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Mapping aluminum tolerance loci in cereals: A tool available for crop breeding Electron. J. Biotechnol.
Inostroza-Blancheteau,Claudio; Soto,Braulio; Ibáñez,Cristian; Ulloa,Pilar; Aquea,Felipe; Arce-Johnson,Patricio; Reyes-Díaz,Marjorie.
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...
Tipo: Journal article Palavras-chave: Aluminum tolerance; ALMT1; Cereals; Marker-assisted selection; Organic acid.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000400011
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Organic acid carriers in tolerance to toxic aluminum in wheat Ciência Rural
Silva,Gerarda Beatriz Pinto da; Zanella,Camila Martini; Delatorre,Carla Andréa; Chaves,Márcia Soares; Martinelli,José Antônio; Federizzi,Luiz Carlos.
ABSTRACT: Aluminum (Al) toxicity in plants is seen in about 15% of the soils worldwide, restraining yields in arable land. In Brazil, acidic soils limit production of wheat (Triticum aestivum L.) and other cereals. Al is toxic for most winter cereals when its concentration increases and soil pH is below 5. One of the main concerns with acidic soil is the increase in the mobility of Al3+ions. Al binds to cell walls in roots, preventing meristematic elongation in sensitive species, causing damage to the root system and results in lower yields. Al3+ forms highly stable complexes with phosphorus (P), limiting its availability to plants, as well as reducing cell division and elongation. To deal with Al toxicity, plants have developed strategies such as organic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Triticum aestivum L. Al3+; Acid soils; ALMT1; MATE..
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001000250
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