Identification of the histone acetyltransferase gene family in the genome.

As the most effective therapeutic drug for malaria, artemisinin can only be extracted from L., which is sensitive to the surrounding growing habitat. Histone acetyltransferases (HATs) contain acetyl groups, which modulate mRNA transcription and thereby regulate plant environmental adaptation. Comprehensive analyses of s have been performed in many plants, but systematic identification of s in medicinal plants is lacking. In the present study, we identified s and characterized these genes into four classes according to their conserved protein structures. According to the phylogenetic analysis results, potential functions of genes from , , and were found. According to our results, has a highly conserved evolutionary history and is rich in highly variable regions; thus, has become a comparatively ideal object of medical plant identification and systematic study. Moreover, motifs commonly present in histone acetyltransferases in the genome may be associated with functional s. s appear to be related to gene-specific functions. AaHATs are regulated by -elements, and these genes may affect phytohormone responsiveness, adaptability to stress, and developmental growth. We performed expression analyses to determine the potential roles of s in response to three environmental stresses. Our results revealed a cluster of that potentially plays a role in the response of plants to dynamic environments.