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Domain characteristics, classification and expression profiles in response to various abiotic stresses of four HD-Zip subfamilies in tea plant
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Domain characteristics, classification and expression profiles in response to various abiotic stresses of four HD-Zip subfamilies in tea plant
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Journal Article
Domain characteristics, classification and expression profiles in response to various abiotic stresses of four HD-Zip subfamilies in tea plant
2025
Overview
Background
The homeodomain-leucine zipper (
HD-Zip
) transcription factors play crucial roles in plant growth and development or in response to various abiotic stresses.
Results
In our research, fifty-eight
HD-Zip
genes were identified in tea plant, namely
CsHDZ01
-
58
and divided into four subfamilies, I-IV. All the CsHDZ proteins of four subfamilies harbored HD and LZ domains. Subfamily II CsHDZs contained two additional motifs, EAR and CPSCE. Two extra characteristic domains, START and SAD, were included in subfamily III and IV CsHDZs. While MEKHLA domain was distinctive in subfamily III members. All the subfamily III
CsHDZ
s were predicted to be targets of csn-miR166. A total of 24 duplicated
CsHDZ
gene pairs were identified and generated by segmental duplication in tea plant. The expression analysis indicated that most subfamily IV
CsHDZ
genes were expressed at high level in apical bud, and most subfamily III
CsHDZs
were high-expressed in stem.
CsHDZ
family genes exibited diverse expression profiles under cold, drought and salt stresses respectively. It implied that
CsHDZ
gene family may participate in regulating the response to various abiotic stresses in tea plant.
Conclusion
These results will provide an important foundation for further exploring the function and molecular mechanism of
HD-Zip
genes in response to various abiotic stresses in tea plant.
Publisher
BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
Subject
/ Biomedical and Life Sciences
/ Camellia sinensis - genetics
/ Camellia sinensis - physiology
/ cold
/ domain
/ Drought
/ Droughts
/ family
/ Gene Expression Regulation, Plant
/ Genes
/ Genomes
/ HD-Zip
/ Homeobox
/ Homeodomain Proteins - chemistry
/ Homeodomain Proteins - genetics
/ Homeodomain Proteins - metabolism
/ Leucine
/ Omics technologies and applications in horticultural crops
/ Proteins
/ Software
/ Stress, Physiological - genetics
/ Stresses
/ Tea
/ Transcription Factors - chemistry
/ Transcription Factors - genetics
