Comparative Analyses Reveal Peroxidases Play Important Roles in Soybean Tolerance to Aluminum Toxicity

Aluminum (Al) toxicity is an important barrier to soybean (Glycine max (L.) Merr.) production in acid soils. However, little known about the genes underlying Al tolerance soybean. We aim find key candidate and investigate their roles this study. Comparative transcriptome analyses of Al-tolerant (KF) Al-sensitive (GF) varieties under control stress at 6, 12, 24 h were investigated. A total 1411 showed specific up-regulation KF or more than GF by stress, which significantly enriched GO terms peroxidase (POD) activity, transporter activity (including tolerance-related ABC transporter, ALMT, MATE), four families transcription factors (AP2, C3H4, MYB, WRKY). The expression levels seven POD up-regulated for least one time point KF. H2O2 pretreatment improved KF, likely due increased induced H2O2. Our results suggest that PODs play toxicity. also propose a list would provide valuable insights into mechanisms