Genome-Wide Identification, Characterization, and Expression of TCP Genes Family in Orchardgrass

作者：Cheng Wang, Guangyan Feng, Xiaoheng Xu, Linkai Huang, Gang Nie, Dandan Li, Xinquan Zhang · 发表于：Genes · 年份：2023 · DOI：10.3390/genes14040925 · 被引用次数：13 · 研究领域：Plant Molecular Biology Research、Plant tissue culture and regeneration、Plant Gene Expression Analysis

Plant-specific TCP transcription factors regulate several plant growth and development processes. Nevertheless, little information is available about the TCP family in orchardgrass (Dactylis glomerata L.). This study identified 22 DgTCP transcription factors in orchardgrass and determined their structure, phylogeny, and expression in different tissues and developmental stages. The phylogenetic tree classified the DgTCP gene family into two main subfamilies, including class I and II supported by the exon–intron structure and conserved motifs. The DgTCP promoter regions contained various cis-elements associated with hormones, growth and development, and stress responses, including MBS (drought inducibility), circadian (circadian rhythms), and TCA-element (salicylic acid responsiveness). Moreover, DgTCP9 possibly regulates tillering and flowering time. Additionally, several stress treatments upregulated DgTCP1, DgTCP2, DgTCP6, DgTCP12, and DgTCP17, indicting their potential effects regarding regulating responses to the respective stress. This research offers a valuable basis for further studies of the TCP gene family in other Gramineae and reveals new ideas for increasing gene utilization.