Table 1.

Comparison of protein lengths and similarities among the mitochondrial protein-coding genes of three osteoglossids and bichir

Gene products	Protein length (in amino acids)				Similarity to Asian arowana (%)
	Asian arowana	Silver arowana	Butterfly fish	Bichir	Silver Arowana	Butterfly fish	Bichir
nad1	323	323	322	319	92.0	58.7	57.7
nad2	347	348	347	345	82.5	74.4	61.7
cox1	518	521	546	518	96.3	94.6	90.9
cox2	230	230	230	230	93.0	82.6	74.2
atp8	55	55	53	55	68.5	52.8	42.6
atp6	227	227	228	227	89.9	85.0	72.2
cox3	116	116	115	115	93.1	76.5	73.0
nad3	98	98	98	98	93.9	82.7	72.5
nad4L	262	261	261	263	94.3	90.8	88.1
nad4	460	460	460	459	88.0	82.2	72.3
nad5	613	614	615	613	86.5	79.2	66.2
nad6	172	172	172	167	94.2	72.1	49.7
cob	380	381	380	380	91.1	88.2	78.9