Wang W, Zhang Z, Li X. Identification and expression analysis of BURP domain-containing genes in jujube and their involvement in low temperature and drought response.
BMC Genomics 2022;
23:692. [PMID:
36203136 PMCID:
PMC9541082 DOI:
10.1186/s12864-022-08907-9]
[Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/26/2022] [Indexed: 11/17/2022] Open
Abstract
Background
Plant-specific BURP domain-containing genes are involved in plant development and stress responses. However, the role of BURP family in jujube (Ziziphus jujuba Mill.) has not been investigated.
Results
In this study, 17 BURP genes belonging to four subfamilies were identified in jujube based on homology analysis, gene structures, and conserved motif confirmation. Gene duplication analysis indicated both tandem duplication and segmental duplication had contributed to ZjBURP expansion. The ZjBURPs were extensively expressed in flowers, young fruits, and jujube leaves. Transcriptomic data and qRT-PCR analysis further revealed that ZjBURPs also significantly influence fruit development, and most genes could be induced by low temperature, salinity, and drought stresses. Notably, several BURP genes significantly altered expression in response to low temperature (ZjPG1) and drought stresses (ZjBNM7, ZjBNM8, and ZjBNM9).
Conclusions
These results provided insights into the possible roles of ZjBURPs in jujube development and stress response. These findings would help selecting candidate ZjBURP genes for cold- and drought-tolerant jujube breeding.
Supplementary Information
The online version contains supplementary material available at 10.1186/s12864-022-08907-9.
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