Table 4 Codon usage pattern of 13 mitochondrial protein-coding genes in Bugula neritina

Phe

UUU

178

Ser

UCU

69

Tyr

UAU

58

Cys

UGU

17

(GAA)

UUC

66

(UGA)

UCC

40

(AUA)

UAC

63

(GCA)

UGC

14

Leu

UUA

300

UCA

77

Ter

UAA

11

Trp

UGA

72

(UAA)

UUG

36

UCG

6

UAG

0

(UCA)

UGG

16

Leu

CUU

56

Pro

CCU

60

His

CAU

32

Arg

CGU

6

(AAG)

CUC

22

(UGG)

CCC

33

(GUG)

CAC

34

(UCG)

CGC

5

CUA

113

CCA

40

Gln

CAA

72

CGA

29

CUG

17

CCG

10

(UUG)

CAG

6

CGG

5

Ile

AUU

237

Thr

ACU

76

Asn

AAU

80

Ser

AGU

7

(GAU)

AUC

109

(UGU)

ACC

79

(GUU)

AAC

101

(UCU)

AGC

18

Met

AUA

281

ACA

112

Lys

AAA

144

AGA

119

(CAU)

AUG

39

ACG

8

(UUU)

AAG

12

AGG

21

Val

GUU

32

Ala

GCU

73

Asp

GAU

28

Gly

GGU

27

(UAC)

GUC

15

(UGC)

GCC

33

(GUC)

GAC

30

(UCC)

GGC

19

GUA

87

GCA

89

Glu

GAA

72

GGA

91

GUG

21

GCG

3

(UUC)

GAG

8

GGG

34