Table 2. Distribution of small RNAs among different categories.

Category	S03		S04
	Number	Percentage	Number	Percentage
Genome	11,496,619	60.41	12,335,822	57.90
rRNA	647,944	3.40	841,539	3.95
scRNA	0	0.00	0	0.00
snRNA	806	0.00	988	0.00
snoRNA	393	0.00	500	0.00
tRNA	82,285	0.43	101,629	0.48
Repbase	22,174	0.12	33,733	0.16
Other	6,781,261	35.63	7,991,005	37.51
clean-reads	19,031,482	100.00	21,305,216	100.00