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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 Amapá. |
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Data corrente: |
01/11/2000 |
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Data da última atualização: |
04/10/2022 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
QUEIROZ, J. A. L. de. |
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Afiliação: |
JOSE ANTONIO LEITE DE QUEIROZ, CPAF-AP. |
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Título: |
Germinação de sementes de bacaba (Oenocarpus bacaba Mart.) nas condições do Estado do Amapá. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Macapá: Embrapa Amapá, 2000. |
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Páginas: |
3 p. |
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Série: |
(Embrapa Amapá. Comunicado técnico, 32). |
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Idioma: |
Português |
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Conteúdo: |
Com o objetivo de avaliar métodos para acelerar a germinação de sementes de bacaba, a Embrapa Amapá conduziu o presente trabalho no Campo Experimental e de Produção de Mudas de Fazendinha. |
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Palavras-Chave: |
Oenocarpus bacaba; Oil palms; Tratamentos; Tropical fruits. |
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Thesagro: |
Bacaba; Fruta Tropical; Germinação; Palmeira Oleaginosa; Semeadura; Semente. |
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Thesaurus NAL: |
germination; seeds. |
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Categoria do assunto: |
--
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/97517/1/CPAF-AP-2000-Sementes-bacaba.pdf
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Marc: |
LEADER 00949nam a2200277 a 4500
001 1345524
005 2022-10-04
008 2000 bl uuuu u0uu1 u #d
100 1 $aQUEIROZ, J. A. L. de
245 $aGerminação de sementes de bacaba (Oenocarpus bacaba Mart.) nas condições do Estado do Amapá.
260 $aMacapá: Embrapa Amapá$c2000
300 $a3 p.
490 $a(Embrapa Amapá. Comunicado técnico, 32).
520 $aCom o objetivo de avaliar métodos para acelerar a germinação de sementes de bacaba, a Embrapa Amapá conduziu o presente trabalho no Campo Experimental e de Produção de Mudas de Fazendinha.
650 $agermination
650 $aseeds
650 $aBacaba
650 $aFruta Tropical
650 $aGerminação
650 $aPalmeira Oleaginosa
650 $aSemeadura
650 $aSemente
653 $aOenocarpus bacaba
653 $aOil palms
653 $aTratamentos
653 $aTropical fruits
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Embrapa Amapá (CPAF-AP) |
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