Genome-Wide Identification and Expression Analysis of the TCP Gene Family Related to Developmental and Abiotic Stress in Ginger

oleh: Yajun Jiang, Dongzhu Jiang, Maoqin Xia, Min Gong, Hui Li, Haitao Xing, Xuedong Zhu, Hong-Lei Li

Format: Article
Diterbitkan: MDPI AG 2023-09-01

Deskripsi

Ginger (<i>Zingiber officinale Roscoe</i>), a widely consumed edible and medicinal plant, possesses significant nutritional and economic value. Abiotic stresses such as drought and low temperatures can impact the growth and development of ginger. The plant-specific transcription factor Teosinte branched1/cycloidea/proliferating cell factor (<i>TCP</i>) has progressively been identified in various plants for its role in regulating plant growth and development as well as conferring resistance to abiotic stresses. However, limited information on the <i>TCP</i> family is available in ginger. In this study, we identified 20 <i>TCP</i> members in the ginger genome, which were randomly distributed across 9 chromosomes. Based on phylogenetic analysis, these ginger <i>TCP</i> were classified into two subfamilies: Class I (PCF) and Class II (CIN, CYC/TB). The classification of the identified ginger <i>TCPs</i> was supported by a multi-species phylogenetic tree and motif structure analysis, suggesting that the amplification of the ginger <i>TCP</i> gene family occurred prior to the differentiation of angiosperms. The promoter region of ginger <i>TCP</i> genes was found to contain numerous cis-acting elements associated with plant growth, development, and abiotic stress response. Among these elements, the stress response element, anaerobic induction, and MYB binding site play a dominant role in drought responsiveness. Additionally, expression pattern analysis revealed variations in the expression of ginger <i>TCP</i> gene among different tissues and in response to diverse abiotic stresses (drought, low temperature, heat, and salt). Our research offers a thorough examination of <i>TCP</i> members within the ginger plant. This analysis greatly contributes to the understanding of how <i>TCP</i> genes regulate tissue development and response to stress, opening up new avenues for further exploration in this field.