrasil 653 $aRoot system 653 $aSoils 653 $aSolos 653 $aTablelands 653 $aTabuleiros 653 $aUna 700 1 $aMOREIRA, C. S. 700 1 $aSANTOS, R. N. dos 773 $tRevista Theobroma, Ilheus$gv. 14, n. 1, p. 27-32, jan./mar. 1984.
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Embrapa Tabuleiros Costeiros (CPATC) |
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Registro Completo
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
24/03/2021 |
Data da última atualização: |
03/05/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
ALEKCEVETCH, J. C.; PASSIANOTTO, A. L. de L.; FERREIRA, E. G. C.; SANTOS, A. B. dos; SILVA, D. C. G. da; DIAS, W. P.; BELZILE, F.; ABDELNOOR, R. V.; MARCELINO-GUIMARÃES, F. C. |
Afiliação: |
JEAN CARLOS ALEKCEVETCH, Universidade Estadual de Londrina, UEL, Londrina, PR.; ANDRÉ LUIZ DE LIMA PASSIANOTTO, University of Guelph, Guelph, Canada.; EVERTON GERALDO CAPOTE FERREIRA, Universidade Estadual de Londrina, UEL, Londrina, PR.; ADRIANA BROMBINI DOS SANTOS, CNPSO; DANIELLE CRISTINA GREGORIO DA SILVA, CNPSO; WALDIR PEREIRA DIAS, CNPSO; FRANÇOIS BELZILE, Université Laval, Quebec City, Quebec , Canada.; RICARDO VILELA ABDELNOOR, CNPSO; FRANCISMAR CORREA MARCELINO GUIMARA, CNPSO. |
Título: |
Genome-wide association study for resistance to the Meloidogyne javanica causing root-knot nematode in soybean. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Theoretical and Applied Genetics, v. 134, p. 777-792, 2021. |
DOI: |
https://doi.org/10.1007/s00122-020-03723-9 |
Idioma: |
Inglês |
Notas: |
Artigo de acesso aberto. |
Conteúdo: |
Key message A locus on chromosome 13, containing multiple TIR-NB-LRR genes and SNPs associated with M. javanica resistance, was identified using a combination of GWAS, resequencing, genetic mapping and expression profiling. Abstract Meloidogyne javanica, a root-knot nematode, is an important problem in soybean-growing areas, leading to severe yield losses. Some accessions have been identified carrying resistance loci to this nematode. In this study, a set of 317 soybean accessions was characterized for resistance to M. javanica. A genome-wide association study was performed using SNPs from genotyping-by-sequencing, and a region of 29.2 kb on chromosome 13 was identified. An analysis of haplotypes showed that SNPs were able to discriminate between susceptible and resistant accessions, with 25 accessions sharing the haplotype associated with resistance. Furthermore, five accessions that exhibited resistance without carrying this haplotype may carry different loci conferring resistance to M. javanica. We also conducted the screening of the SNPs in the USDA soybean germplasm, revealing that several soybean accessions previously reported as resistant to other nematodes also shared the resistance haplotype on chromosome 13. Two SNP-based TaqMan® assays were developed and validated in two panels of soybean cultivars and in biparental populations. In silico analysis of the region associated with resistance identified the occurrence of genes with structural similarity with classical major resistance genes (NBS-LRR genes). Specifically, several nonsynonymous SNPs were observed in Glyma.13g194800 and Glyma.13g194900. The expression profile of these candidate genes demonstrated that the two gene models were up-regulated in the resistance source PI 505,099 after nematode infection. Overall, the SNPs associated with resistance and the genes identified constitute an important tool for introgression of resistance to the root-knot nematode by marker-assisted selection in soybean breeding programs. MenosKey message A locus on chromosome 13, containing multiple TIR-NB-LRR genes and SNPs associated with M. javanica resistance, was identified using a combination of GWAS, resequencing, genetic mapping and expression profiling. Abstract Meloidogyne javanica, a root-knot nematode, is an important problem in soybean-growing areas, leading to severe yield losses. Some accessions have been identified carrying resistance loci to this nematode. In this study, a set of 317 soybean accessions was characterized for resistance to M. javanica. A genome-wide association study was performed using SNPs from genotyping-by-sequencing, and a region of 29.2 kb on chromosome 13 was identified. An analysis of haplotypes showed that SNPs were able to discriminate between susceptible and resistant accessions, with 25 accessions sharing the haplotype associated with resistance. Furthermore, five accessions that exhibited resistance without carrying this haplotype may carry different loci conferring resistance to M. javanica. We also conducted the screening of the SNPs in the USDA soybean germplasm, revealing that several soybean accessions previously reported as resistant to other nematodes also shared the resistance haplotype on chromosome 13. Two SNP-based TaqMan® assays were developed and validated in two panels of soybean cultivars and in biparental populations. In silico analysis of the region associated with resistance identified the occurrence of genes with structural similarity with classical ... Mostrar Tudo |
Thesagro: |
Galha; Genoma; Meloidogyne Javanica; Nematóide; Resistência; Soja. |
Thesaurus NAL: |
Genome-wide association study; Resistance mechanisms; Root-knot nematodes; Soybeans. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/222104/1/Alekcevetch2021-Article-Genome-wideAssociationStudyFor.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/222143/1/Alekcevetch2021-Article-Genome-wideAssociationStudyFor.pdf
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Marc: |
LEADER 03125naa a2200361 a 4500 001 2130887 005 2021-05-03 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1007/s00122-020-03723-9$2DOI 100 1 $aALEKCEVETCH, J. C. 245 $aGenome-wide association study for resistance to the Meloidogyne javanica causing root-knot nematode in soybean.$h[electronic resource] 260 $c2021 500 $aArtigo de acesso aberto. 520 $aKey message A locus on chromosome 13, containing multiple TIR-NB-LRR genes and SNPs associated with M. javanica resistance, was identified using a combination of GWAS, resequencing, genetic mapping and expression profiling. Abstract Meloidogyne javanica, a root-knot nematode, is an important problem in soybean-growing areas, leading to severe yield losses. Some accessions have been identified carrying resistance loci to this nematode. In this study, a set of 317 soybean accessions was characterized for resistance to M. javanica. A genome-wide association study was performed using SNPs from genotyping-by-sequencing, and a region of 29.2 kb on chromosome 13 was identified. An analysis of haplotypes showed that SNPs were able to discriminate between susceptible and resistant accessions, with 25 accessions sharing the haplotype associated with resistance. Furthermore, five accessions that exhibited resistance without carrying this haplotype may carry different loci conferring resistance to M. javanica. We also conducted the screening of the SNPs in the USDA soybean germplasm, revealing that several soybean accessions previously reported as resistant to other nematodes also shared the resistance haplotype on chromosome 13. Two SNP-based TaqMan® assays were developed and validated in two panels of soybean cultivars and in biparental populations. In silico analysis of the region associated with resistance identified the occurrence of genes with structural similarity with classical major resistance genes (NBS-LRR genes). Specifically, several nonsynonymous SNPs were observed in Glyma.13g194800 and Glyma.13g194900. The expression profile of these candidate genes demonstrated that the two gene models were up-regulated in the resistance source PI 505,099 after nematode infection. Overall, the SNPs associated with resistance and the genes identified constitute an important tool for introgression of resistance to the root-knot nematode by marker-assisted selection in soybean breeding programs. 650 $aGenome-wide association study 650 $aResistance mechanisms 650 $aRoot-knot nematodes 650 $aSoybeans 650 $aGalha 650 $aGenoma 650 $aMeloidogyne Javanica 650 $aNematóide 650 $aResistência 650 $aSoja 700 1 $aPASSIANOTTO, A. L. de L. 700 1 $aFERREIRA, E. G. C. 700 1 $aSANTOS, A. B. dos 700 1 $aSILVA, D. C. G. da 700 1 $aDIAS, W. P. 700 1 $aBELZILE, F. 700 1 $aABDELNOOR, R. V. 700 1 $aMARCELINO-GUIMARÃES, F. C. 773 $tTheoretical and Applied Genetics$gv. 134, p. 777-792, 2021.
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