Genome assembly and annotations of Yoshiicerus persimilis

Gene duplication is an important mechanism for organism evolution and adaptation. Whole-genome duplication (WGD) is considered as a major driver of species diversification. It has been reported that ancient WGD events occurred during the evolution of basal hexapod; the inferred pattern based on gene-tree and molecular-clock analyses remains challenging. Therefore, the lack of chromosome-scale genome has limited the characterization of WGD directly upon the synteny evidence. In order to get direct evidence from intra-chromosome synteny, we constructed the first chromosome-level genome of basal hexapod (Yoshiicerus persimilis, Collembola). We observed only large-scale gene duplications in chromosome 1, but not within/among other five chromosomes. These duplications were involved in proliferation and growth.