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dc.contributor.authorSCHAFFERT, R. E.pt_BR
dc.contributor.authorSILVA, L. A.pt_BR
dc.contributor.authorALVES, V. M. C.pt_BR
dc.contributor.authorCARVALHO, G. A.pt_BR
dc.contributor.authorMAGALHAES, J. V. D.pt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.created2009-10-14pt_BR
dc.date.issued2009pt_BR
dc.identifier.citationIn: INTERNATIONAL PLANT NUTRITION COLLOQUIUM, 16., 2009, Sacramento, California. Proceedings... Davis: University of California, 2009.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/513834pt_BR
dc.descriptionAltSB, a major gene of the Multidrug and Toxic Compound Extrusion (Mate) family confers tolerance to aluminum toxicity in sorghum. This gene is a transporter gene that is responsible for the exudation of citric acid in the presence of toxic level of aluminum in the soil. The citrate complexes with the toxic aluminum forming a nontoxic compound. During the past several years, isogenic sorghum breeding lines, both cytoplasmic male-sterile lines (A and B-lines) and fertility restoring pollinator lines (R-lines) for this AlTSB gene have been developed at Embrapa Maize and Sorghum. These isogenic lines for AlTSB were used to develop sixteen isogenic sorghum hybrids with zero, one and two alleles for tolerance to aluminum toxicity. These sixteen hybrids are essentially genetically equal but with variation in the dose of the AlTSB allele. Seedlings of these isogenic hybrids were evaluated for root growth in nutrient solution with 0, 11, 20, 27 and 39?M aluminum for seven days at four intervals (0, 3, 5, and 7days). One dose of the gene had a very significant effect on maintaining root growth up to a concentration of 27 ?M aluminum. A second dose of the gene continued to have a positive effect for some of the isogenic hybrids confirming the effect of partial dominance for this gene. The presence of the AlTSB gene in sorghum cultivars used in regions with acid soils or subsoils will contribute to the development of a better and deeper root system and promote greater and more sustainable productivity.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectToxicidadept_BR
dc.titleThe effect of the AltSB gene on root growth in nutrient solution of isogenic sorghum hybrids.pt_BR
dc.typeArtigo em anais e proceedingspt_BR
dc.date.updated2018-07-13T11:11:11Zpt_BR
dc.subject.thesagroSorgopt_BR
dc.subject.thesagroAluminiopt_BR
riaa.ainfo.id513834pt_BR
riaa.ainfo.lastupdate2018-07-13 -03:00:00pt_BR
dc.contributor.institutionROBERT EUGENE SCHAFFERT, CNPMS; Lidiane A. Silva, UNESP; VERA MARIA CARVALHO ALVES, CNPMS; Geraldo A. Carvalho, Universidade Federal Viçosa; JURANDIR VIEIRA DE MAGALHAES, CNPMS.pt_BR
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