Table 1. Assembly statistics of the gonad transcriptome using the Trinity software package.

Total number of clean reads in testis library	47,333,701
Total number of clean reads in ovary library	47,229,705
GC percentage in testis library (%)	51.73
GC percentage in ovary library (%)	44.89
Total number of transcripts a	176,434
Mean length of transcripts (bp)	950
N50 length of transcripts (bp)	1,621
Total number of unigenes b	86,027
Mean length of unigenes (bp)	706
N50 length of unigenes (bp)	1,221

^a Sequences constructed from Inchworm contigs by Chrysalis module and Butterfly module.

^b The longest transcripts in the cluster units.