Mapping aluminum tolerance loci in cereals: A tool available for crop breeding

• Claudio Inostroza-Blancheteau ^[1] ; Braulio Soto ^[2] ; Cristian Ibáñez ^[3] ; Pilar Ulloa ^[4] ; Felipe Aquea ^[1] ; Patricio Arce-Johnson ^[1] ; Marjorie Reyes-Díaz ^[4]
  1. [1] Pontificia Universidad Católica de Chile

     Pontificia Universidad Católica de Chile

     Santiago, Chile

     
  2. [2] Instituto de Investigaciones Agropecuarias

     Instituto de Investigaciones Agropecuarias

     Santiago, Chile

     
  3. [3] Universidad de Talca

     Universidad de Talca

     Provincia de Talca, Chile

     
  4. [4] Universidad de La Frontera

     Universidad de La Frontera

     Temuco, Chile

     

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• Localización: Electronic Journal of Biotechnology, ISSN-e 0717-3458, Vol. 13, Nº. 4, 2010, págs. 11-12
• Idioma: inglés
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• Resumen

  • Aluminum (Al) toxicity is the main factor limiting crop productivity in acidic soils around the world. In cereals, this problem reduces crop yields by 30-40%. The use of DNA-based markers linked to phenotypic traits is an interesting alternative approach. Strategies such as molecular marker-assisted selection (MAS) in conjunction with bioinformatics-based tools such as graphical genotypes (GGT) have been important for confirming introgression of genes or genomic regions in cereals but also to reduce the time and cost of identifying them through genetic selection. These biotechnologies also make it possible to identify target genes or quantitative trait loci (QTL) that can be potentially used in similar crops to increase their productivity. This review presents the main advances in the genetic improvement of cereals for Al-tolerance.