The Current Status and Prospects of the Application of Omics Technology in the Study of .

Elm () species are important components of forest resources with significant ecological and economic value. As tall hardwood trees that are drought-resistant, poor-soil-tolerant, and highly adaptable, species are an excellent choice for ecologically protected forests and urban landscaping. Additionally, the bioactive substances identified in the fruits, leaves, bark, and roots of have potential applications in the food and medical fields and as raw materials in industrial and cosmetic applications. However, the survival of species in the natural environment has been threatened by recurrent outbreaks of Dutch elm disease, which have led to the death of large numbers of trees. In addition, severe damage to the natural habitats of some species is driving their populations to extinction. Omics technology has become an important tool for the collection, protection, and biological characteristic analysis of species and their resources due to its recent advances. This article summarizes the current research and application status of omics technology in . The remaining problems are noted, and future research directions are proposed. Our review is aimed at providing a reference for resource conservation of and for scientific research into this genus.