WRKY transcription factors are a large family of plant proteins with a conserved DNA-binding domain. Despite their diversity, WRKY genes originated in early eukaryotes and are found in various organisms, including plants, fungi, and some animals. The WRKY domain contains a conserved WRKY motif and a zinc-finger structure, enabling specific DNA binding. WRKY factors regulate gene expression in response to environmental signals and developmental processes. Recent studies have shown that WRKY genes are involved in plant defense against pathogens, stress responses, and development. For example, WRKY genes are upregulated in response to wounding, pathogen infection, and abiotic stresses. Some WRKY factors, such as AtWRKY22 and AtWRKY29, are involved in MAPK signaling pathways that mediate resistance to pathogens. WRKY70 plays a central role in integrating signals from salicylic acid (SA) and jasmonic acid (JA) in defense responses. WRKY factors also regulate plant development, such as trichome formation and seed coat development. The WRKY family has expanded in plants, possibly due to environmental pressures, and some WRKY genes are involved in hormone signaling and senescence. However, the exact functions of many WRKY genes remain unclear. Genetic approaches, such as knockout lines and overexpression, have been used to study WRKY functions, but the results are often complex due to functional redundancy. Chromatin immunoprecipitation (ChIP) and microarray analyses are being used to identify WRKY target genes and understand their in vivo functions. Overall, WRKY factors are important regulators of plant responses to biotic and abiotic stresses, as well as developmental processes. Further research is needed to fully understand their roles and mechanisms of action.WRKY transcription factors are a large family of plant proteins with a conserved DNA-binding domain. Despite their diversity, WRKY genes originated in early eukaryotes and are found in various organisms, including plants, fungi, and some animals. The WRKY domain contains a conserved WRKY motif and a zinc-finger structure, enabling specific DNA binding. WRKY factors regulate gene expression in response to environmental signals and developmental processes. Recent studies have shown that WRKY genes are involved in plant defense against pathogens, stress responses, and development. For example, WRKY genes are upregulated in response to wounding, pathogen infection, and abiotic stresses. Some WRKY factors, such as AtWRKY22 and AtWRKY29, are involved in MAPK signaling pathways that mediate resistance to pathogens. WRKY70 plays a central role in integrating signals from salicylic acid (SA) and jasmonic acid (JA) in defense responses. WRKY factors also regulate plant development, such as trichome formation and seed coat development. The WRKY family has expanded in plants, possibly due to environmental pressures, and some WRKY genes are involved in hormone signaling and senescence. However, the exact functions of many WRKY genes remain unclear. Genetic approaches, such as knockout lines and overexpression, have been used to study WRKY functions, but the results are often complex due to functional redundancy. Chromatin immunoprecipitation (ChIP) and microarray analyses are being used to identify WRKY target genes and understand their in vivo functions. Overall, WRKY factors are important regulators of plant responses to biotic and abiotic stresses, as well as developmental processes. Further research is needed to fully understand their roles and mechanisms of action.