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

Ginger (), 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 () 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 family is available in ginger. In this study, we identified 20 members in the ginger genome, which were randomly distributed across 9 chromosomes. Based on phylogenetic analysis, these ginger were classified into two subfamilies: Class I (PCF) and Class II (CIN, CYC/TB). The classification of the identified ginger was supported by a multi-species phylogenetic tree and motif structure analysis, suggesting that the amplification of the ginger gene family occurred prior to the differentiation of angiosperms. The promoter region of ginger 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 gene among different tissues and in response to diverse abiotic stresses (drought, low temperature, heat, and salt). Our research offers a thorough examination of members within the ginger plant. This analysis greatly contributes to the understanding of how genes regulate tissue development and response to stress, opening up new avenues for further exploration in this field.