Genome-wide annotation and expression analysis of WRKY and bHLH transcriptional factor families reveal their involvement under cadmium stress in tomato (Solanum lycopersicum L.).

ABSTRACT: The WRKY and bHLH transcription factors have been implicated in the regulation of gene expression during various physiological processes in plants, especially in plant stress responses. However, little information about the heavy metal-responsive SlWRKY and SlbHLH in tomato (Solanum lycopersicum) is available. We performed a genome-wide investigation for these two TF families in S. lycopersicum and determined their role in cadmium (Cd) stress tolerance. Furthermore, ortholog analysis with the Arabidopsis genome led to classifying WRKY and bHLH ortholog genes into nine and 11 clusters, respectively. The comparative phylogenetic analysis revealed duplication events and gene loss in Arabidopsis and S. lycopersicum, w

SUBMITTER: Khan I 

PROVIDER: S-EPMC9905835 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature