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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
01/03/2019 |
Data da última atualização: |
18/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BERNARDINO, K. C.; PASTINA, M. M.; MENEZES, C. B. de; SOUSA, S. M. de; MACIEL, L. S.; CARVALHO JÚNIOR, G.; GUIMARÃES, C. T.; BARROS, B. de A.; SILVA, L. da C. e; CARNEIRO, P. C. S.; SCHAFFERT, R. E.; KOCHIAN, L. V.; MAGALHAES, J. V. de. |
Afiliação: |
Karine C. Bernardino, Universidade Federal de Minas Gerais; MARIA MARTA PASTINA, CNPMS; CICERO BESERRA DE MENEZES, CNPMS; SYLVIA MORAIS DE SOUSA TINOCO, CNPMS; Laiane S. Maciel, Universidade Federal de Minas Gerais; Geraldo Carvalho Júnior; CLAUDIA TEIXEIRA GUIMARAES, CNPMS; BEATRIZ DE ALMEIDA BARROS, CNPMS; Luciano da Costa e Silva; Pedro C. S. Carneiro; ROBERT EUGENE SCHAFFERT, CNPMS; Leon V. Kochian; JURANDIR VIEIRA DE MAGALHAES, CNPMS. |
Título: |
The genetic architecture of phosphorus efficiency in sorghum involves pleiotropic QTL for root morphology and grain yield under low phosphorus availability in the soil. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
BMC Plant Biology, v. 19, n. 87, p. 1-15, 2019. |
DOI: |
10.1186/s12870-019-1689-y |
Idioma: |
Inglês |
Conteúdo: |
Background: Phosphorus (P) fixation on aluminum (Al) and iron (Fe) oxides in soil clays restricts P availability for crops cultivated on highly weathered tropical soils, which are common in developing countries. Hence, P deficiency becomes a major obstacle for global food security. We used multi-trait quantitative trait loci (QTL) mapping to study the genetic architecture of P efficiency and to explore the importance of root traits on sorghum grain yield on a tropical low-P soil. Results: P acquisition efficiency was the most important component of P efficiency, and both traits were highly correlated with grain yield under low P availability. Root surface area was positively associated with grain yield. The guinea parent, SC283, contributed 58% of all favorable alleles detected by single-trait mapping. Multi-trait mapping detected 14 grain yield and/or root morphology QTLs. Tightly linked or pleiotropic QTL underlying the surface area of fine roots (1?2?mm in diameter) and grain yield were detected at positions 1?7 megabase pairs (Mb) and 71?Mb on chromosome 3, respectively, and a root diameter/grain yield QTL was detected at 7?Mb on chromosome 7. All these QTLs were near sorghum homologs of the rice serine/threonine kinase, OsPSTOL1. The SbPSTOL1 genes on chromosome 3, Sb03g006765 at 7?Mb and Sb03g031690 at 60?Mb were more highly expressed in SC283, which donated the favorable alleles at all QTLs found nearby SbPSTOL1 genes. The Al tolerance gene, SbMATE, may also influence a grain yield QTL on chromosome 3. Another PSTOL1-like gene, Sb07g02840, appears to enhance grain yield via small increases in root diameter. Co-localization analyses suggested a role for other genes, such as a sorghum homolog of the Arabidopsis ubiquitin-conjugating E2 enzyme, phosphate 2 (PHO2), on grain yield advantage conferred by the elite parent, BR007 allele. Conclusions: Genetic determinants conferring higher root surface area and slight increases in fine root diameter may favor P uptake, thereby enhancing grain yield under low-P availability in the soil. Molecular markers for SbPSTOL1 genes and for QTL increasing grain yield by non-root morphology-based mechanisms hold promise in breeding strategies aimed at developing sorghum cultivars adapted to low-P soils. MenosBackground: Phosphorus (P) fixation on aluminum (Al) and iron (Fe) oxides in soil clays restricts P availability for crops cultivated on highly weathered tropical soils, which are common in developing countries. Hence, P deficiency becomes a major obstacle for global food security. We used multi-trait quantitative trait loci (QTL) mapping to study the genetic architecture of P efficiency and to explore the importance of root traits on sorghum grain yield on a tropical low-P soil. Results: P acquisition efficiency was the most important component of P efficiency, and both traits were highly correlated with grain yield under low P availability. Root surface area was positively associated with grain yield. The guinea parent, SC283, contributed 58% of all favorable alleles detected by single-trait mapping. Multi-trait mapping detected 14 grain yield and/or root morphology QTLs. Tightly linked or pleiotropic QTL underlying the surface area of fine roots (1?2?mm in diameter) and grain yield were detected at positions 1?7 megabase pairs (Mb) and 71?Mb on chromosome 3, respectively, and a root diameter/grain yield QTL was detected at 7?Mb on chromosome 7. All these QTLs were near sorghum homologs of the rice serine/threonine kinase, OsPSTOL1. The SbPSTOL1 genes on chromosome 3, Sb03g006765 at 7?Mb and Sb03g031690 at 60?Mb were more highly expressed in SC283, which donated the favorable alleles at all QTLs found nearby SbPSTOL1 genes. The Al tolerance gene, SbMATE, may also influence... Mostrar Tudo |
Thesagro: |
Deficiência; Fósforo; Raiz; Solo Ácido; Sorgo. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/193718/1/Genetic-architecture.pdf
|
Marc: |
LEADER 03317naa a2200337 a 4500 001 2106657 005 2023-03-18 008 2019 bl uuuu u00u1 u #d 024 7 $a10.1186/s12870-019-1689-y$2DOI 100 1 $aBERNARDINO, K. C. 245 $aThe genetic architecture of phosphorus efficiency in sorghum involves pleiotropic QTL for root morphology and grain yield under low phosphorus availability in the soil.$h[electronic resource] 260 $c2019 520 $aBackground: Phosphorus (P) fixation on aluminum (Al) and iron (Fe) oxides in soil clays restricts P availability for crops cultivated on highly weathered tropical soils, which are common in developing countries. Hence, P deficiency becomes a major obstacle for global food security. We used multi-trait quantitative trait loci (QTL) mapping to study the genetic architecture of P efficiency and to explore the importance of root traits on sorghum grain yield on a tropical low-P soil. Results: P acquisition efficiency was the most important component of P efficiency, and both traits were highly correlated with grain yield under low P availability. Root surface area was positively associated with grain yield. The guinea parent, SC283, contributed 58% of all favorable alleles detected by single-trait mapping. Multi-trait mapping detected 14 grain yield and/or root morphology QTLs. Tightly linked or pleiotropic QTL underlying the surface area of fine roots (1?2?mm in diameter) and grain yield were detected at positions 1?7 megabase pairs (Mb) and 71?Mb on chromosome 3, respectively, and a root diameter/grain yield QTL was detected at 7?Mb on chromosome 7. All these QTLs were near sorghum homologs of the rice serine/threonine kinase, OsPSTOL1. The SbPSTOL1 genes on chromosome 3, Sb03g006765 at 7?Mb and Sb03g031690 at 60?Mb were more highly expressed in SC283, which donated the favorable alleles at all QTLs found nearby SbPSTOL1 genes. The Al tolerance gene, SbMATE, may also influence a grain yield QTL on chromosome 3. Another PSTOL1-like gene, Sb07g02840, appears to enhance grain yield via small increases in root diameter. Co-localization analyses suggested a role for other genes, such as a sorghum homolog of the Arabidopsis ubiquitin-conjugating E2 enzyme, phosphate 2 (PHO2), on grain yield advantage conferred by the elite parent, BR007 allele. Conclusions: Genetic determinants conferring higher root surface area and slight increases in fine root diameter may favor P uptake, thereby enhancing grain yield under low-P availability in the soil. Molecular markers for SbPSTOL1 genes and for QTL increasing grain yield by non-root morphology-based mechanisms hold promise in breeding strategies aimed at developing sorghum cultivars adapted to low-P soils. 650 $aDeficiência 650 $aFósforo 650 $aRaiz 650 $aSolo Ácido 650 $aSorgo 700 1 $aPASTINA, M. M. 700 1 $aMENEZES, C. B. de 700 1 $aSOUSA, S. M. de 700 1 $aMACIEL, L. S. 700 1 $aCARVALHO JÚNIOR, G. 700 1 $aGUIMARÃES, C. T. 700 1 $aBARROS, B. de A. 700 1 $aSILVA, L. da C. e 700 1 $aCARNEIRO, P. C. S. 700 1 $aSCHAFFERT, R. E. 700 1 $aKOCHIAN, L. V. 700 1 $aMAGALHAES, J. V. de 773 $tBMC Plant Biology$gv. 19, n. 87, p. 1-15, 2019.
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Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
13/11/2006 |
Data da última atualização: |
23/10/2009 |
Autoria: |
GUERRA, A. F.; ROCHA, O. C.; RODRIGUES, G. C.; SANZONOWICZ, C.; SAMPAIO, J. B. R.; SILVA, H. C.; ARAÚJO, M. C. de. |
Título: |
Irrigação do cafeeiro no cerrado: estratégia de manejo de água para uniformização de florada. |
Ano de publicação: |
2005 |
Fonte/Imprenta: |
Planaltina, DF: Embrapa Cerrados, 2005. |
Páginas: |
4 p. |
Série: |
(Embrapa Cerrados. Comunicado Técnico, 122). |
Idioma: |
Português |
Conteúdo: |
ABSTRACT: The objective of this research was to define irrigation scheduling for coffee trees in the brazilian Cerrado region to optimize yield and coffee grain quality. The experimental treatments were: a) irrigation all over the year (RH1), suplemental water application after blossoming induced by rain (RH4), stop water application, at the harvesting time from June 15 to end of August until leaf water potential measured at pre-dawn reached - 2.0 MPa (RH3) and - 3,4 MPa (RH4) and rainfed crop. The soil water content was monitored by using a profile probe of 1 m. Water was applied to fill the soil profile of 0.40m until field capacity (-0,0008 MPa) as soil water depletion reached 50% of available soil water. The results shows that stopping irrigation from June 15 to end of August, until leaf potential, measured at pre-drawn, reached value of - 2.0 MPa resulted in just on uniform blossoming period, more than 80% pf mature grain at harvesting time and yield of 4.200 kg.ha(-1) of peeled coffee grain in the last three comercial harvesting. |
Palavras-Chave: |
Coffee. |
Thesagro: |
Café; Cerrado; Coffea Arábica; Irrigação; Manejo de Água. |
Thesaurus NAL: |
irrigation; water management. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAC-2009/27309/1/comtec_122.pdf
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Marc: |
LEADER 01886nam a2200301 a 4500 001 1569841 005 2009-10-23 008 2005 bl uuuu u0uu1 u #d 100 1 $aGUERRA, A. F. 245 $aIrrigação do cafeeiro no cerrado$bestratégia de manejo de água para uniformização de florada. 260 $aPlanaltina, DF: Embrapa Cerrados$c2005 300 $a4 p. 490 $a(Embrapa Cerrados. Comunicado Técnico, 122). 520 $aABSTRACT: The objective of this research was to define irrigation scheduling for coffee trees in the brazilian Cerrado region to optimize yield and coffee grain quality. The experimental treatments were: a) irrigation all over the year (RH1), suplemental water application after blossoming induced by rain (RH4), stop water application, at the harvesting time from June 15 to end of August until leaf water potential measured at pre-dawn reached - 2.0 MPa (RH3) and - 3,4 MPa (RH4) and rainfed crop. The soil water content was monitored by using a profile probe of 1 m. Water was applied to fill the soil profile of 0.40m until field capacity (-0,0008 MPa) as soil water depletion reached 50% of available soil water. The results shows that stopping irrigation from June 15 to end of August, until leaf potential, measured at pre-drawn, reached value of - 2.0 MPa resulted in just on uniform blossoming period, more than 80% pf mature grain at harvesting time and yield of 4.200 kg.ha(-1) of peeled coffee grain in the last three comercial harvesting. 650 $airrigation 650 $awater management 650 $aCafé 650 $aCerrado 650 $aCoffea Arábica 650 $aIrrigação 650 $aManejo de Água 653 $aCoffee 700 1 $aROCHA, O. C. 700 1 $aRODRIGUES, G. C. 700 1 $aSANZONOWICZ, C. 700 1 $aSAMPAIO, J. B. R. 700 1 $aSILVA, H. C. 700 1 $aARAÚJO, M. C. de
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