Genome-wide identification of APX genes in flax (Linum usitatissimum) and functional characterization of LuAPX12 in osmotic and salinity stress responses

A comprehensive genome-wide characterization of the flax APX gene family was conducted, and the function of the APX-R gene LuAPX12 under osmotic and salt stress was preliminarily validated. These results broaden our understanding of the core components of antioxidant defense in flax and provide a theoretical basis for molecular research and breeding for resistance to adverse stress in flax.