Fatty acid (FA) composition is the typical quantitative trait in oil seed crops. of which study is not only closely related to oil content. but is also more critical for the quality improvement of seed oil. The double haploid (DH) population named KN with a high density SNP linkage map was applied for quantitative trait loci (QTL) analysis of FA composition in this study. https://jalyttlers.shop/product-category/mortar/