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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
09/10/2014 |
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Data da última atualização: |
27/09/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
HUFNAGEL, B.; SOUSA, S. M. de; ASSIS, L.; GUIMARAES, C. T.; LEISER, W.; AZEVEDO, G. C.; NEGRI, B.; LARSON, B. G.; SHAFF, J. E.; PASTINA, M. M.; BARROS, B. A.; WELTZIEN, E.; RATTUNDE, H. F. W.; VIANA, J. H.; CLARK, R. T.; FALCÃO, A.; GAZAFFI, R.; GARCIA, A. A. F.; SCHAFFERT, R. E.; KOCHIAN, L. V.; MAGALHAES, J. V. |
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Afiliação: |
SYLVIA MORAIS DE SOUSA TINOCO, CNPMS; CLAUDIA TEIXEIRA GUIMARAES, CNPMS; MARIA MARTA PASTINA, CNPMS; BEATRIZ DE ALMEIDA BARROS, CNPMS; ROBERT EUGENE SCHAFFERT, CNPMS; JURANDIR VIEIRA DE MAGALHAES, CNPMS. |
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Título: |
Duplicate and conquer: multiple homologs of PHOSPHORUS-STARVATION TOLERANCE1 enhance phosphorus acquisition and sorghum performance on low-phosphorus soils. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Plant Physiology, Bethesda, v. 166, p. 659-677, Oct. 2014. |
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DOI: |
10.1104/pp.114.243949 |
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Idioma: |
Português |
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Conteúdo: |
Low soil phosphorus (P) availability is a major constraint for crop production in tropical regions. The rice (Oryza sativa) proteinkinase,PHOSPHORUS-STARVATION TOLERANCE1 (OsPSTOL1), was previously shown to enhance P acquisition and grain yield in rice under P deficiency. We investigated the role of homologs of OsPSTOL1 in sorghum (Sorghum bicolor) performance under low P. Association mapping was undertaken in two sorghum association panels phenotyped for P uptake, root system morphology and architecture in hydroponics and grain yield and biomass accumulation under low-P conditions, in Brazil and/or in Mali. Root length and root surface area were positively correlated with grain yield under low P in the soil, emphasizing the importance of P acquisition efficiency in sorghum adaptation to low-P availability. SbPSTOL1 alleles reducing root diameter were associated with enhanced P uptake under low P in hydroponics, whereas Sb03g006765 and Sb03g0031680 alleles increasing root surface area also increased grain yield in a low-P soil. SbPSTOL1 genes colocalized with quantitative trait loci for traits underlying root morphology and dry weight accumulation under low P via linkage mapping. Consistent allelic effects for enhanced sorghum performance under low P between association panels, including enhanced grain yield under low P in the soil in Brazil, point toward a relatively stable role for Sb03g006765 across genetic backgrounds and environmental conditions. This study indicates that multiple SbPSTOL1 genes have a more general role in the root system, not only enhancing root morphology traits but also changing root system architecture, which leads to grain yield gain under low-P availability in the soil. MenosLow soil phosphorus (P) availability is a major constraint for crop production in tropical regions. The rice (Oryza sativa) proteinkinase,PHOSPHORUS-STARVATION TOLERANCE1 (OsPSTOL1), was previously shown to enhance P acquisition and grain yield in rice under P deficiency. We investigated the role of homologs of OsPSTOL1 in sorghum (Sorghum bicolor) performance under low P. Association mapping was undertaken in two sorghum association panels phenotyped for P uptake, root system morphology and architecture in hydroponics and grain yield and biomass accumulation under low-P conditions, in Brazil and/or in Mali. Root length and root surface area were positively correlated with grain yield under low P in the soil, emphasizing the importance of P acquisition efficiency in sorghum adaptation to low-P availability. SbPSTOL1 alleles reducing root diameter were associated with enhanced P uptake under low P in hydroponics, whereas Sb03g006765 and Sb03g0031680 alleles increasing root surface area also increased grain yield in a low-P soil. SbPSTOL1 genes colocalized with quantitative trait loci for traits underlying root morphology and dry weight accumulation under low P via linkage mapping. Consistent allelic effects for enhanced sorghum performance under low P between association panels, including enhanced grain yield under low P in the soil in Brazil, point toward a relatively stable role for Sb03g006765 across genetic backgrounds and environmental conditions. This study indicates th... Mostrar Tudo |
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Thesagro: |
Fósforo; Solo; Sorgo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02900naa a2200409 a 4500
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008 2014 bl uuuu u00u1 u #d
024 7 $a10.1104/pp.114.243949$2DOI
100 1 $aHUFNAGEL, B.
245 $aDuplicate and conquer$bmultiple homologs of PHOSPHORUS-STARVATION TOLERANCE1 enhance phosphorus acquisition and sorghum performance on low-phosphorus soils.$h[electronic resource]
260 $c2014
520 $aLow soil phosphorus (P) availability is a major constraint for crop production in tropical regions. The rice (Oryza sativa) proteinkinase,PHOSPHORUS-STARVATION TOLERANCE1 (OsPSTOL1), was previously shown to enhance P acquisition and grain yield in rice under P deficiency. We investigated the role of homologs of OsPSTOL1 in sorghum (Sorghum bicolor) performance under low P. Association mapping was undertaken in two sorghum association panels phenotyped for P uptake, root system morphology and architecture in hydroponics and grain yield and biomass accumulation under low-P conditions, in Brazil and/or in Mali. Root length and root surface area were positively correlated with grain yield under low P in the soil, emphasizing the importance of P acquisition efficiency in sorghum adaptation to low-P availability. SbPSTOL1 alleles reducing root diameter were associated with enhanced P uptake under low P in hydroponics, whereas Sb03g006765 and Sb03g0031680 alleles increasing root surface area also increased grain yield in a low-P soil. SbPSTOL1 genes colocalized with quantitative trait loci for traits underlying root morphology and dry weight accumulation under low P via linkage mapping. Consistent allelic effects for enhanced sorghum performance under low P between association panels, including enhanced grain yield under low P in the soil in Brazil, point toward a relatively stable role for Sb03g006765 across genetic backgrounds and environmental conditions. This study indicates that multiple SbPSTOL1 genes have a more general role in the root system, not only enhancing root morphology traits but also changing root system architecture, which leads to grain yield gain under low-P availability in the soil.
650 $aFósforo
650 $aSolo
650 $aSorgo
700 1 $aSOUSA, S. M. de
700 1 $aASSIS, L.
700 1 $aGUIMARAES, C. T.
700 1 $aLEISER, W.
700 1 $aAZEVEDO, G. C.
700 1 $aNEGRI, B.
700 1 $aLARSON, B. G.
700 1 $aSHAFF, J. E.
700 1 $aPASTINA, M. M.
700 1 $aBARROS, B. A.
700 1 $aWELTZIEN, E.
700 1 $aRATTUNDE, H. F. W.
700 1 $aVIANA, J. H.
700 1 $aCLARK, R. T.
700 1 $aFALCÃO, A.
700 1 $aGAZAFFI, R.
700 1 $aGARCIA, A. A. F.
700 1 $aSCHAFFERT, R. E.
700 1 $aKOCHIAN, L. V.
700 1 $aMAGALHAES, J. V.
773 $tPlant Physiology, Bethesda$gv. 166, p. 659-677, Oct. 2014.
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