Evolution of gene regulatory network of C₄ photosynthesis in the genus Flaveria reveals the evolutionary status of C₃-C₄ intermediate species.

ABSTRACT: C₄ photosynthesis evolved from ancestral C₃ photosynthesis by recruiting pre-existing genes to fulfill new functions. The enzymes and transporters required for the C₄ metabolic pathway have been intensively studied and well documented; however, the transcription factors (TFs) that regulate these C₄ metabolic genes are not yet well understood. In particular, how the TF regulatory network of C₄ metabolic genes was rewired during the evolutionary process is unclear. Here, we constructed gene regulatory networks (GRNs) for four closely evolutionarily related species from the genus Flaveria, which represent four different evolutionary stages of C₄ photosynthesis: C₃ (F. robusta), type I C₃-C₄ (F. 

SUBMITTER: Amy Lyu MJ 

PROVIDER: S-EPMC9860191 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature