Table 2.

Nucleotide composition and skewness of the Exhippolysmata ensirostris mitochondrial genome.

E. ensirostris	Size (bp)	A%	T%	G%	C%	A + T%	AT-skew	GC-skew
Mitogenome	16,350	32.51	31.91	14.24	21.33	64.43	0.009	− 0.199
nad4	1227	22.96	39.82	23.05	14.17	62.79	− 0.269	0.239
nad4l	255	23.53	38.43	25.88	12.16	61.96	− 0.240	0.361
nad6	498	27.91	36.55	12.65	22.89	64.46	− 0.134	− 0.288
cob	1137	26.47	35.09	15.92	22.52	61.57	− 0.140	− 0.172
nad1	870	22.76	40.34	23.33	13.56	63.1	− 0.279	0.265
nad2	982	26.48	36.25	10.9	26.37	62.73	− 0.156	− 0.415
cox1	1512	26.32	33.8	17.99	21.89	60.12	− 0.124	− 0.098
cox2	687	31	32.61	15.87	20.52	63.61	− 0.025	− 0.128
atp8	165	34.55	41.82	4.85	18.79	76.36	− 0.095	− 0.590
atp6	666	26.43	36.04	12.91	24.62	62.46	− 0.153	− 0.312
cox3	783	2682	33.59	17.5	22.09	60.41	0.975	− 0.116
nad3	366	26.78	37.43	13.93	21.86	64.21	− 0.166	− 0.222
nad5	1704	25.23	38.32	22.77	13.67	63.56	− 0.206	0.250
PCGs	10,852	26	36.6	18	19.4	62.6	− 0.169	− 0.037
tRNAs	1446	32.92	32.13	18.74	15.21	66.04	0.012	0.104
rRNAs	2186	31.05	35.57	20.53	12.85	66.62	− 0.068	0.230
CR	1249	35.23	34.09	14.14	16.53	69.33	0.016	− 0.078