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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
11/09/2020 |
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Data da última atualização: |
25/02/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GODDARD, R.; STEED, A.; CHINOY, C.; FERREIRA, J. R.; SCHEEREN, P. L.; MACIEL, J. L. N.; CAIERAO, E.; TORRES, G. A. M.; CONSOLI, L.; SANTANA, F. M.; FERNANDES, J. M. C.; SIMMONDS, J.; UAUY, C.; COCKRAM, J.; NICHOLSON, P. |
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Afiliação: |
RACHEL R. GODDARD, Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK; ANDREW STEED, Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK; CATHERINE CHINOY, Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK; JÉSSICA ROSSET FERREIRA, Universidade de Passo Fundo, Passo Fundo, RS, Brazil; PEDRO LUIZ SCHEEREN, CNPT; JOAO LEODATO NUNES MACIEL, CNPT; EDUARDO CAIERAO, CNPT; GISELE ABIGAIL MONTAN TORRES, CNPT; LUCIANO CONSOLI, CNPT; FLAVIO MARTINS SANTANA, CNPT; JOSE MAURICIO CUNHA FERNANDES, CNPT; James Simmonds, Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK; CRISTOBAL UAUY, Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK; James Cockram, John Bingham Laboratory, NIAB, Cambridge, UK; Paul Nicholson, Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK. |
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Título: |
Dissecting the genetic basis of wheat blast resistance in the Brazilian wheat cultivar BR 18-Terena. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
BMC Plant Biology, v. 20, n. 398, Aug. 2020. |
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DOI: |
https://doi.org/10.1186/s12870-020-02592-0 |
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Idioma: |
Inglês |
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Conteúdo: |
Background: Wheat blast, caused by Magnaporthe oryzae Triticum (MoT) pathotype, is a global threat to wheat (Triticum aestivum L.) production. Few blast resistance (R) genes have been identified to date, therefore assessing potential sources of resistance in wheat is important. The Brazilian wheat cultivar BR 18-Terena is considered one of the best sources of resistance to blast and has been widely used in Brazilian breeding programmes, however the underlying genetics of this resistance are unknown. Results: BR 18-Terena was used as the common parent in the development of two recombinant inbred line (RIL) F6 populations with the Brazilian cultivars Anahuac 75 and BRS 179. Populations were phenotyped for resistance at the seedling and heading stage using the sequenced MoT isolate BR32, with transgressive segregation being observed. Genetic maps containing 1779 and 1318 markers, were produced for the Anahuac 75 × BR 18-Terena and BR 18- Terena × BRS 179 populations, respectively. Five quantitative trait loci (QTL) associated with seedling resistance, on chromosomes 2B, 4B (2 QTL), 5A and 6A, were identified, as were four QTL associated with heading stage resistance (1A, 2B, 4A and 5A). Seedling and heading stage QTL did not co-locate, despite a significant positive correlation between these traits, indicating that resistance at these developmental stages is likely to be controlled by different genes. BR 18-Terena provided the resistant allele for six QTL, at both developmental stages, with the largest phenotypic effect conferred by a QTL being 24.8% suggesting that BR 18-Terena possesses quantitative resistance. Haplotype analysis of 100 Brazilian wheat cultivars indicates that 11.0% of cultivars already possess a BR 18-Terenalike haplotype for more than one of the identified heading stage QTL. Conclusions: This study suggests that BR 18-Terena possesses quantitative resistance to wheat blast, with nine QTL associated with resistance at either the seedling or heading stage being detected. Wheat blast resistance is also largely tissue-specific. Identification of durable quantitative resistances which can be combined with race-specific R gene-mediated resistance is critical to effectively control wheat blast. Collectively, this work facilitates markerassisted selection to develop new varieties for cultivation in regions at risk from this emerging disease. MenosBackground: Wheat blast, caused by Magnaporthe oryzae Triticum (MoT) pathotype, is a global threat to wheat (Triticum aestivum L.) production. Few blast resistance (R) genes have been identified to date, therefore assessing potential sources of resistance in wheat is important. The Brazilian wheat cultivar BR 18-Terena is considered one of the best sources of resistance to blast and has been widely used in Brazilian breeding programmes, however the underlying genetics of this resistance are unknown. Results: BR 18-Terena was used as the common parent in the development of two recombinant inbred line (RIL) F6 populations with the Brazilian cultivars Anahuac 75 and BRS 179. Populations were phenotyped for resistance at the seedling and heading stage using the sequenced MoT isolate BR32, with transgressive segregation being observed. Genetic maps containing 1779 and 1318 markers, were produced for the Anahuac 75 × BR 18-Terena and BR 18- Terena × BRS 179 populations, respectively. Five quantitative trait loci (QTL) associated with seedling resistance, on chromosomes 2B, 4B (2 QTL), 5A and 6A, were identified, as were four QTL associated with heading stage resistance (1A, 2B, 4A and 5A). Seedling and heading stage QTL did not co-locate, despite a significant positive correlation between these traits, indicating that resistance at these developmental stages is likely to be controlled by different genes. BR 18-Terena provided the resistant allele for six QTL, at both developmental... Mostrar Tudo |
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Palavras-Chave: |
Head resistance; Seedling resistance; Single nucleotide polymorphism (SNP) genotyping; Wheat blast. |
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Thesagro: |
Triticum Aestivum. |
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Thesaurus Nal: |
Genotyping; Magnaporthe oryzae; Quantitative trait loci. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/215901/1/s12870-020-02592-0.pdf
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Marc: |
LEADER 03562naa a2200397 a 4500
001 2124870
005 2021-02-25
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1186/s12870-020-02592-0$2DOI
100 1 $aGODDARD, R.
245 $aDissecting the genetic basis of wheat blast resistance in the Brazilian wheat cultivar BR 18-Terena.$h[electronic resource]
260 $c2020
520 $aBackground: Wheat blast, caused by Magnaporthe oryzae Triticum (MoT) pathotype, is a global threat to wheat (Triticum aestivum L.) production. Few blast resistance (R) genes have been identified to date, therefore assessing potential sources of resistance in wheat is important. The Brazilian wheat cultivar BR 18-Terena is considered one of the best sources of resistance to blast and has been widely used in Brazilian breeding programmes, however the underlying genetics of this resistance are unknown. Results: BR 18-Terena was used as the common parent in the development of two recombinant inbred line (RIL) F6 populations with the Brazilian cultivars Anahuac 75 and BRS 179. Populations were phenotyped for resistance at the seedling and heading stage using the sequenced MoT isolate BR32, with transgressive segregation being observed. Genetic maps containing 1779 and 1318 markers, were produced for the Anahuac 75 × BR 18-Terena and BR 18- Terena × BRS 179 populations, respectively. Five quantitative trait loci (QTL) associated with seedling resistance, on chromosomes 2B, 4B (2 QTL), 5A and 6A, were identified, as were four QTL associated with heading stage resistance (1A, 2B, 4A and 5A). Seedling and heading stage QTL did not co-locate, despite a significant positive correlation between these traits, indicating that resistance at these developmental stages is likely to be controlled by different genes. BR 18-Terena provided the resistant allele for six QTL, at both developmental stages, with the largest phenotypic effect conferred by a QTL being 24.8% suggesting that BR 18-Terena possesses quantitative resistance. Haplotype analysis of 100 Brazilian wheat cultivars indicates that 11.0% of cultivars already possess a BR 18-Terenalike haplotype for more than one of the identified heading stage QTL. Conclusions: This study suggests that BR 18-Terena possesses quantitative resistance to wheat blast, with nine QTL associated with resistance at either the seedling or heading stage being detected. Wheat blast resistance is also largely tissue-specific. Identification of durable quantitative resistances which can be combined with race-specific R gene-mediated resistance is critical to effectively control wheat blast. Collectively, this work facilitates markerassisted selection to develop new varieties for cultivation in regions at risk from this emerging disease.
650 $aGenotyping
650 $aMagnaporthe oryzae
650 $aQuantitative trait loci
650 $aTriticum Aestivum
653 $aHead resistance
653 $aSeedling resistance
653 $aSingle nucleotide polymorphism (SNP) genotyping
653 $aWheat blast
700 1 $aSTEED, A.
700 1 $aCHINOY, C.
700 1 $aFERREIRA, J. R.
700 1 $aSCHEEREN, P. L.
700 1 $aMACIEL, J. L. N.
700 1 $aCAIERAO, E.
700 1 $aTORRES, G. A. M.
700 1 $aCONSOLI, L.
700 1 $aSANTANA, F. M.
700 1 $aFERNANDES, J. M. C.
700 1 $aSIMMONDS, J.
700 1 $aUAUY, C.
700 1 $aCOCKRAM, J.
700 1 $aNICHOLSON, P.
773 $tBMC Plant Biology$gv. 20, n. 398, Aug. 2020.
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Registro original: |
Embrapa Trigo (CNPT) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
21/12/2010 |
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Data da última atualização: |
25/05/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
OLIVEIRA, C. E. de; PELLEGRIN, A. O.; TOMAS, W. M.; SOARES, C. O.; ARAUJO, F. R.; FUNES-HUACCA, M. E.; ROSINHA, G. M. S. |
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Afiliação: |
CARINA ELISEI DE OLIVEIRA, BOLSISTA - EMBRAPA GADO DE CORTE; AIESCA OLIVEIRA PELLEGRIN, CPAP; WALFRIDO MORAES TOMAS, CPAP; CLEBER OLIVEIRA SOARES, CNPGC; FLABIO RIBEIRO DE ARAUJO, CNPGC; MARIBEL E. FUNES-HUACCA, BOLSISTA - EMBRAPA GADO DE CORTE; GRACIA MARIA SOARES ROSINHA, CNPGC. |
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Título: |
Evidência molecular de Brucella sp. em Ozotoceros bezoarticus (veado campeiro) do Pantanal Sul-Mato-Grossense. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, v. 30, n. 6, p. 503-509, jun. 2010. |
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Idioma: |
Português |
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Notas: |
Na publicação: Carina Elisei, Aiesca Pellegrin. |
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Conteúdo: |
A presença de Brucella spp. entre animais silvestres pode influenciar a taxa de reprodução destes hospedeiros, além de atuarem como fonte de infecção natural para os animais domésticos e humanos. O objetivo deste estudo foi identificar a presença de Brucella spp. em 44 amostras de sangue de veado campeiro (Ozotoceros bezoarticus) do Pantanal do Sul-Mato-Grossense, utilizando a técnica de PCR. Observou-se que 20,4% (9/44) das amostras foram positivas. A sequência consenso de nucleotídeo obtida no sequenciamento do isolado de veado campeiro apresentou 514 pb e 95% de identidade com virB5 de B. abortus (best hits acesso nr AF226278, e-value 0.0), já na análise filogenética a amostra de Brucella isolada de veado campeiro apresentou-se muito próximo de B. suis. A alta porcentagem de amostras positivas sugere que a brucelose pode ser um problema entre os veados campeiros na área estudada e que estes animais podem representar riscos para outros animais domésticos e silvestres. |
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Thesagro: |
Brucella; Brucelose; Hospedeiro Animal; Ozotoceros Bezoarticus; Sanidade Animal; Veado Campeiro. |
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Thesaurus NAL: |
Animal health; Pantanal; Wild animals. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/870664/1/Evidencia-molecular-Brucella-sp.-2010.pdf
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Marc: |
LEADER 01939naa a2200313 a 4500
001 1870664
005 2023-05-25
008 2010 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, C. E. de
245 $aEvidência molecular de Brucella sp. em Ozotoceros bezoarticus (veado campeiro) do Pantanal Sul-Mato-Grossense.
260 $c2010
500 $aNa publicação: Carina Elisei, Aiesca Pellegrin.
520 $aA presença de Brucella spp. entre animais silvestres pode influenciar a taxa de reprodução destes hospedeiros, além de atuarem como fonte de infecção natural para os animais domésticos e humanos. O objetivo deste estudo foi identificar a presença de Brucella spp. em 44 amostras de sangue de veado campeiro (Ozotoceros bezoarticus) do Pantanal do Sul-Mato-Grossense, utilizando a técnica de PCR. Observou-se que 20,4% (9/44) das amostras foram positivas. A sequência consenso de nucleotídeo obtida no sequenciamento do isolado de veado campeiro apresentou 514 pb e 95% de identidade com virB5 de B. abortus (best hits acesso nr AF226278, e-value 0.0), já na análise filogenética a amostra de Brucella isolada de veado campeiro apresentou-se muito próximo de B. suis. A alta porcentagem de amostras positivas sugere que a brucelose pode ser um problema entre os veados campeiros na área estudada e que estes animais podem representar riscos para outros animais domésticos e silvestres.
650 $aAnimal health
650 $aPantanal
650 $aWild animals
650 $aBrucella
650 $aBrucelose
650 $aHospedeiro Animal
650 $aOzotoceros Bezoarticus
650 $aSanidade Animal
650 $aVeado Campeiro
700 1 $aPELLEGRIN, A. O.
700 1 $aTOMAS, W. M.
700 1 $aSOARES, C. O.
700 1 $aARAUJO, F. R.
700 1 $aFUNES-HUACCA, M. E.
700 1 $aROSINHA, G. M. S.
773 $tPesquisa Veterinária Brasileira$gv. 30, n. 6, p. 503-509, jun. 2010.
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