The complete mitochondrial genome of the sea spider Achelia bituberculata (Pycnogonida, Ammotheidae): arthropod ground pattern of gene arrangement

Table 3 Nucleotide composition and skews of Achelia bituberculata mitochondrial protein-coding and ribosomal RNA genes

Gene	Proportion of nucleotides				AT%	AT skew	CG skew
	A	C	G	T
atp8 (+)	0.388	0.075	0.068	0.469	85.7	-0.095	0.048
atp6 (+)	0.342	0.102	0.099	0.456	79.9	-0.143	0.015
cox1 (+)	0.287	0.139	0.165	0.408	69.6	-0.174	-0.087
cox2 (+)	0.338	0.126	0.134	0.402	74.0	-0.087	-0.033
cox3 (+)	0.304	0.115	0.154	0.427	73.1	-0.168	-0.146
cob (+)	0.346	0.141	0.108	0.405	75.1	-0.079	0.136
nad1 (-)	0.289	0.093	0.149	0.468	75.8	-0.236	-0.230
nad2 (+)	0.321	0.092	0.115	0.472	79.3	-0.190	-0.108
nad3 (+)	0.292	0.096	0.146	0.465	75.7	-0.228	-0.205
nad4 (-)	0.333	0.100	0.114	0.453	78.6	-0.152	-0.061
nad4L (-)	0.337	0.082	0.150	0.432	76.9	-0.124	-0.294
nad5 (-)	0.347	0.114	0.118	0.421	76.8	-0.095	-0.015
nad6 (+)	0.372	0.102	0.085	0.441	81.3	-0.085	0.087
rrnL (-)	0.369	0.075	0.138	0.417	78.7	-0.061	-0.295
rrnS (-)	0.380	0.079	0.138	0.403	78.4	-0.030	-0.274
Total (+)	0.379	0.119	0.110	0.391	77.0	-0.015	0.038

AT skew = (A%-T%)/(A%+T%); CG skew = (C%-G%)/(C%+G%); Bold letters mark the values of the genes on the (-) strand.

ISSN: 1471-2164