Additional file 1: of Hydra vulgaris exhibits day-night variation in behavior and gene expression levels

List of HyDCGs lists 380 diel cycle genes in Hydra vulgaris. “Gene ID” refers to the gene number registered in the Hydra 2.0 Genome Portal ( https://research.nhgri.nih.gov/hydra/ ). The homologue descriptions and gene ontology terms are based on information in the Hydra 2.0 Genome Portal. “Cluster” represents a group of IDs determined by K-means clustering (see Fig. 4). The subsequent columns refer to the significance levels obtained from the three algorithms for rhythmicity detection (ARSER, JTK_CYCLE and empirical JTK_CYCLE) and the normalized expression levels at six time points (two biological replicates). The expression level of each gene was normalized so that the mean intensity and the standard deviation were 0.0 and 1.0, respectively. (XLS 316 kb)

本数据集收录了普通水螅（Hydra vulgaris）的380个昼夜循环基因。其中，“基因ID（Gene ID）”指在水螅2.0基因组门户（Hydra 2.0 Genome Portal，https://research.nhgri.nih.gov/hydra/）中注册的基因编号。同源基因描述及基因本体（Gene Ontology，GO）术语均基于水螅2.0基因组门户的公开信息。“聚类簇（Cluster）”代表通过K均值聚类（K-means clustering）确定的ID分组（详见图4）。后续列分别对应三种节律检测算法（ARSER、JTK_CYCLE及经验型JTK_CYCLE）得到的显著性水平，以及6个时间点的标准化表达水平（包含2次生物学重复）。所有基因的表达量均经过标准化处理，使其平均强度与标准差分别为0.0与1.0。（XLS格式，文件大小316 kb）