Differentially Expressed Genes Identification of Kohlrabi Seedlings ( var. L.) under Polyethylene Glycol Osmotic Stress and Transcription Factor Family Analysis.

Osmotic stress is a condition in which plants do not get enough water due to changes in environmental factors. Plant response to osmotic stress is a complex process involving the interaction of different stress-sensitive mechanisms. Differentially expressed genes and response mechanisms of kohlrabi have not been reported under osmotic stress. A total of 196,642 unigenes and 33,040 differentially expressed unigenes were identified in kohlrabi seedlings under polyethylene glycol osmotic stress. /, and eight other transcription factor family members with a high degree of interaction with CAT and SOD antioxidant enzyme activity were identified. Subsequently, 151 / genes were identified and analyzed. Twelve conserved motifs were searched and all / genes were clustered into four groups. A total of 149 / genes were randomly distributed on the chromosome, and relative expression level analysis showed that / genes of kohlrabi have obvious specificity in different tissues. This study lays a foundation for explaining the osmotic stress resistance mechanism of kohlrabi and provides a theoretical basis for the functional analysis of / transcription factor family members.