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Registros recuperados : 71 | |
5. | | CANIATO, F. F.; GUIMARAES, C. T.; SCHAFFERT, R. E.; KOCHIAN, L. V.; MAGALHAES, J. V. D. Association mapping for aluminum tolerance in candidate regions of the Altsb locus in sorghum. In: CONGRESSO BRASILEIRO DE GENÉTICA, 55., 2009, Águas de Lindóia, SP. Resumos... Ribeirão Preto: Sociedade Brasileira de Genética, 2009. p. 150. Biblioteca(s): Embrapa Milho e Sorgo. |
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7. | | PINEROS, M. A.; SHAFF, J. E.; MANSLANK, H. S.; ALVES, V. M. C.; KOCHIAN, L. V. Aluminum resistance in maize cannot be solely explained by root organic acid exudation. A comparative physiological study Plant Physiology, Bethesda, v. 137, n. 1, p. 231-241, 2005. Biblioteca(s): Embrapa Milho e Sorgo. |
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12. | | MAGALHAES, J. V.; SOUSA, S. M. de; GUIMARAES, C. T.; KOCHIAN, L. V. The role of root morphology and architecture in phosphorus acquisiton: physiological, genetic, and molecular basis. In: HOSSAIN, M. A.; KAMIYA, T.; BURRITT, D. J.; PHAN TRAN, L.-S.; FUJIWARA, T. (Ed.). Plant macronutrient use efficiency: molecular and genomic perspectives in crop plants. London: Academic Press, 2017. cap. 7, p. 123-147. Biblioteca(s): Embrapa Milho e Sorgo. |
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15. | | KOCHIAN, L.; HOEKENGA, O.; MAGALHAES, J.; PINEROS, M.; ALVES, V.; MARON, L.; MASON, P.; GUIMARAES, C.; SCHAFFERT, R. Integrating genomic, molecular genetic and physiological approaches to identify plant aluminum tolerance genes and their associated physilogical mechanisms. In: INTERNATIONAL PLANT NUTRITION COLLOQUIUM, 15., 2005, Beijing, China. Proceedings... Beijing: Tsinghua University, 2005. p. 18-19. Biblioteca(s): Embrapa Milho e Sorgo. |
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16. | | CANIATO, F. F.; HAMBLIN, M. T.; GUIMARAES, C. T.; ZHANG, Z.; SCHAFFERT, R. E.; KOCHIAN, L. V.; MAGALHAES, J. V. Association mapping provides insights into the origin and the fine structure of the sorghum aluminum tolerance locus, AltSB. Plos One, San Francisco, v. 9, n. 1, p. 1-12, 2014. Biblioteca(s): Embrapa Milho e Sorgo. |
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17. | | ALVES, V. M. C.; MAGALHAES, J. V. de; KOCHIAN, L. V.; PARENTONI, S. N.; PAIVA, E.; GARVIN, D. F. Acumulação de alumínio em ápices de raízes de milho. In: REUNIAO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRICAO DE PLANTAS, 24.; REUNIAO BRASILEIRA SOBRE MICORRIZAS, 8.; SIMPOSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 6.; REUNIAO BRASILEIRA DE BIOLOGIA DO SOLO, 3., 2000, Santa Maria, RS. Biodinâmica do solo: guia do congressista. [Viçosa, MG]: Sociedade Brasileira de Ciência do Solo; [São Paulo]: Sociedade Brasileira de Microbiologia; Santa Maria, RS: Universidade Federal de Santa Maria, Departamento de Solos, 2000. Fertbio 2000. p. 151. Biblioteca(s): Embrapa Milho e Sorgo. |
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18. | | KOCHIAN, L.; MAGALHAES, J.; LIU, J.; HOEKENGA, O.; PINEROS, M.; SCHAFFERT, R. E.; SHAFF, J.; ALVES, V. Molecular approaches to rhizosphere research: identification and characterization of aluminum tolerance genes and their use to improve acid soil tolerance. In: INTERNATIONAL CONFERENCE RHIZOSPHERE , 2., 2007, Montpellier. Book of abstracts... Montpellier: INRA, 2007. Biblioteca(s): Embrapa Milho e Sorgo. |
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19. | | ALVES, V. M. C.; GUIMARAES, C. T.; SHAFF, J.; KOCHIAN, L.; PARENTONI, S. N.; SCHAFFERT, R. E.; MAGALHÃES, J. Molecular and physiological analysis of aluminum tolerance in maize recombinant inbreds. In: INTERNATIONAL PLANT NUTRITION COLLOQUIUM, 16., 2009, Sacramento, California. Proceedings... Davis: University of California, 2009. Biblioteca(s): Embrapa Milho e Sorgo. |
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20. | | PAPERNIK, L. A.; BETHEA, A. S.; SINGLETON, T. E.; MAGALHAES, J. V.; GARVIN, D. F.; KOCHIAN, L. V. Physiological basis of reduced Al tolerance in ditelosomic lines of Chinese spring wheat. Planta, New York, v. 212, n. 5/6, p. 829-834, 2001. Biblioteca(s): Embrapa Milho e Sorgo. |
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Registros recuperados : 71 | |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
04/09/2014 |
Data da última atualização: |
23/05/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
GUIMARAES, C. T.; SIMOES, C. C.; PASTINA, M. M.; MARON, L. G.; MAGALHAES, J. V.; VASCONCELLOS, R. C. C.; GUIMARAES, L. J. M.; LANA, U. G. de P.; TINOCO, C. F. S.; NODA, R. W.; BELICUAS, S. N. J.; KOCHIAN, L. V.; ALVES, V. M. C.; PARENTONI, S. N. |
Afiliação: |
CLAUDIA TEIXEIRA GUIMARAES, CNPMS; MARIA MARTA PASTINA, CNPMS; JURANDIR VIEIRA DE MAGALHAES, CNPMS; LAURO JOSE MOREIRA GUIMARAES, CNPMS; UBIRACI GOMES DE PAULA LANA, CNPMS; ROBERTO WILLIANS NODA, CNPMS; SILVIA NETO JARDIM BELICUAS, CNPMS; VERA MARIA CARVALHO ALVES, CNPMS; SIDNEY NETTO PARENTONI, CNPMS. |
Título: |
Genetic dissection of Al tolerance QTLs in the maize genome by high density SNP scan. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
BMC Genomics, v. 15, n. 153, p. 1-14, 2014. |
DOI: |
10.1186/1471-2164-15-153 |
Idioma: |
Inglês |
Conteúdo: |
Background: Aluminum (Al) toxicity is an important limitation to food security in tropical and subtropical regions.High Al saturation on acid soils limits root development, reducing water and nutrient uptake. In addition to naturally occurring acid soils, agricultural practices may decrease soil pH, leading to yield losses due to Al toxicity. Elucidating the genetic and molecular mechanisms underlying maize Al tolerance is expected to accelerate the development of Al-tolerant cultivars. Results: Five genomic regions were significantly associated with Al tolerance, using 54,455 SNP markers in are combinant inbred line population derived from Cateto Al237. Candidate genes co-localized with Al tolerance QTLs were further investigated. Near-isogenic lines (NILs) developed for ZmMATE2 were as Al-sensitive as the recurrent line, indicating that this candidate gene was not responsible for the Al tolerance QTL on chromosome 5, qALT5. However, ZmNrat1, a maize homolog to OsNrat1, which encodes an Al3+ specific transporter previously implicated in rice Al tolerance, was mapped at ~40 Mbp from qALT5. We demonstrate for the first time that ZmNrat1 is preferentially expressed in maize root tips and is up-regulated by Al, similarly to OsNrat1 in rice, suggesting a role of this gene in maize Al tolerance. The strongest-effect QTL was mapped on chromosome 6 (qALT6), within a 0.5 Mbp region where three copies of the Al tolerance gene, ZmMATE1, were found in tandem configuration. qALT6 was shown to increase Al tolerance in maize; the qALT6-NILs carrying three copies of ZmMATE1 exhibited a two-fold increase in Al tolerance, and higher expression of ZmMATE1 compared to the Al sensitive recurrent parent. Interestingly, a new source of Al tolerance via ZmMATE1 was identified in a Brazilian elite line that showed high expression of ZmMATE1 but carries a single copy of ZmMATE1. Conclusions: High ZmMATE1 expression, controlled either by three copies of the target gene or by an unknown molecular mechanism, is responsible for Al tolerance mediated by qALT6 . As Al tolerant alleles at qALT6 are rare in maize, marker-assisted introgression of this QTL is an important strategy to improve maize adaptation to acid soils worldwide. MenosBackground: Aluminum (Al) toxicity is an important limitation to food security in tropical and subtropical regions.High Al saturation on acid soils limits root development, reducing water and nutrient uptake. In addition to naturally occurring acid soils, agricultural practices may decrease soil pH, leading to yield losses due to Al toxicity. Elucidating the genetic and molecular mechanisms underlying maize Al tolerance is expected to accelerate the development of Al-tolerant cultivars. Results: Five genomic regions were significantly associated with Al tolerance, using 54,455 SNP markers in are combinant inbred line population derived from Cateto Al237. Candidate genes co-localized with Al tolerance QTLs were further investigated. Near-isogenic lines (NILs) developed for ZmMATE2 were as Al-sensitive as the recurrent line, indicating that this candidate gene was not responsible for the Al tolerance QTL on chromosome 5, qALT5. However, ZmNrat1, a maize homolog to OsNrat1, which encodes an Al3+ specific transporter previously implicated in rice Al tolerance, was mapped at ~40 Mbp from qALT5. We demonstrate for the first time that ZmNrat1 is preferentially expressed in maize root tips and is up-regulated by Al, similarly to OsNrat1 in rice, suggesting a role of this gene in maize Al tolerance. The strongest-effect QTL was mapped on chromosome 6 (qALT6), within a 0.5 Mbp region where three copies of the Al tolerance gene, ZmMATE1, were found in tandem configuration. qALT6 was sh... Mostrar Tudo |
Palavras-Chave: |
Genotipagem; Sequenciamento. |
Thesagro: |
Genética; Mate; Milho; Zea mays. |
Categoria do assunto: |
-- |
Marc: |
LEADER 03239naa a2200361 a 4500 001 1994210 005 2017-05-23 008 2014 bl uuuu u00u1 u #d 024 7 $a10.1186/1471-2164-15-153$2DOI 100 1 $aGUIMARAES, C. T. 245 $aGenetic dissection of Al tolerance QTLs in the maize genome by high density SNP scan.$h[electronic resource] 260 $c2014 520 $aBackground: Aluminum (Al) toxicity is an important limitation to food security in tropical and subtropical regions.High Al saturation on acid soils limits root development, reducing water and nutrient uptake. In addition to naturally occurring acid soils, agricultural practices may decrease soil pH, leading to yield losses due to Al toxicity. Elucidating the genetic and molecular mechanisms underlying maize Al tolerance is expected to accelerate the development of Al-tolerant cultivars. Results: Five genomic regions were significantly associated with Al tolerance, using 54,455 SNP markers in are combinant inbred line population derived from Cateto Al237. Candidate genes co-localized with Al tolerance QTLs were further investigated. Near-isogenic lines (NILs) developed for ZmMATE2 were as Al-sensitive as the recurrent line, indicating that this candidate gene was not responsible for the Al tolerance QTL on chromosome 5, qALT5. However, ZmNrat1, a maize homolog to OsNrat1, which encodes an Al3+ specific transporter previously implicated in rice Al tolerance, was mapped at ~40 Mbp from qALT5. We demonstrate for the first time that ZmNrat1 is preferentially expressed in maize root tips and is up-regulated by Al, similarly to OsNrat1 in rice, suggesting a role of this gene in maize Al tolerance. The strongest-effect QTL was mapped on chromosome 6 (qALT6), within a 0.5 Mbp region where three copies of the Al tolerance gene, ZmMATE1, were found in tandem configuration. qALT6 was shown to increase Al tolerance in maize; the qALT6-NILs carrying three copies of ZmMATE1 exhibited a two-fold increase in Al tolerance, and higher expression of ZmMATE1 compared to the Al sensitive recurrent parent. Interestingly, a new source of Al tolerance via ZmMATE1 was identified in a Brazilian elite line that showed high expression of ZmMATE1 but carries a single copy of ZmMATE1. Conclusions: High ZmMATE1 expression, controlled either by three copies of the target gene or by an unknown molecular mechanism, is responsible for Al tolerance mediated by qALT6 . As Al tolerant alleles at qALT6 are rare in maize, marker-assisted introgression of this QTL is an important strategy to improve maize adaptation to acid soils worldwide. 650 $aGenética 650 $aMate 650 $aMilho 650 $aZea mays 653 $aGenotipagem 653 $aSequenciamento 700 1 $aSIMOES, C. C. 700 1 $aPASTINA, M. M. 700 1 $aMARON, L. G. 700 1 $aMAGALHAES, J. V. 700 1 $aVASCONCELLOS, R. C. C. 700 1 $aGUIMARAES, L. J. M. 700 1 $aLANA, U. G. de P. 700 1 $aTINOCO, C. F. S. 700 1 $aNODA, R. W. 700 1 $aBELICUAS, S. N. J. 700 1 $aKOCHIAN, L. V. 700 1 $aALVES, V. M. C. 700 1 $aPARENTONI, S. N. 773 $tBMC Genomics$gv. 15, n. 153, p. 1-14, 2014.
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