Table 3.

The codon usage and relative synonymous codon usage of highly preferred codons for avUCP in eight avian species.

Codon	Chicken		Mallard		Manakin		Pigeon		Swallow		Sparrow		Turkey		Wagtail
	CU	RSCU	CU	RSCU	CU	RSCU	CU	RSCU	CU	RSCU	CU	RSCU	CU	RSCU	CU	RSCU
AGC(S)	11	3.5	11	3.7	7	2.8	9	3.4	11	3.3	9	3.2	10	3.2	10	3.5
CGG(R)	8	2.1	6	1.6	7	2.0	8	2.1	12	3.0	6	1.6	8	2.1	9	2.4
CGC(R)	7	1.8	9	2.5	9	2.6	11	2.9	8	2.0	12	3.1	4	1.0	10	2.6
CUG(L)	25	4.4	20	3.8	20	3.2	20	3.8	22	3.9	21	3.9	24	4.4	20	3.8
CUC(L)	8	1.4	9	1.7	12	2.0	11	2.1	11	1.9	10	1.9	8	1.5	11	2.1
GCC(A)	18	2.3	22	2.4	21	2.2	20	2.3	30	3.2	28	3.0	20	2.6	31	3.4
GGG(G)	14	2.2	16	2.3	13	1.9	14	1.9	12	1.7	11	1.6	13	2.0	7	1.0
GGC(G)	9	1.4	11	1.6	9	1.3	9	1.2	11	1.6	11	1.6	7	1.1	18	2.7
GUG(V)	27	3.5	21	2.6	20	2.7	21	2.7	22	3.1	23	3.1	27	3.5	21	2.6
GUC(V)	4	0.5	10	1.3	7	0.9	9	1.2	5	0.7	6	0.8	4	0.5	10	1.3
ACC(T)	10	1.7	10	2.0	10	2.0	11	1.6	10	1.9	10	1.9	11	1.9	9	1.7
ACG(T)	9	1.6	9	1.8	3	0.6	11	1.6	7	1.3	8	1.5	10	1.7	8	1.5
CCC(P)	13	2.9	13	2.6	9	2.4	12	3.2	10	2.7	10	2.5	13	2.9	11	2.8
AUC(I)	10	2.5	11	3.0	8	2.4	10	3.0	10	3.0	10	2.7	11	2.8	8	3.0
AAG(K)	7	1.6	7	1.6	10	1.8	8	1.8	8	1.8	8	1.8	7	1.6	9	2.0
AAC(N)	8	1.8	7	2.0	6	1.3	8	2.0	6	1.7	7	1.8	6	1.3	8	1.8
CAG(Q)	11	1.8	9	1.5	13	1.9	13	2.0	11	2.0	12	2.0	12	2.0	11	1.8
CAC(H)	1	2.0	2	2.0	1	2.0	1	2.0	1	2.0	0	0.0	1	2.0	1	2.0
CAU(H)	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	1	2.0	0	0.0	0	0.0
GAG(E)	10	2.0	8	1.8	8	1.8	8	1.8	9	2.0	9	2.0	10	2.0	9	2.0
GAC(D)	7	1.4	11	2.0	6	1.1	10	1.8	9	1.6	10	1.8	8	1.6	10	1.8
UAC(Y)	9	1.6	11	2.0	9	1.6	8	1.5	10	1.8	11	2.0	9	1.6	11	2.0
UGC(C)	7	1.8	7	1.8	7	1.8	7	1.8	7	1.8	8	1.8	7	1.8	7	1.8
UUC(F)	11	2.0	9	1.8	9	1.8	10	1.8	7	1.4	9	1.8	10	1.8	9	1.8
UGG(W)	2	1.0	3	1.0	2	1.0	2	1.0	2	1.0	2	1.0	2	1.0	3	1.0
AUG(M)	7	1.0	6	1.0	7	1.0	6	1.0	10	1.0	11	1.0	8	1.0	11	1.0