Table 3 Transcriptome quality control by RNA-seq reads remapping.

From: Cultivar-specific transcriptome and pan-transcriptome reconstruction of tetraploid potato

Mapping statistics/genotype

Désirée’

PW363’

Rywal’

Number of input reads

177,149,132

52,171,015

342,767,035

Average input read length

178

179

199

UNIQUE READS:

Uniquely mapped reads number

64,507,790

18,416,487

206,003,021

Uniquely mapped reads# %

36%

35%

60%

Average mapped length

175

176

196

Number of splices*: Total

496,170

267,268

1,700,235

Number of splices*: Annotated (sjdb)

0

0

0

Number of splices*: GT/AG

258,208

105,551

1,162,885

Number of splices*: GC/AG

10,749

5,693

79,495

Number of splices*: AT/AC

1,486

2,192

1,840

Number of splices*: Non-canonical

225,727

153,832

456,015

Mismatch rate per base %

0.50%

0.53%

0.59%

Deletion rate per base

0.03%

0.03%

0.03%

Deletion average length

2.72

2.53

3.02

Insertion rate per base

0.02%

0.02%

0.03%

Insertion average length

1.93

1.86

1.91

MULTI-MAPPING READS:

Number of reads mapped to multiple loci

98,694,222

29,366,122

108,669,657

% of reads mapped to multiple loci#

56%

56%

32%

Number of reads mapped to too many loci

4,652,918

1,555,704

1,541,238

% of reads mapped to too many loci

2.63%

2.98%

0.45%

UNMAPPED READS:

% of reads unmapped: too many mismatches

0%

0%

0%

% of reads unmapped: too short

5.25%

5.43%

7.75%

% of reads unmapped: other

0%

0%

0%

CHIMERIC READS:

Number of chimeric reads

0

0

0

% of chimeric reads

0%

0%

0%

  1. Illumina paired-end reads used for generating assemblies were mapped back to the corresponding cultivar specific transcriptomes using STAR.
  2. *Number of reads crossing supposed splice sites.
  3. ‘Initially constructed transcriptomes (prior to filtering steps).
  4. #Relevant % of mapped reads: % of uniquely mapped reads + % of reads mapped to multiple loci.