Table 5 Pairwise Kimura distances in % and standard deviations between groups A-J and published symbiont sequences from Oligobrachia mashikoi and Sclerolinum contortum. Accession numbers (#) of published sequences are listed for the readers’ reference

Group A

7.38 ± 0.17

7.12 ± 0.18

7.14 ± 0.18

7.37 ± 0.18

8.61 ± 0.18

7.60 ± 0.18

5.42 ± 0.17

8.39 ± 0.18

11.35 ± 0.19

Group B

7.45

7.19

7.21

7.97

8.68

7.67

5.95

8.46

10.92

Group C

30.23 ± 0.16

30.78 ± 0.16

31.24 ± 0.17

30.06 ± 0.16

32.32 ± 0.17

29.35 ± 0.16

29.56 ± 0.16

30.05 ± 0.16

35.28 ± 0.18

Group D

7.85 ± 0.15

7.59 ± 0.15

7.61 ± 0.15

8.38 ± 0.15

9.10 ± 0.15

8.07 ± 0.15

6.35 ± 0.14

8.86 0.15

11.34 ± 0.16

Group E

7.86 ± 0.18

8.62 ± 0.18

7.62 ± 0.18

8.39 ± 0.18

9.10 ± 0.18

9.12 ± 0.18

7.36 ± 0.18

8.88 ± 0.18

11.86 ± 0.19

Group F

8.04 ± 0.22

8.80 ± 0.22

7.79 ± 0.22

8.56 ± 0.22

9.28 ± 0.22

9.29 ± 0.22

7.53 ± 0.22

9.05 ± 0.22

12.03 ± 0.23

Group G

20.42 ± 0.17

20.49 ± 0.17

20.14 ± 0.17

20.81 ± 0.18

20.17 ± 0.17

19.86 ± 0.17

20.56 ± 0.17

21.65 ± 0.18

20.95 ± 0.17

Group H

7.54 ± 0.25

8.30 ± 0.36

7.30 ± 0.25

8.06 ± 0.25

8.77 ± 0.26

8.79 ± 0.37

7.04 ± 0.36

8.55 ± 0.26

11.52 ± 0.27

Group I

7.51 ± 0.15

8.27 ± 0.15

7.27 ± 0.15

8.03 ± 0.15

8.74 ± 0.15

8.76 ± 0.15

7.01 ± 0.14

8.52 ± 0.15

11.48 ± 0.16

Group J

7.63 ± 0.11

7.36 ± 0.11

7.39 ± 0.11

8.15 0.11

8.86 ± 0.11

7.85 ± 0.11

6.13 ± 0.11

8.64 ± 0.11

11.10 ± 0.12