The genes crucial to carotenoid metabolism under elevated CO₂ levels in carrot (Daucus carota L.).

ABSTRACT: The CO₂ saturation point can reach as high as 1819 μmol· mol^-1 in carrot (Daucus carota L.). In recent years, carrot has been cultivated in out-of-season greenhouses, but the molecular mechanism of CO₂ enrichment has been ignored, and this is a missed opportunity to gain a comprehensive understanding of this important process. In this study, it was found that CO₂ enrichment increased the aboveground and belowground biomasses and greatly increased the carotenoid contents. Twenty genes related to carotenoids were discovered in 482 differentially expressed genes (DEGs) through RNA sequencing (RNA-Seq.). These genes were involved in either carotenoid biosynthesis or the composition of the photosystem membrane proteins, most of which were upregulated.

SUBMITTER: Song H 

PROVIDER: S-EPMC8187729 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature