Research advances in carotenoid metabolism of citrus fruit
Citrus fruit color is an important external indicator of citrus commercial value,and carotenoids are the main pigment of mature citrus fruit.The composition of carotenoids in citrus fruit is complex and varies greatly among different varieties,growth stages,and tissues,resulting in different colors of citrus fruit.This paper reviewed the carotenoids profile,metabolic pathways,key genes of synthesis,environmental factors and transcription factors affecting carotenoids metabolism in citrus fruit,and looks forward to the directions for further research on carotenoids in citrus fruit,in order to provide reference for relevant researchers.