title: DNA-sequence of Skeletonema species
design: After evaluating the DNA quality, 0.2 g genomic DNA was fragmented by sonication (Covaris S220, Covaris, USA) to the length of 350 bp. Then DNA fragments were polished, A-tailed, and ligated with adapters for Illumina sequencing, followed by PCR amplification. The PCR products were purified by AMPure XP system (Beckman Coulter, Beverly, USA), and qualified libraries were sequenced using NovaSeq PE150 (Illumina, San Diego, CA, USA) at Novogene (Beijing, China).