Identification of RNA helicases in and their expression patterns under abiotic stress.

UNLABELLED

RNA helicase catalyzes the denaturation of DNA or the unwinding of double-stranded RNA. It is vital to RNA splicing, transport, editing, degradation and the initiation of protein translation. However, the function of RNA helicase in has rarely been reported. In this study, 170 putative RNA helicase genes were identified in the genome, and classified into three subfamilies based on the presence of either a DEAD-box (52 genes), DEAH-box (38 genes), or DExD/H-box (80 genes) in their coding regions. Additionally, conserved helicase_C domains and other functional domains (e.g., the HA2, DUF, and ZnF domains) were also present in these genes. Chromosomal mapping and synteny analyses showed that there were tandem and segment duplications of RNA helicase genes. Furthermore, transcriptome and real-time PCR analysis showed that the expression of 35 RNA helicase genes was affected by abiotic stress. To be specific, 17, 12 and 19 genes were regulated by salt, drought and cold stress, respectively. It is worth noting that and responded to all three types of stress. These results provide valuable information for understanding the RNA helicase genes in and their abiotic stress-related functions.

SUPPLEMENTARY INFORMATION

The online version contains supplementary material available at 10.1007/s12298-021-01087-y.