Data/hora: 23/06/2024 01:30:00

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 03/10/2007
Data da última atualização: | 25/05/2018
Autoria: | MAGALHAES, J. V. de; LIU, J.; GUIMARAES, C. T.; LANA, U. G. de P.; ALVES, V. M. C.; WANG, Y-H.; SCHAFFERT, R. E.; HOEKENGA, O. A.; PINEROS, M. A.; SHAFF, J. E.; KLEIN, P. E.; CARNEIRO, N. P.; COELHO, C. M.; TRICK, H. N.; KOCHIAN, L. V.
Afiliação: | JURANDIR VIEIRA DE MAGALHAES, CNPMS; Jiping Liu, Cornell University; CLAUDIA TEIXEIRA GUIMARAES, CNPMS; UBIRACI GOMES DE PAULA LANA, CNPMS; VERA MARIA CARVALHO ALVES, CNPMS; Yi-Hong Wang, Cornell University; ROBERT EUGENE SCHAFFERT, CNPMS; Owen A. Hoekenga, Cornell University; Miguel A. Piñros, Cornell University; Jon E. Shaff, Cornell University; Patricia E. Klein, Texas A@M University; NEWTON PORTILHO CARNEIRO, CNPMS; Cintia M. Coelho; Harold N Trick, Kansas State University; Leon V. Kochian, Cornell University.
Título: | A gene in the multidrug and toxic compound extrusion (MATE) family confers aluminum tolerance in sorghum.
Ano de publicação: | 2007
Fonte/Imprenta: | Nature Genetics, New York, v. 39, n. 9, p. 1156-1161, 2007.
Idioma: | Inglês
Conteúdo: | Crop yields are significantly reduced by aluminum toxicity on highly acidic soils, which comprise up to 50% of the world's arable land1-3. Candidate aluminum tolerance proteins include organic acid efflux transporters, with the organic acids forming non-toxic complexes with rhizosphere aluminum1,4. In this study, we used positional cloning to identify the gene encoding a member of the multidrug and toxic compound extrusion (MATE) family, an aluminum-activated citrate transporter, as responsible for the major sorghum (Sorghum bicolor) aluminum tolerance locus, AltsB5 .Polymorphisms in regulatory regions of AltSB are likely to contribute to large allelic effects, acting to increase AltSB expression in the root apex of tolerant genotypes. Furthermore, aluminum-inducible AltSB expression is associated with induction of aluminum tolerance via enhanced root citrate exudation. These findings will allow us to identify superior AltSB haplotypes that can be incorporated via molecular breeding and biotechnology into acid soil breeding programs, thus helping to increase crop yields in developing countries where acidic soils predominate.
Thesagro: | Genética.
Categoria do assunto: | S Ciências Biológicas
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (20081-1) - UPC - AP - DD -  -  -  - DIS