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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
10/01/2010 |
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Data da última atualização: |
27/09/2013 |
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Autoria: |
WILLIAM, H. M.; SINGH, R. P.; HUERTA-ESPINO, J.; PALACIOS, G.; SUENAGA, K. |
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Título: |
Characterization of genetic loci conferring adult plant resistance to leaf rust stripe rust in spring wheat. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Genome, v. 49, n. 8, p. 977-990, 2006. |
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Idioma: |
Inglês |
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Conteúdo: |
Leaf (brown) and stripe (yellow) rusts, caused by Puccinia triticina and Puccinia striiformis, respectively, are fungal diseases of wheat (Triticum aestivum) that cause significant yield losses annually in many wheat-growing regions of the world. The objectives of our study were to characterize genetic loci associated with resistance to leaf and stripe rusts using molecular markers in a population derived from a cross between the rust-susceptible cultivar 'Avocet S' and the resistant cultivar 'Pavon76'. Using bulked segregant analysis and partial linkage mapping with AFLPs, SSRs and RFLPs, we identified 6 independent loci that contributed to slow rusting or adult plant resistance (APR) to the 2 rust diseases. Using marker information available from existing linkage maps, we have identified additional markers associated with resistance to these 2 diseases and established several linkage groups in the 'Avocet S' x 'Pavon76' population. The putative loci identified on chromosomes 1BL, 4BL, and 6AL influenced resistance to both stripe and leaf rust. The loci on chromosomes 3BS and 6BL had significant effects only on stripe rust, whereas another locus, characterized by AFLP markers, had minor effects on leaf rust only. Data derived from Interval mapping indicated that the loci identified explained 53% of the total phenotypic variation (R2) for stripe rust and 57% for leaf rust averaged across 3 sets of field data. A single chromosome recombinant line population segregating for chromosome 1B was used to map Lr46/Yr29 as a single Mendelian locus. Characterization of slow-rusting genes for leaf and stripe rust in improved wheat germplasm would enable wheat breeders to combine these additional loci with known slow-rusting loci to generate wheat cultivars with higher levels of slow-rusting resistance. MenosLeaf (brown) and stripe (yellow) rusts, caused by Puccinia triticina and Puccinia striiformis, respectively, are fungal diseases of wheat (Triticum aestivum) that cause significant yield losses annually in many wheat-growing regions of the world. The objectives of our study were to characterize genetic loci associated with resistance to leaf and stripe rusts using molecular markers in a population derived from a cross between the rust-susceptible cultivar 'Avocet S' and the resistant cultivar 'Pavon76'. Using bulked segregant analysis and partial linkage mapping with AFLPs, SSRs and RFLPs, we identified 6 independent loci that contributed to slow rusting or adult plant resistance (APR) to the 2 rust diseases. Using marker information available from existing linkage maps, we have identified additional markers associated with resistance to these 2 diseases and established several linkage groups in the 'Avocet S' x 'Pavon76' population. The putative loci identified on chromosomes 1BL, 4BL, and 6AL influenced resistance to both stripe and leaf rust. The loci on chromosomes 3BS and 6BL had significant effects only on stripe rust, whereas another locus, characterized by AFLP markers, had minor effects on leaf rust only. Data derived from Interval mapping indicated that the loci identified explained 53% of the total phenotypic variation (R2) for stripe rust and 57% for leaf rust averaged across 3 sets of field data. A single chromosome recombinant line population segregating for ch... Mostrar Tudo |
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Thesagro: |
Doença; Ferrugem; Trigo. |
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Categoria do assunto: |
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Marc: |
LEADER 02384naa a2200205 a 4500
001 1841042
005 2013-09-27
008 2006 bl --- 0-- u #d
100 1 $aWILLIAM, H. M.
245 $aCharacterization of genetic loci conferring adult plant resistance to leaf rust stripe rust in spring wheat.
260 $c2006
520 $aLeaf (brown) and stripe (yellow) rusts, caused by Puccinia triticina and Puccinia striiformis, respectively, are fungal diseases of wheat (Triticum aestivum) that cause significant yield losses annually in many wheat-growing regions of the world. The objectives of our study were to characterize genetic loci associated with resistance to leaf and stripe rusts using molecular markers in a population derived from a cross between the rust-susceptible cultivar 'Avocet S' and the resistant cultivar 'Pavon76'. Using bulked segregant analysis and partial linkage mapping with AFLPs, SSRs and RFLPs, we identified 6 independent loci that contributed to slow rusting or adult plant resistance (APR) to the 2 rust diseases. Using marker information available from existing linkage maps, we have identified additional markers associated with resistance to these 2 diseases and established several linkage groups in the 'Avocet S' x 'Pavon76' population. The putative loci identified on chromosomes 1BL, 4BL, and 6AL influenced resistance to both stripe and leaf rust. The loci on chromosomes 3BS and 6BL had significant effects only on stripe rust, whereas another locus, characterized by AFLP markers, had minor effects on leaf rust only. Data derived from Interval mapping indicated that the loci identified explained 53% of the total phenotypic variation (R2) for stripe rust and 57% for leaf rust averaged across 3 sets of field data. A single chromosome recombinant line population segregating for chromosome 1B was used to map Lr46/Yr29 as a single Mendelian locus. Characterization of slow-rusting genes for leaf and stripe rust in improved wheat germplasm would enable wheat breeders to combine these additional loci with known slow-rusting loci to generate wheat cultivars with higher levels of slow-rusting resistance.
650 $aDoença
650 $aFerrugem
650 $aTrigo
700 1 $aSINGH, R. P.
700 1 $aHUERTA-ESPINO, J.
700 1 $aPALACIOS, G.
700 1 $aSUENAGA, K.
773 $tGenome$gv. 49, n. 8, p. 977-990, 2006.
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Registro original: |
Embrapa Trigo (CNPT) |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
11/12/2014 |
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Data da última atualização: |
11/12/2014 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
QUEIROZ, A. P. de; ALMEIDA, F. F. de; SOARES, F. M.; SALOMAO, A. N. |
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Afiliação: |
ANA PAULA DE QUEIROZ, CENARGEN; FLAVIA FRANCISCA DE ALMEIDA, FACULDADE ANHANGUERA DE BRASÍLIA; FERNANDA MARINS SOARES, FACULDADE ANHANGUERA DE BRASÍLIA; ANTONIETA NASSIF SALOMAO, CENARGEN. |
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Título: |
Germinabilidade e viabilidade de sementes de quatro acessos de Arachis pintoi Krapov. & W. C. Gregoty - Fabaceae . |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
In. CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 3., 2014, Santos. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2014. Resumo. 452. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Palavras-Chave: |
Amendoim forrageiro; Germinabilidade; Viabilidade. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/113552/1/ResumoCBRG-452.pdf
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Marc: |
LEADER 00681nam a2200181 a 4500
001 2002296
005 2014-12-11
008 2014 bl uuuu u00u1 u #d
100 1 $aQUEIROZ, A. P. de
245 $aGerminabilidade e viabilidade de sementes de quatro acessos de Arachis pintoi Krapov. & W. C. Gregoty - Fabaceae .
260 $aIn. CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 3., 2014, Santos. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2014. Resumo. 452.$c2014
300 $c1 CD-ROM.
653 $aAmendoim forrageiro
653 $aGerminabilidade
653 $aViabilidade
700 1 $aALMEIDA, F. F. de
700 1 $aSOARES, F. M.
700 1 $aSALOMAO, A. N.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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