16S_Saccharina japonica:healthy samples
17 healthy Saccharina japonica individuals were collected in 2015 at AilianBay, Rongcheng, China. DNA was then extracted from algal samples using a Ezup Column Bacteria Genomic DNA Purification Kit (Sangon Biotech, Shanghai, China). Next generation sequencing library preparations and Illumina HiSeq sequencing were conducted targeting the variable region 3 and 4 of the 16S rRNA gene with the universal bacterial/archaeal primers 341F/806R.