Genome-Wide Identification of GLK Family Genes in Phoebe bournei and Their Transcriptional Analysis Under Abiotic Stresses

GOLDEN2-LIKE (GLK) transcription factors are crucial regulators of chloroplast development and stress responses in plants. In this study, we investigated the GLK gene family in Phoebe bournei (Hemsl.) Yen C. Yang, a near-threatened species important for forestry and wood utilization in China. We ide...

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Bibliographic Details
Published inInternational journal of molecular sciences Vol. 26; no. 6; p. 2387
Main Authors Lian, Yiran, Peng, Liang, Shi, Xinying, Zheng, Qiumian, Fan, Dunjin, Feng, Zhiyi, Liu, Xiaomin, Ma, Huanhuan, Cao, Shijiang, Chang, Weiyin
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 07.03.2025
MDPI
Subjects
Abiotic stress
Binding sites
Biosynthesis
Chlorophyll
Chloroplasts
Chromosomes
DNA binding proteins
Droughts
Endangered species
Gene expression
Gene Expression Profiling
Gene Expression Regulation, Plant
Genes
Genetic aspects
Genetic research
Genetic transcription
Genome, Plant
Genomes
Genomics
Multigene Family
Photosynthesis
Phylogenetics
Phylogeny
Plant growth
Plant Proteins - genetics
Plant Proteins - metabolism
Proteins
Stress, Physiological - genetics
Transcription factors
Transcription Factors - genetics
Transcription Factors - metabolism
Wildlife conservation
China
chlorophyll
P. bournei
gene family
GLK
abiotic stress
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Summary:GOLDEN2-LIKE (GLK) transcription factors are crucial regulators of chloroplast development and stress responses in plants. In this study, we investigated the GLK gene family in Phoebe bournei (Hemsl.) Yen C. Yang, a near-threatened species important for forestry and wood utilization in China. We identified 61 PbGLK genes which were classified into seven subfamilies. Our analyses of their phylogenetic relationships, gene structures, and chromosomal distribution revealed diverse characteristics. Expression profiling under different tissues and abiotic stresses showed that PbGLK25 and PbGLK30 were particularly responsive to drought, heat, light, and shade stresses, with significant upregulation. These findings highlight the potential role of PbGLK genes in stress adaptation and provide insights for the genetic improvement of P. bournei.
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ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms26062387