Identification and expression analysis of BURP domain-containing genes in jujube and their involvement in low temperature and drought response

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. In this study, 17 BURP genes belonging to four subfamilies were identified in jujube based on homology ana...

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Bibliographic Details
Published in:BMC genomics 2022-10, Vol.23 (1), p.1-692, Article 692
Main Authors: Wang, Wenzhu, Zhang, Zhong, Li, Xingang
Format: Article
Language:English
Subjects:
Abiotic stress
Abscisic acid
Botanical research
BURP domain-containing protein
Chromosomes
Cold
Conserved sequence
Development
Domains
Drought
Drought resistance
Flowers
Fruit development
Fruits
Gene duplication
Gene expression
Genes
Genomes
Genomics
Hardiness
Homology
Low temperature
Peptides
Phylogenetics
Plants
Plants (botany)
Proteins
Reproduction (copying)
Stresses
Transcriptomics
Trees
Ziziphus jujuba
Ziziphus jujuba Mill
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Summary: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. 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). 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.
ISSN:1471-2164
1471-2164
DOI:10.1186/s12864-022-08907-9