Integrated transcriptomics and metabolomics analyses reveal key pathway responses during the grain-filling stage in maize under waterlogging stress.

ABSTRACT: Crop tolerance to waterlogging significantly influences survival and productivity under waterlogging conditions. Elucidating the molecular mechanisms underlying waterlogging tolerance could facilitate the development of resilient crop varieties through breeding. This study conducted a comparative analysis of the physiological, transcriptional, and metabolic responses of a waterlogging-tolerant maize genotype Guidan162 (GD) and a waterlogging-sensitive genotype Zhaofeng 588 (ZF) during the grain filling stage. Phenotypic and physiological characteristics indicated that the leaf morphology of maize plants is affected, while the levels of peroxidase (POD) and catalase (CAT) and proline significantly increase under waterlogging stress. Transcriptomic analysis identified 3280 and 2260 different

SUBMITTER: Zhou B 

PROVIDER: S-EPMC12861905 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature