# Genome-Wide Identification of the PIP5K Gene Family in Camellia sinensis and Their Roles in Metabolic Regulation

## TL;DR

This study explores how the CsPIP5K gene family in tea plants responds to spider mite infestations, focusing on their role in phospholipid metabolism and plant resistance.

## Contribution

The study identifies specific CsPIP5K genes, particularly CsPIP5K06, linked to phospholipid metabolism and spider mite resistance in tea plants.

## Key findings

- Multiple CsPIP5K genes are associated with phospholipid metabolism in tea plants.
- CsPIP5K06 shows the strongest correlation with metabolic responses to spider mite infestation.
- qPCR and subcellular localization techniques confirmed the expression pattern and function of CsPIP5K06.

## Abstract

Spider mite infestation has a severe impact on tea growth and quality. In this study, we conducted a deep exploration of the functions and regulations of the CsPIP5K gene family using chromosomal localization and collinearity analysis. Additionally, we carefully examined the cis elements within these genes. To fully understand the metabolic response of CsPIP5K under spider mite infection, we integrated previously published metabolomic and transcriptomic data. Our analysis revealed that multiple CsPIP5K genes are associated with phospholipid metabolism, with CsPIP5K06 showing the strongest correlation. Therefore, we employed qPCR and subcellular localization techniques to determine the expression pattern of this gene and its functional location within the cell. Overall, this study not only comprehensively elucidated the characteristics, structure, and evolution of the CsPIP5K gene family but also identified several candidate CsPIP5K genes related to phospholipid biosynthesis and associated with spider mites based on previously published data. This research makes a significant contribution to enhancing the resistance of tea to spider mite and maintaining optimal tea quality.