parallel to gunzip and merge .gz files

[vijai2007]

Hello,

I have about 99 files in the file name format:

SRRA_ATCACG_L008_R1_001.fastq.gz to SRRA_ATCACG_L008_R1_099.fastq.gz 

I want to unzip and merge them to a single fastq file.

These are from the Illumina CASAVA 1.8.1

How do I do this in GNU parallel?

Thanks

vijai