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| 9. |  | SILVA, J. C. da; FIEDLER, N. C; JUNIOR, C. S; RIBEIRO, G. A; FELFILI, M. J. Diagnostico das principais causas de incendios florestais em unidades de conservacao do Distrito Federal. In: WORKSHOP SOBRE INCENDIOS FLORESTAIS, 1., 2000, Brasilia, DF. Anais. Brasilia: UnB, 2001. p. 35-41 (Comunicacoes Tecnicas Florestais, v.3, n.2).| Biblioteca(s): Embrapa Cerrados. |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
15/10/2020 |
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Data da última atualização: |
06/07/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
BERNARDINO, K. C.; MENEZES, C. B. de; SOUSA, S. M. de; GUIMARÃES, C. T.; CARNEIRO, P. C. S.; SCHAFFERT, R. E.; KOCHIAN, L. V.; HUFNAGEL, B.; PASTINA, M. M.; MAGALHAES, J. V. de. |
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Afiliação: |
Karine C. Bernardino, Universidade Federal de Viçosa; CICERO BESERRA DE MENEZES, CNPMS; SYLVIA MORAIS DE SOUSA TINOCO, CNPMS; CLAUDIA TEIXEIRA GUIMARAES, CNPMS; Pedro C. S. Carneiro, Universidade Federal de Viçosa; ROBERT EUGENE SCHAFFERT, CNPMS; Leon V. Kochian, University of Saskatchewan; Barbara Hufnagel, University of Montpellier; MARIA MARTA PASTINA, CNPMS; JURANDIR VIEIRA DE MAGALHAES, CNPMS. |
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Título: |
Association mapping and genomic selection for sorghum adaptation to tropical soils of Brazil in a sorghum multiparental random mating population. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Theoretical and Applied Genetics, v. 134, p. 295-312, 2021. |
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DOI: |
https://doi.org/10.1007/s00122-020-03697-8 |
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Idioma: |
Inglês |
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Conteúdo: |
Tropical soils where low phosphorus (P) and aluminum (Al) toxicity limit sorghum [Sorghum bicolor (L.) Moench] production are widespread in the developing world. We report on BRP13R, a multiparental random mating population (MPRMP), which is commonly used in sorghum recurrent selection targeting tropical soil adaptation. Recombination dissipated much of BRP13R?s likely original population structure and average linkage disequilibrium (LD) persisted up to 2.5 Mb, establishing BRP13R as a middle ground between biparental populations and sorghum association panels. Genome-wide association mapping (GWAS) identifed conserved QTL from previous studies, such as for root morphology and grain yield under low-P, and indicated the importance of dominance in the genetic architecture of grain yield. By overlapping consensus QTL regions, we mapped two candidate P efciency genes to a ~5 Mb region on chromosomes 6 (ALMT) and 9 (PHO2). Remarkably, we fnd that only 200 progeny genotyped with~45,000 markers in BRP13R can lead to GWAS-based positional cloning of naturally rare, subpopulation-specifc alleles, such as for SbMATE-conditioned Al tolerance. Genomic selection was found to be useful in such MP-RMP, particularly if markers in LD with major genes are ftted as fxed efects into GBLUP models accommodating dominance. Shifts in allele frequencies in progeny contrasting for grain yield indicated that intermediate to minor-efect genes on P efciency, such as SbPSTOL1 genes, can be employed in pre-breeding via allele mining in the base population. Therefore, MP-RMPs such as BRP13R emerge as multipurpose resources for efcient gene discovery and deployment for breeding sorghum cultivars adapted to tropical soils. MenosTropical soils where low phosphorus (P) and aluminum (Al) toxicity limit sorghum [Sorghum bicolor (L.) Moench] production are widespread in the developing world. We report on BRP13R, a multiparental random mating population (MPRMP), which is commonly used in sorghum recurrent selection targeting tropical soil adaptation. Recombination dissipated much of BRP13R?s likely original population structure and average linkage disequilibrium (LD) persisted up to 2.5 Mb, establishing BRP13R as a middle ground between biparental populations and sorghum association panels. Genome-wide association mapping (GWAS) identifed conserved QTL from previous studies, such as for root morphology and grain yield under low-P, and indicated the importance of dominance in the genetic architecture of grain yield. By overlapping consensus QTL regions, we mapped two candidate P efciency genes to a ~5 Mb region on chromosomes 6 (ALMT) and 9 (PHO2). Remarkably, we fnd that only 200 progeny genotyped with~45,000 markers in BRP13R can lead to GWAS-based positional cloning of naturally rare, subpopulation-specifc alleles, such as for SbMATE-conditioned Al tolerance. Genomic selection was found to be useful in such MP-RMP, particularly if markers in LD with major genes are ftted as fxed efects into GBLUP models accommodating dominance. Shifts in allele frequencies in progeny contrasting for grain yield indicated that intermediate to minor-efect genes on P efciency, such as SbPSTOL1 genes, can be employed in pr... Mostrar Tudo |
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Palavras-Chave: |
Seleção genômica. |
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Thesagro: |
Gene; Genética Vegetal; Melhoramento Genético Vegetal; Sorgo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/223127/1/Association-mapping.pdf
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|
Marc: |
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024 7 $ahttps://doi.org/10.1007/s00122-020-03697-8$2DOI
100 1 $aBERNARDINO, K. C.
245 $aAssociation mapping and genomic selection for sorghum adaptation to tropical soils of Brazil in a sorghum multiparental random mating population.$h[electronic resource]
260 $c2021
520 $aTropical soils where low phosphorus (P) and aluminum (Al) toxicity limit sorghum [Sorghum bicolor (L.) Moench] production are widespread in the developing world. We report on BRP13R, a multiparental random mating population (MPRMP), which is commonly used in sorghum recurrent selection targeting tropical soil adaptation. Recombination dissipated much of BRP13R?s likely original population structure and average linkage disequilibrium (LD) persisted up to 2.5 Mb, establishing BRP13R as a middle ground between biparental populations and sorghum association panels. Genome-wide association mapping (GWAS) identifed conserved QTL from previous studies, such as for root morphology and grain yield under low-P, and indicated the importance of dominance in the genetic architecture of grain yield. By overlapping consensus QTL regions, we mapped two candidate P efciency genes to a ~5 Mb region on chromosomes 6 (ALMT) and 9 (PHO2). Remarkably, we fnd that only 200 progeny genotyped with~45,000 markers in BRP13R can lead to GWAS-based positional cloning of naturally rare, subpopulation-specifc alleles, such as for SbMATE-conditioned Al tolerance. Genomic selection was found to be useful in such MP-RMP, particularly if markers in LD with major genes are ftted as fxed efects into GBLUP models accommodating dominance. Shifts in allele frequencies in progeny contrasting for grain yield indicated that intermediate to minor-efect genes on P efciency, such as SbPSTOL1 genes, can be employed in pre-breeding via allele mining in the base population. Therefore, MP-RMPs such as BRP13R emerge as multipurpose resources for efcient gene discovery and deployment for breeding sorghum cultivars adapted to tropical soils.
650 $aGene
650 $aGenética Vegetal
650 $aMelhoramento Genético Vegetal
650 $aSorgo
653 $aSeleção genômica
700 1 $aMENEZES, C. B. de
700 1 $aSOUSA, S. M. de
700 1 $aGUIMARÃES, C. T.
700 1 $aCARNEIRO, P. C. S.
700 1 $aSCHAFFERT, R. E.
700 1 $aKOCHIAN, L. V.
700 1 $aHUFNAGEL, B.
700 1 $aPASTINA, M. M.
700 1 $aMAGALHAES, J. V. de
773 $tTheoretical and Applied Genetics$gv. 134, p. 295-312, 2021.
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