Table 2. Quality evaluation for degradome sequencing data.

Sample	9311-2x (number)	9311-2x (ratio)	9311-4x (number)	9311-4x (ratio)	Total (number)	Total (ratio)
Raw reads	22150505	/	20490420	/	42640925	/
Reads < 15 nt after removing 3 adapters	60903	0.27%	60601	0.30%	121504	0.28%
Mappable reads	22089602	99.73%	20429819	99.70%	42519421	99.72%
Unique raw reads	5275288	/	4704761	/	8797333	/
Unique reads<15nt after removing 3 adapters	25777	0.49%	24106	0.51%	43977	0.50%
Unique mappable reads	5249511	99.51%	4680655	99.49%	8753356	99.50%
Transcript mapped reads	2579573	11.65%	5143435	25.10%	7723008	18.11%
Unique transcript mapped reads	395259	7.49%	686180	14.58%	950717	10.81%
Number of input transcripts	43891	/	43891	/	43891	/
Number of covered transcripts	17679	40.28%	19843	45.21%	21106	48.09%