Table 1 Distribution and frequency of single nucleotide polymorphisms (SNPs) identified using the genotyping-by-sequencing.

From: High-density genetic map and genome-wide association studies of aesthetic traits in Phalaenopsis orchids

Chromosome

Chromosome length (bp)

Number of SNP in chromosome

Average distance between SNPs (bp)

1

258,396,435

24,121

10,713

2

224,508,944

13,802

16,266

3

70,575,877

8805

8015

4

67,241,588

6726

9997

5

49,315,034

8784

5614

6

39,338,091

7383

5328

7

36,994,609

5184

7136

8

35,905,232

4584

7833

9

30,537,433

3428

8908

10

29,494,005

3861

7639

11

25,713,836

2204

11,667

12

26,363,526

3707

7112

13

25,495,552

2286

11,153

14

22,079,116

2000

11,040

15

20,647,704

3648

5660

16

16,685,943

5094

3276

17

11,213,544

3806

2946

18

9,947,944

2458

4047

19

4,661,377

1636

2849

Total

1,005,115,790

113,517

8854