The maize PLASTID TERMINAL OXIDASE (PTOX) gene controls the carotenoid content of kernels.
Y. Nie, H. Wang, G. Zhang, H. Ding, B. Han, L. Liu, J. Shi, J. Du, X. Li, Y. Zhao, X. Zhang, C. Liu, J. Weng, X. Zhao, G. Pan, , Z. Zhang
This study identifies ZmPTOX1 as a key gene for carotenoid biosynthesis in maize kernels, showing that its disruption reduces carotenoid content while overexpression increases it, particularly beta-carotene.
bioRxiv · Mar 13, 2023 · PreprintPlant Biology