Genome-wide Identification and Expression Analysis of the TRK Gene Family in Aspergillus oryzae

Abstract

Aspergillus oryzae is a traditional production strain in China for brewing wine, edible soy sauce, fermented soya beans and so on. It can be well adapted to salt stress, low pH and alcohol stress, and the TRK gene family plays an important role in maintaining stable osmotic balance in vivo. In this study, the members of TRK gene family in Aspergillus oryzae were identified and analyzed on the whole genome level by means of bioinformatics. The phylogenetic tree, gene structure and motifs were analyzed. The results showed that five TRK gene family members were identified in Aspergillus oryzae, and the expression analysis showed that four of the TRK genes increased with the increase of salt concentration. The results of this study will lay a theoretical foundation for the cloning of the members of the TRK gene family and the identification of their functions. It will also provide reference information for studying the cationic transporter and osmotic pressure regulation mechanism of Aspergillus oryzae.