Toward repositioning Allium vegetable crops as global commodities: opportunities and challenges for future application of omics and phytomedomics platforms to crop improvement

摘要

Allium cepa (bulb onion, shallot) is a widely cultivated species that contains chemical compounds with culinary and therapeutic uses. A complete set of A. fistulosum-A. cepa monosomic addition lines has been used to obtain chromosomal-based genomic information of A cepa. To go against a headwind without whole genome sequencing data, an F2 mapping population was produced from a single Fi plant between shallot and bulb onion doubled haploid (DH) lines, which could be used for constructing an A. cepa ultra-high density genetic linkage map via the use of numerous SNP markers generated by transcriptome-based genotyping. Furthermore, an advanced metabolomics technique was utilized as a tool for characterizing phytochemical variations in the genetic materials mentioned above. This will help to develop the capability and plant materials to support metabolomics-informed biomedical studies of whole plants or extracts, as well as enable the detection of associations between phytochemical content, gene expression, and specific genome regions, along with a next generation functionality assessment method. While strengthening the position of Allium vegetables as global commodities, this academic approach will contribute greatly to solving the problem of nutrientdeficiency throughout the world.