Genome-wide identification and gene expression analysis of SOS family genes in tuber mustard (Brassica juncea var. tumida)


Autoři: Chunhong Cheng aff001;  Yuanmei Zhong aff001;  Qing Wang aff001;  Zhaoming Cai aff001;  Diandong Wang aff001;  Changman Li aff001
Působiště autorů: School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing, P.R. China aff001
Vyšlo v časopise: PLoS ONE 14(11)
Kategorie: Research Article
doi: 10.1371/journal.pone.0224672

Souhrn

The Salt Overly Sensitive (SOS) pathway in Arabidopsis thaliana plays important roles in maintaining appropriate ion homeostasis in the cytoplasm and regulating plant tolerance to salinity. However, little is known about the details regarding SOS family genes in the tuber mustard crop (Brassica juncea var. tumida). Here, 12 BjSOS family genes were identified in the B. juncea var. tumida genome including two homologous genes of SOS1, one and three homologs of SOS2 and SOS3, two homologs of SOS4, two homologs of SOS5 and two homologs of SOS6, respectively. The results of conserved motif analysis showed that these SOS homologs contained similar protein structures. By analyzing the cis-elements in the promoters of those BjSOS genes, several hormone- and stress-related cis-elements were found. The results of gene expression analysis showed that the homologous genes were induced by abiotic stress and pathogen. These findings indicate that BjSOS genes play crucial roles in the plant response to biotic and abiotic stresses. This study provides valuable information for further investigations of BjSOS genes in tuber mustard.

Klíčová slova:

Arabidopsis thaliana – Gene expression – Gene regulation – Plant resistance to abiotic stress – Protein structure comparison – Sequence alignment – Sequence motif analysis – Tubers


Zdroje

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2019 Číslo 11