a16-mers were sorted into three groups (GI, GII and GIII) using a grouping algorithm (Figure S3 and Figure S4). bSequence of the most common 16-mer from each group. cEach GI, GII and GIII sequence eit
GCA, GCP respectively represent the content of foregut and hindgut in the five sapmpled sea cucumbers. For example, GCA1 represents the foregut content in the sea cucumber No. 1. SED stands for the fo
