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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura; Embrapa Semiárido. |
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Data corrente: |
03/12/2021 |
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Data da última atualização: |
03/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, P. P. dos S.; SOUSA, M. B. e; OLIVEIRA, E. J. de; MORGANTE, C. V.; OLIVEIRA, C. R. S. de; VIEIRA, S. L.; BOREL, J. C. |
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Afiliação: |
PRISCILA PATRÍCIA DOS SANTOS SILVA, UFRB; MASSAINE BANDEIRA E SOUSA; EDER JORGE DE OLIVEIRA, CNPMF; CAROLINA VIANNA MORGANTE, CPATSA; CARLOS ROBERTO SILVA DE OLIVEIRA, UNIVASF; SIMONE LEAL VIEIRA; JERÔNIMO CONSTANTINO BOREL. |
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Título: |
Genome-wide association study of drought tolerance in cassava. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Euphytica, v.217, n.60, 2021. |
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ISSN: |
1573-5060 |
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DOI: |
https://doi.org/10.1007/s10681-021-02800-4 |
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Idioma: |
Inglês |
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Conteúdo: |
Despite being considered a drought-tolerant species, cassava (Manihot esculenta Crantz) exhibits reduced growth and productivity under prolonged water stress. Therefore, the objective of this study was to identify the genomic regions associated with water deficit in cassava using a genome-wide association study (GWAS). A total of 49 cassava genotypes were evaluated under two water conditions: irrigated (control) and water deficit. An additional set of 252 clones grown for several years under water deficit conditions were used to validate the GWAS. The following traits were evaluated: yields of storage roots (RoY), shoots (ShY), and starch (StY); root dry matter content (DMC); drought tolerance index (DTI) and drought tolerance stability index (DTSI). The GWAS was performed using a multiple mixed linear model with a kinship matrix and population structure for each trait and water condition. Broad-sense heritability (\({h}^{2}\)) estimates were variable depending on the water conditions and characteristics under analysis. Overall, 62 single nucleotide polymorphisms (SNPs) were identified across all 18 cassava chromosomes. Additionally, it was possible to identify specific and stable markers across environments. The identified SNPs comprise approximately 160 transcripts, of which 119 were previously described and 41 have known functional annotations. Some of these transcripts are related to proteins involved in drought tolerance, such as APETALA 2 domain (AP2), photosystem II oxygen-evolving enhancer protein, PR5-like receptor kinase-related, beta-fructofuranosidase/saccharase, leucine zipper, and bZIP transcription factor. There is great potential for applying these SNPs in the marker-assisted selection of new cassava varieties that are tolerant of water deficit. MenosDespite being considered a drought-tolerant species, cassava (Manihot esculenta Crantz) exhibits reduced growth and productivity under prolonged water stress. Therefore, the objective of this study was to identify the genomic regions associated with water deficit in cassava using a genome-wide association study (GWAS). A total of 49 cassava genotypes were evaluated under two water conditions: irrigated (control) and water deficit. An additional set of 252 clones grown for several years under water deficit conditions were used to validate the GWAS. The following traits were evaluated: yields of storage roots (RoY), shoots (ShY), and starch (StY); root dry matter content (DMC); drought tolerance index (DTI) and drought tolerance stability index (DTSI). The GWAS was performed using a multiple mixed linear model with a kinship matrix and population structure for each trait and water condition. Broad-sense heritability (\({h}^{2}\)) estimates were variable depending on the water conditions and characteristics under analysis. Overall, 62 single nucleotide polymorphisms (SNPs) were identified across all 18 cassava chromosomes. Additionally, it was possible to identify specific and stable markers across environments. The identified SNPs comprise approximately 160 transcripts, of which 119 were previously described and 41 have known functional annotations. Some of these transcripts are related to proteins involved in drought tolerance, such as APETALA 2 domain (AP2), photosystem II o... Mostrar Tudo |
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Palavras-Chave: |
Mandioca resistente a seca; SNP. |
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Thesagro: |
Mandioca; Manihot Esculenta; Melhoramento Genético Vegetal; Resistência a Seca. |
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Thesaurus Nal: |
Drought tolerance; Genomics; Genotype; Manihot; Yield mapping. |
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Categoria do assunto: |
--
G Melhoramento Genético |
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Marc: |
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001 2137039
005 2021-12-03
008 2021 bl uuuu u00u1 u #d
022 $a1573-5060
024 7 $ahttps://doi.org/10.1007/s10681-021-02800-4$2DOI
100 1 $aSILVA, P. P. dos S.
245 $aGenome-wide association study of drought tolerance in cassava.$h[electronic resource]
260 $c2021
520 $aDespite being considered a drought-tolerant species, cassava (Manihot esculenta Crantz) exhibits reduced growth and productivity under prolonged water stress. Therefore, the objective of this study was to identify the genomic regions associated with water deficit in cassava using a genome-wide association study (GWAS). A total of 49 cassava genotypes were evaluated under two water conditions: irrigated (control) and water deficit. An additional set of 252 clones grown for several years under water deficit conditions were used to validate the GWAS. The following traits were evaluated: yields of storage roots (RoY), shoots (ShY), and starch (StY); root dry matter content (DMC); drought tolerance index (DTI) and drought tolerance stability index (DTSI). The GWAS was performed using a multiple mixed linear model with a kinship matrix and population structure for each trait and water condition. Broad-sense heritability (\({h}^{2}\)) estimates were variable depending on the water conditions and characteristics under analysis. Overall, 62 single nucleotide polymorphisms (SNPs) were identified across all 18 cassava chromosomes. Additionally, it was possible to identify specific and stable markers across environments. The identified SNPs comprise approximately 160 transcripts, of which 119 were previously described and 41 have known functional annotations. Some of these transcripts are related to proteins involved in drought tolerance, such as APETALA 2 domain (AP2), photosystem II oxygen-evolving enhancer protein, PR5-like receptor kinase-related, beta-fructofuranosidase/saccharase, leucine zipper, and bZIP transcription factor. There is great potential for applying these SNPs in the marker-assisted selection of new cassava varieties that are tolerant of water deficit.
650 $aDrought tolerance
650 $aGenomics
650 $aGenotype
650 $aManihot
650 $aYield mapping
650 $aMandioca
650 $aManihot Esculenta
650 $aMelhoramento Genético Vegetal
650 $aResistência a Seca
653 $aMandioca resistente a seca
653 $aSNP
700 1 $aSOUSA, M. B. e
700 1 $aOLIVEIRA, E. J. de
700 1 $aMORGANTE, C. V.
700 1 $aOLIVEIRA, C. R. S. de
700 1 $aVIEIRA, S. L.
700 1 $aBOREL, J. C.
773 $tEuphytica$gv.217, n.60, 2021.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| 2. |  | CRUZ NETO, A. J. da; SILVA, R. D. O.; ABREU, E. F. M.; BARBOSA, L. V.; OLIVEIRA, A. M. G.; ANDRADE, E. C. de; BARBOSA, C. de J. Hospedeiros alternativos para os agentes do complexo da meleira do mamoeiro. In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 13., 2019. Foco e valor : resumos. Cruz das Almas, BA: Embrapa Mandioca e Fruticultura,2019. 119 p. il.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 2 | |
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