**1. Introduction**

In recent years, plant genomics has made significant progress following the development of biotechnology. Based on traditional genetics, functional genomics covers research on the genome, transcriptome, proteome, metabolome, bioinformatics, and other interdisciplinary disciplines. Researching many genes in the genome and their expression reveals the gene function, subcellular localization, and interaction, which provides a more systematic and comprehensive study means for the in-depth understanding of plants [1,2]. At the same time, crop breeding is crucial for agricultural development. Many high-yield and environmental adaptability crop varieties have been bred using plant genomics and gene diversity [3]. Here, we summarized some genomics studies of different species recently published in *IJMS* in the hopes of contributing to the advancement of crop breeding.
