New insights into the transcription factor regulatory networks driving peel coloration under hormone induction analyzed by transcriptomics and metabolomics in tangor 'Murcot'.

ABSTRACT:

Introduction

Fruit color is a crucial quality factor strongly influencing consumer preference for citrus. The coloration of citrus fruit is primarily determined by carotenoids, which produce a range of hues. Gibberellic acid (GA) and ethylene are critical in fruit coloration during the ripening process. Nevertheless, the underlying mechanisms remain poorly understood.

Methods

The present study utilized transcriptomic and metabolomic analyses to investigate the molecular regulatory mechanisms affecting peel pigment metabolism in tangors (Citrus reticulata Blanco×Citrus sinensis L. Osbeck) following GA and ethephon (ETH) treatments.

Results and discussion

Collectively, our findings indicated that GA inhibits chlorophyll degradation and the accumulation of

SUBMITTER: Chen Y 

PROVIDER: S-EPMC11876184 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature