Grassland Agri-Husbandry Research Center, College of Grassland Science, Qingdao Agricultural University, Qingdao, Shandong, China.
Plant Signal Behav. 2022 Dec 31;17(1):2075158. doi: 10.1080/15592324.2022.2075158.
The plant-specific transcription factor plays important roles in plant development and environment adaptation. and , the C4 model plants, can grow on drought or arid soils. However, there is no systematic information about the genomic dissection and the expression of genes. A total of 22 genes were both identified from and genomes. They all contained bHLH domain and were grouped into three main clades (PCF, CIN, and CYC/TB1). The genes in the same clades shared similar gene structures. Cis-element in the promoter regions were analyzed and associated with hormones and stress responsiveness. Ten genes were predicted to be targets of miRNA319. Moreover, gene ontology analysis indicated three Si and three genes were involved in the regulation of shoot development, and were clustered together with tillering controlling gene . The genes were differentially expressed in the organs, but orthologs shared similar expression patterns. Ten members were downregulated under drought or salinity stresses, indicating they may play regulatory roles in abiotic stresses. The study provides detailed information regarding genes, providing the theoretical basis for agricultural applications.
植物特有的转录因子在植物发育和环境适应中发挥重要作用。 和 ，C4 模式植物，可以在干旱或干旱的土壤中生长。然而，关于基因组剖析和 基因的表达还没有系统的信息。总共从 和 基因组中鉴定出了 22 个 基因。它们都含有 bHLH 结构域，并分为三个主要的分支（PCF、CIN 和 CYC/TB1）。同一分支中的 基因具有相似的基因结构。分析了 启动子区域的顺式元件，并与激素和应激反应相关联。预测了 10 个 基因是 miRNA319 的靶标。此外，基因本体论分析表明，三个 Si 和三个 基因参与了芽发育的调控，并且 与分蘖控制基因 聚类在一起。 基因在器官中差异表达，但 同源物具有相似的表达模式。在干旱或盐胁迫下，有 10 个 成员下调表达，表明它们可能在非生物胁迫中发挥调节作用。该研究提供了关于 基因的详细信息，为农业应用提供了理论基础。
