Peroxidase plays important roles in soybean tolerance to Al toxicity

Aluminum (Al) toxicity is an important restraint to soybean (Glycine max L. Merr.) production on acid soils. However, little is known about the genes underlying Al tolerance in soybean. We used microarrays to detail the global programme of gene expression under control and Al stress in two soybean at 6, 12, and 24 h. The roots of a Al-tolerant and a Al-sensitive soybean varieties were harvested after 6,12,24h of hydroponics under control and Al stress , each withone biological replicate.Then microarray chips were performed on the 12 samples. We aim to find key candidate genes and investigate their roles in soybean tolerance to Al toxicity. To that end, we analyzed the differently expressed genes in Al-tolerant (KF) and Al-sensitive (GF) soybean varieties under control and Al stress at 6, 12, and 24 h.