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Table 1 Sequencing and mapping results for the four chicken breeds analyzed for structural variation

From: Structural variation in the chicken genome identified by paired-end next-generation DNA sequencing of reduced representation libraries

Sequencing

Mapping

Breed

Raw reads

Paired l32q201

Concordant2%

Neither end3%

One end4%

Diff chr5%

Too short6

Too long7

Relative orientation8

Brown egg layer

31.61

23.59

76.14

23.22

0.52

0.02

470

22547

549

White egg layer

29.70

21.84

73.30

25.81

0.64

0.14

1019

22058

1872

Broiler 1

34.82

24.83

78.26

21.14

0.48

0.01

2108

21209

335

Broiler 2

32.28

20.64

76.60

22.64

0.54

0.07

7388

22058

1030

  1. Paired-end sequencing of RRLs resulted in the indicated number of raw reads per breed. Sequencing read counts are in millions. Mapping percentages are relative to Paired l32q20.
  2. 1Paired l32q20 = paired reads had the RRL restriction tag trimmed to 32 bp and were filtered for a minimum per base quality of 20;
  3. 2Concordant = both reads of a read pair mapped to the expected orientation relative to each other and in the expected distance according to the RRL size range;
  4. 3Neither end = none of the reads of a read pair mapped to the reference;
  5. 4One end = only one read of a read pair was mapped;
  6. 5Diff chr = both reads of a read pair mapped, but to different chromosomes;
  7. 6Too short = both reads of a read pair mapped to the expected orientation relative to each other but at a closer distance than expected based on the RRL size range;
  8. 7Too long = both reads of a read pair mapped at a larger distance from each other than expected;
  9. 8Relative orientation = reads of a read pair mapped in another orientation relative to each other than expected based on the reference chicken genome.