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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
06/11/2017 |
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Data da última atualização: |
14/12/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BRITO, A. C.; OLIVEIRA, S. A. S. de; OLIVEIRA, E. J. de. |
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Afiliação: |
A. C. BRITO; SAULO ALVES SANTOS DE OLIVEIRA, CNPMF; EDER JORGE DE OLIVEIRA, CNPMF. |
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Título: |
Genome-wide association study for resistance to cassava root rot. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Agricultural Science, p.1 of 18, 2017. |
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DOI: |
10.1017/S0021859617000612 |
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Idioma: |
Inglês |
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Conteúdo: |
Cassava root rot (CRR) disease associated with a complex of soil pathogens has caused great yield losses in the crop. The objective of the current work was to obtain insights about the genetic architecture of CRR resistance caused by Fusarium (dry root rot ? DRR), Phytophthora (soft root rot ? SRR) and Botryosphaeriaceae (black root rot ? BRR) species, using genome-wide association studies (GWAS). Phenotyping data of 263 accessions (artificial inoculation) and 14 094 single-nucleotide polymorphisms (SNP) (missing data <0·10 and minor allele frequency >0·05) were used. The severity of CRR in peel and pulp was variable among accessions, but the pathogens that caused DRR were more aggressive. Broad-sense heritability (h2g ) was of medium magnitude for all groups of resistances for pathogens, with variation from 0·16 ± 0·019 (Fspp Pulp) to 0·31 ± 0·028 (Fspp Peel). The kinship matrix was used to correct for stratification as well as for clustering the accessions. Overall, this analysis showed that there was no relationship between agronomic traits and resistance to CRR and the four clusters obtained from kinship matrix. The GWAS identified 38 significant SNPs, of which eight and 22 are related to the severity of DRR in the pulp and peel, respectively. The other eight SNPs were associated with SRR-peel (1), SRR-pulp (1), BRR-peel (3) and BRR-pulp (3). Half of the SNPs associated with CRR resistance have functional annotations related to defence and response to pathogen attack as well as general cellular processes. The current study revealed that resistance to CRR is controlled by multiple loci with small effects, and significant SNPs can be used to identify putative genes that control these traits. MenosCassava root rot (CRR) disease associated with a complex of soil pathogens has caused great yield losses in the crop. The objective of the current work was to obtain insights about the genetic architecture of CRR resistance caused by Fusarium (dry root rot ? DRR), Phytophthora (soft root rot ? SRR) and Botryosphaeriaceae (black root rot ? BRR) species, using genome-wide association studies (GWAS). Phenotyping data of 263 accessions (artificial inoculation) and 14 094 single-nucleotide polymorphisms (SNP) (missing data <0·10 and minor allele frequency >0·05) were used. The severity of CRR in peel and pulp was variable among accessions, but the pathogens that caused DRR were more aggressive. Broad-sense heritability (h2g ) was of medium magnitude for all groups of resistances for pathogens, with variation from 0·16 ± 0·019 (Fspp Pulp) to 0·31 ± 0·028 (Fspp Peel). The kinship matrix was used to correct for stratification as well as for clustering the accessions. Overall, this analysis showed that there was no relationship between agronomic traits and resistance to CRR and the four clusters obtained from kinship matrix. The GWAS identified 38 significant SNPs, of which eight and 22 are related to the severity of DRR in the pulp and peel, respectively. The other eight SNPs were associated with SRR-peel (1), SRR-pulp (1), BRR-peel (3) and BRR-pulp (3). Half of the SNPs associated with CRR resistance have functional annotations related to defence and response to pathogen attack as ... Mostrar Tudo |
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Thesagro: |
Mandioca. |
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Thesaurus Nal: |
Cassava. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02263naa a2200181 a 4500
001 2078883
005 2017-12-14
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1017/S0021859617000612$2DOI
100 1 $aBRITO, A. C.
245 $aGenome-wide association study for resistance to cassava root rot.$h[electronic resource]
260 $c2017
520 $aCassava root rot (CRR) disease associated with a complex of soil pathogens has caused great yield losses in the crop. The objective of the current work was to obtain insights about the genetic architecture of CRR resistance caused by Fusarium (dry root rot ? DRR), Phytophthora (soft root rot ? SRR) and Botryosphaeriaceae (black root rot ? BRR) species, using genome-wide association studies (GWAS). Phenotyping data of 263 accessions (artificial inoculation) and 14 094 single-nucleotide polymorphisms (SNP) (missing data <0·10 and minor allele frequency >0·05) were used. The severity of CRR in peel and pulp was variable among accessions, but the pathogens that caused DRR were more aggressive. Broad-sense heritability (h2g ) was of medium magnitude for all groups of resistances for pathogens, with variation from 0·16 ± 0·019 (Fspp Pulp) to 0·31 ± 0·028 (Fspp Peel). The kinship matrix was used to correct for stratification as well as for clustering the accessions. Overall, this analysis showed that there was no relationship between agronomic traits and resistance to CRR and the four clusters obtained from kinship matrix. The GWAS identified 38 significant SNPs, of which eight and 22 are related to the severity of DRR in the pulp and peel, respectively. The other eight SNPs were associated with SRR-peel (1), SRR-pulp (1), BRR-peel (3) and BRR-pulp (3). Half of the SNPs associated with CRR resistance have functional annotations related to defence and response to pathogen attack as well as general cellular processes. The current study revealed that resistance to CRR is controlled by multiple loci with small effects, and significant SNPs can be used to identify putative genes that control these traits.
650 $aCassava
650 $aMandioca
700 1 $aOLIVEIRA, S. A. S. de
700 1 $aOLIVEIRA, E. J. de
773 $tJournal of Agricultural Science, p.1 of 18, 2017.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
29/09/2009 |
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Data da última atualização: |
11/03/2010 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
FREIRE, R. M. M.; CARVALHO, L. P. de; SILVA, C. M.; LIMA, M. M. de A.; SANTOS, J. W. dos; FIRMINO, P. de T. |
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Afiliação: |
ROSA MARIA MENDES FREIRE, CNPA; LUIZ PAULO DE CARVALHO, CNPA; Camila Macedo Silva, UEPB; Marleide Magalhães de Andrade Lima, CNPA; José Wellington dos Santos, CNPA; Paulo de Tarso Firmino, CNPA. |
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Título: |
Avaliação de novos genótipos de algodão colorido quanto ao teor de óleo na semente. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DO ALGODÃO, 7., 2009, Foz do Iguaçu. Sustentabilidade da cotonicultura brasileira e expansão dos mercados: anais. Campina Grande: Embrapa Algodão, 2009. |
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Descrição Física: |
1 CD-ROM |
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ISSN: |
2175-2311 |
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Idioma: |
Português |
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Palavras-Chave: |
Rendimento de óleo. |
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Thesagro: |
Gossypium Hirsutum. |
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Thesaurus NAL: |
biodiesel. |
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Categoria do assunto: |
-- |
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URL: |
https://www.cnpa.embrapa.br/produtos/algodao/publicacoes/cba7/TRABALHO_44.pdf
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Marc: |
LEADER 00793naa a2200229 a 4500
001 1512554
005 2010-03-11
008 2009 bl uuuu u00u1 u #d
022 $a2175-2311
100 1 $aFREIRE, R. M. M.
245 $aAvaliação de novos genótipos de algodão colorido quanto ao teor de óleo na semente.
260 $c2009
300 $c1 CD-ROM
650 $abiodiesel
650 $aGossypium Hirsutum
653 $aRendimento de óleo
700 1 $aCARVALHO, L. P. de
700 1 $aSILVA, C. M.
700 1 $aLIMA, M. M. de A.
700 1 $aSANTOS, J. W. dos
700 1 $aFIRMINO, P. de T.
773 $tIn: CONGRESSO BRASILEIRO DO ALGODÃO, 7., 2009, Foz do Iguaçu. Sustentabilidade da cotonicultura brasileira e expansão dos mercados: anais. Campina Grande: Embrapa Algodão, 2009.
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Embrapa Algodão (CNPA) |
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