An R2R3 MYB transcription factor GhMYB5: regulator of CHS expression and proanthocyanin synthesis in brown cotton (Gossypium hirsutum L.).

ABSTRACT:

Background

Cotton (Gossypium spp.) serves as a vital global crop for textile production, with naturally pigmented brown cotton has gained industrial interest due to its eco-friendly coloration. However, the molecular mechanisms underlying variation in color intensity in brown cotton fibers remain poorly characterized. In this study, we investigated the genetic and biochemical basis of fiber color differentiation in hybrid-derived cotton lines spanning white, light-brown, middle-brown, and deep-brown phenotypes.

Results

Biochemical quantification revealed significantly elevated proanthocyanidin levels in brown cotton fibers compared to those in white counterparts, with their content positively correlating with color intensity. Transcriptomic profiling identified significant a

SUBMITTER: Chen L 

PROVIDER: S-EPMC12502274 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature