show Abstracthide AbstractTea is the world's oldest and most important caffeine-containing beverage with immense economic, medicinal and cultural importance. We here perform de novo, full-genome sequence analysis of of Yunkang 10 (2n = 2x = 30 chromosomes), a diploid elite cultivar of C. sinensis var. assamica widely grown in Southwestern China based on sequence data from whole-genome shotgun sequencing. Together with comparative transcriptomic and phytochemical analyses for the representative Camellia species, we aim to obtain new insights into the molecular basis of the biosynthesis of the three characteristic secondary metabolites with an emphasis on tea-processing suitability and the formation of tea flavor.