title: Attached bacteria in Microcystis colonies with various sizes.
design: The DNA were amplified using the primers 338F (5′-ACTCCTACGGGAGGCAGCA-3′) and 806R (5′-GGAC TACHVGGGTWTCTAAT-3′). PCR products were purified with the AxyPrepDNA gel purification kit (Axygen Biosciences,Union City, CA, U.S.). Purified amplicons were pooled in equimolar and then subject to Illumina MiSeq sequencing.