Expression Patterns of Various Maize ZmbZIPs

  Objective   Expression patterns of 10 ZmbZIPs in Zea mays under stresses were analyzed for further understanding of the biological functions of bZIP associated with the plant development and stress responses.

  Method  Expressions of the ZmbZIPs under imposed stresses of 200 mmol·L⁻¹ NaCl, 20% PEG6000, 4℃, and nitrogen deficiency were studied.

  Result  The evolutionary analysis divided the 10 ZmbZIP genes with a conserved domain consisting of a basic region and a leucine zipper into 5 subgroups. These genes expressed differently in different tissues indicating their diverse roles in the development of a maize plant. And they showed significantly differentiated expression patterns under the simulated salt, drought, low temperature, and nitrogen deficiency stresses reflecting their diverse and important roles played in the stress signaling pathways.

  Conclusion  Differentiations on the expression patterns of 10 ZmbZIPs in different tissues and under different stresses as demonstrated in this study revealed diversity in biological functions of the genes in maize.