Genome-Wide Identification of B3 DNA-Binding Superfamily Members (ABI, HIS, ARF, RVL, REM) and Their Involvement in Stress Responses and Development in <i>Camelina sativa</i>
Mahmoud Kandeel | Mohamed A. Morsy | Hany M. Abd El-Lateef | Mohamed Marzok | Hossam S. El-Beltagi | Khalid M. Al Khodair | Ibrahim Albokhadaim | Katharigatta N. Venugopala
The B3 DNA-binding superfamily is a group of gene families that contain a B3 domain in their proteins. Members of this superfamily are involved in responses to stresses including salt, drought, and cold stress. The B3 DNA-binding superfamily has not been fully studied in <i>Camelina sativa</i>. A total of eighty-seven members of this superfamily were identified in <i>C. sativa</i>. The identified genes were placed into five groups based on a phylogenetic analysis. All the proteins were predicted to be nuclear. The RAV and ARF gene family had the most conserved motifs, with nine out of ten motifs being preserved, while the REM gene family was discovered to have the fewest, with just one conserved motif being present. The RAV and REM gene families showed the least protein–protein interactions. The CsARF5 and CsARF7 genes showed the highest potent interaction score with multiple auxin-responsive proteins. A qPCR analysis was carried out on six genes that showed stress-induced expression changes. CsREM17, CsREM5, and CsRAVL5 were discovered to be considerably increased in response to drought stress, while CsARF10, CsARF4, and CsREM34 were found to be downregulated to a large extent. The B3 DNA-binding superfamily regulates abscisic acid signaling, which in turn influences plant growth and stress resistance.
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