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Table 3 Observed base occurrence at flanking position 1–10

From: Recent CR1 non-LTR retrotransposon activity in coscoroba reveals an insertion site preference

  

position

 

Nucleotide

1

2

3

4

5

6

7

8

9

10

11

N = 11

A

1

2

3

2

1

3

3

1

4

3

 

T

10 3

8

2

7

3

4

4

4

1

4

 

C

0

1

6

1

5

2

1

4

2

4

 

G

0

0

0

1

2

2

3

2

4

0

 

expected A/T2

3.41

         
 

expected G/C

2.09

         
  

position

 

Nucleotide

1

2

3

4

5

6

7

8

9

10

2

N = 14

A

6

6

2

3

1

2

1

5

7

3

 

T

7

5

6

5

6

5

3

5

2

3

 

C

1

1

6

3

2

1

7

3

1

5

 

G

0

2

0

3

5

6

3

1

4

3

 

expected A/T

4.34

         
 

expected G/C

2.66

         
  

position

 

Nucleotide

1

2

3

4

5

6

7

8

9

10

3 and 4

N = 4

A

0

3

1

1

1

2

2

1

0

0

 

T

3

0

1

3

2

1

1

1

1

2

 

C

0

1

1

0

0

1

1

0

2

0

 

G

1

0

1

0

1

0

0

2

1

2

 

expected A/T

1.24

         
 

expected G/C

0.76

         
  1. 1Indicates the number of octomer repeats in each set of CR1 elements.
  2. 2Expected nucleotide frequencies were based on a 38% GC content and a 62% AT content.
  3. 3Bold indicates significant deviation from expected frequencies (P < 0.01).
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BMC Genomics

ISSN: 1471-2164

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