Table 1 Summary of Illumina transcriptome sequencing and assembly for Taihangia rupestris flower

Number of raw reads

22,638,962

22,588,764

22,645,959

22,932,502

Number of clean reads

21,136,736 (93.36%)

20,963,888 (92.81%)

21,096,120 (93.16%)

21,399,682 (93.32%)

84,596,426

Number of base pairs

5,325,126,434

5,281,720,198

5,314,989,939

5,391,407,889

21,313,244,460

GC (%)

46.42

46.74

46.29

46.54

46.50

Q20 (%)

97.41

97.34

97.39

97.44

97.40

Q30 (%)

91.47

91.27

91.42

91.59

91.43

Number of contigs

2,247,974

2,222,351

2,178,823

2,292,464

8,230,709

Number of transcripts

117,759

115,373

102,649

110,462

167,441

Total unigenes generated

42,630

41,419

38,764

39,857

59,064

N₅₀ length (bp)

1,541

1,561

1,570

1,611

1,594

Average unigene length (bp)

855

878

886

905

840