College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China.
Genes (Basel). 2023 Apr 16;14(4):925. doi: 10.3390/genes14040925.
Plant-specific TCP transcription factors regulate several plant growth and development processes. Nevertheless, little information is available about the TCP family in orchardgrass ( L.). This study identified 22 transcription factors in orchardgrass and determined their structure, phylogeny, and expression in different tissues and developmental stages. The phylogenetic tree classified the gene family into two main subfamilies, including class I and II supported by the exon-intron structure and conserved motifs. The 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, possibly regulates tillering and flowering time. Additionally, several stress treatments upregulated and , indicting their potential effects regarding regulating responses to the respective stress. This research offers a valuable basis for further studies of the gene family in other Gramineae and reveals new ideas for increasing gene utilization.
植物特有的 TCP 转录因子调控着几种植物生长和发育过程。然而，关于果园草（L.）中的 TCP 家族，我们知之甚少。本研究在果园草中鉴定了 22 个转录因子，并确定了它们在不同组织和发育阶段的结构、系统发育和表达。系统发育树将基因家族分为两个主要亚家族，包括由外显子-内含子结构和保守基序支持的 I 类和 II 类。启动子区域包含与激素、生长和发育以及应激反应相关的各种顺式元件，包括 MBS（干旱诱导）、circadian（昼夜节律）和 TCA-element（水杨酸反应性）。此外，可能调节分蘖和开花时间。此外，几种应激处理上调了和，表明它们在调节对各自应激的反应方面可能具有潜在的作用。这项研究为在其他禾本科植物中进一步研究基因家族提供了有价值的基础，并为提高基因利用率提供了新的思路。
