Genomic sequencing
The qualified DNA sample of C.megastoma was randomly disrupted into fragments of 300-350 bp by Covaris ultrasonic disruptor , and a small genomic DNA library was constructed by end repair, poly ( A ) addition, sequencing adapter addition, purification and PCR amplification. About 2150 bp short-read sequencing data were produced by Illumina NovaSeq 6000 platform.