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Identification and characterization of HD-Zip genes reveals their roles in stresses responses and facultative crassulacean acid metabolism in Dendrobium catenatum
Huang,Hui; Wang,Hui; Tong,Yan; Wang,Yu-Hua
2021
Source PublicationSCIENTIA HORTICULTURAE
ISSN0304-4238
Volume285Pages:110058
AbstractDendrobium catenatum possesses special survival strategy including facultative crassulacean acid metabolism (CAM) to cope with various environmental stresses. The homeodomain-leucine zipper (HD-Zip) proteins had been reported to play essential roles in adaption to the environment. However, the role of the HD-Zip gene family in stresses responses and drought-induced facultative CAM in D. catenatum was largely unknown. In this study, 35 HD-Zip genes were identified in D. catenatum (DcHDZs), and were phylogenetically grouped into four subfamilies, which was further supported by the analysis of their conserved motifs and structures. Expression profile analysis of DcHD-Zip genes based on public transcriptomic data and qRT-PCR showed that most DcHD-Zip genes showed biased expression in leaf and flower than in stem and root. Three DcHD-Zip genes denominated as DcHDZ04, DcHDZ20 and DcHDZ22 belong to HD-Zip I and II subfamilies, were induced significantly under high light, low light, salt and heat stresses. Moreover, we found that the plant hormone biosynthesis and signal transduction played a vital role in facultative CAM of D. catenatum under drought, especially ABA. Nine DcHD-Zip genes were identified as DEGs and showed close relationship with several genes involved in plant hormone biosynthesis and signal transduction, suggesting their important roles in drought-induced facultative CAM of D. catenatum. This systematic analysis provided a foundation for further functional characterization of HD-Zip genes and also revealed an important regulation mechanism of facultative CAM in D. catenatum.
KeywordHomeodomain-leucine zipper (HD-Zip) Gene expression Transcriptomic analysis Dendrobium catenatum Stresses GENOME-WIDE CHARACTERIZATION TRANSCRIPTION FACTORS HOMEOBOX GENES WATER-DEFICIT EXPRESSION ANALYSIS PROVIDES INSIGHTS CLASS-I ARABIDOPSIS FAMILY OFFICINALE
DOI10.1016/j.scienta.2021.110058
WOS IDWOS:000654030900001
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Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/73235
Collection中国科学院昆明植物研究所
Affiliation1.Chinese Acad Sci, Kunming Inst Bot, Yunnan Key Lab Wild Plant Resources, Kunming 650201, Yunnan, Peoples R China
2.Chinese Acad Sci, Bioinnovat Ctr DR PLANT, Kunming Inst Bot, Kunming 650201, Yunnan, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Huang,Hui,Wang,Hui,Tong,Yan,et al. Identification and characterization of HD-Zip genes reveals their roles in stresses responses and facultative crassulacean acid metabolism in Dendrobium catenatum[J]. SCIENTIA HORTICULTURAE,2021,285:110058.
APA Huang,Hui,Wang,Hui,Tong,Yan,&Wang,Yu-Hua.(2021).Identification and characterization of HD-Zip genes reveals their roles in stresses responses and facultative crassulacean acid metabolism in Dendrobium catenatum.SCIENTIA HORTICULTURAE,285,110058.
MLA Huang,Hui,et al."Identification and characterization of HD-Zip genes reveals their roles in stresses responses and facultative crassulacean acid metabolism in Dendrobium catenatum".SCIENTIA HORTICULTURAE 285(2021):110058.
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