Table 1. Throughput and quality of strand-specific RNA-seq of the five Medicago sativa libraries.

Library ID	Clean Reads	Clean Base	Clean GC%	Clean Q20%	Total mapped reads (%)	Unigene
C0	52,761,700	7.83G	42.46	98.15	32,362,486(61.33)	252,268
C48	54,525,692	8.09G	42.76	97.99	31,693,092(58.13)	243,292
C96	60,510,310	8.99G	42.49	98.25	36,841,382(60.88)	255,256
Pb48	62,584,610	9.31G	43.08	98.27	39,316,818(62.82)	265,110
Pb96	52,617,432	7.82G	42.83	98.13	31,888,382(60.6)	232,083