Table 1 Summary of genome assembly and annotation of B. oleracea.

From: The Brassica oleracea genome reveals the asymmetrical evolution of polyploid genomes

B. oleracea genome assembly

 

N90

N50

Longest

Total size

Contig size (bp)

3,527

26,828

199,461

502,114,421

Contig number

22,669

5,425

  
 

Total number(>2 kb): 27,351

Scaffold size (bp)

258,906

1,457,055

8,788,225

539,907,250

Scaffold number

388

224

Anchored to chr. 72%

 
 

Total number(>2 kb): 1,809

B. oleracea genome annotation

 

B. oleracea

 

In the assembly

In WG short reads *

 

Size (bp)

Copy number

% assembly

 

Retrotransposon

105,755,173

108,948

22.13

23.60

DNA transposon

79,675,583

170,500

16.67

12.71

Total

185,430,756

279,448

38.80

36.31

 

Gene models

Gene space covered §

Annotated

Supported by ESTs

Protein-coding genes

45,758

98%

91.6%

99.0%

 

Average transcript length

Average coding length

No. of average exons

No. of alternative splicing variants

 

1,762 bp

1,037 bp

4.6

30,932

Non-coding RNA

miRNA

tRNA

rRNA

snRNA

Copy number

336

1,425

553

1,442

Average length (bp)

119

75

166

110

  1. *WG, whole genome, 20 × coverage reads were randomly sampled from all the genomic short reads libraries.
  2. The copy number of TEs was from the RepeatMasker results.
  3. The ungapped regions were used to detect the percentage of TEs in the assembly. TE sizes are from the ungapped regions of B. oleracea 477,847,347 bp.
  4. §Estimated by public Brassica ESTs and RNA-seq data.