Aluminum (Al) toxicity is a major factor limiting crop production and plant growth in acid soils. The complex inheritance of Al toxicity and tolerance mechanisms in maize has uncharacterized yet. In this study, the maize inbred line 178 seedlings were treated with 200 µmol L–1 CaCl2+0 µmol L–1 AlCl3 (control) and 200 µmol L–1 CaCl2+60 µmol L–1 AlCl3 (Al treatment) for 1 and 6 h, respectively. The experiment was repeated three times. Then a detailed temporal analysis of root gene expression was performed using an Agilent GeneChip with 34 715 genes, only the genes showing more than 2.0-fold difference (P
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