A multi-omics database for the biological study of Osmanthus fragrans

Osmanthus fragrans Lour. is a well-known aromatic plant widely used as a food ingredient due to its unique floral fragrance and bioactive compounds. To fully utilize O. fragrans resources, we established an O. fragrans multi-omics database called the O. fragrans Information Resource (OfIR: http://yanglab.hzau.edu.cn/OfIR/home/ ). OfIR is a convenient and comprehensive multi-omics database that efficiently integrates phenotype and genetic variation from 127 O. fragrans cultivars, and provides many easy-to-use analysis tools, including primer design, sequence extraction, multi-sequence alignment, GO and KEGG enrichment analysis, variation annotation, and electronic PCR. Two case studies were used to demonstrate its power to mine candidate genetic variation sites or genes associated with specific traits or regulatory networks. In summary, the multi-omics database OfIR provides a convenient and user-friendly platform for researchers in mining functional genes and contributes to the genetic breeding of O. fragrans.