Abstract: With the development of high throughput sequencing technology,large volumes of DNA data are being genera-ted.The FASTQ format is widely used to store DNA sequence.If the DNA sequence reads in FASTQ format can be compressed,the storage space will be saved efficiently.One of the DSRC advantages is the high compression ratio,therefore parallel DSRC algorithm will increase the efficiency of compressing the DNA sequence reads in FASTQ format.We implemented the parallel DSRC algorithm based on Pthreads,and the experimental results indicate that the para-llel DSRC algorithm gets 3.5 speedup when four threads are used.

Key words: FASTQ,Data compression,DSRC,Pthreads