Table 3.

Rearrangement Ratio and Rate Between Pairs of Species

Start Point	Fugu	Tetraodon	Fugu	Medaka	Tetraodon	Medaka	Average of Teleosts	Human	Mouse	Human	Opossum	Mouse	Opossum	Average of Mammals
End Point	Tetraodon	Fugu	Medaka	Fugu	Medaka	Tetraodon		Mouse	Human	Opossum	Human	Opossum	Mouse
Number of proximate gene pairs in start point	3,617	3,618	3,617	3,615	3,618	3,615	N/A	3,616	3,619	3,616	3,630	3,619	3,630	N/A
Number of approximate gene pairs in end point	3,511	3,508	3,209	3,207	3,205	3,219	N/A	3,337	3,345	3,140	3,127	3,079	3,057	N/A
PC ratioa	0.971	0.970	0.887	0.887	0.886	0.890	0.915	0.923	0.924	0.868	0.861	0.851	0.842	0.878
PL-total ratiob	0.029	0.030	0.113	0.113	0.114	0.110	0.085	0.077	0.076	0.132	0.139	0.149	0.158	0.122
PL-inter ratioc	0.003	0.005	0.012	0.011	0.018	0.014	0.011	0.040	0.035	0.027	0.052	0.050	0.099	0.051
PL-intra ratiod	0.026	0.026	0.100	0.102	0.096	0.096	0.074	0.037	0.041	0.105	0.087	0.099	0.059	0.071
Divergence time by fossil record (My)e	44	44	124	124	124	124	N/A	81	81	132	132	132	132	N/A
PL-total ratef	6.66	6.91	9.10	9.10	9.21	8.83	8.30	9.53	9.35	9.97	10.50	11.30	11.96	10.44
PL-inter rateg	0.69	1.13	1.00	0.89	1.45	1.09	1.04	4.98	4.26	2.01	3.94	3.79	7.47	4.41
PL-intra rateh	5.97	5.90	8.09	8.21	7.76	7.74	7.28	4.54	5.08	7.96	6.55	7.52	4.49	6.02

^aRatio of conserved proximity. This is the ratio E/S, where S is the number of pairs in start point, and E is the number of pairs in end point.

^bRatio of proximity loss is the ratio (S − E)/S.

^cThis is the ratio PL-inter/S, where PL-inter is the number of proximity loss caused by interchromosomal rearrangements.

^dThis is the ratio PL-intra/S, where PL-intra is the number of proximity loss caused by intrachromosomal rearrangements.

^eEstimates of divergence time of teleosts and mammalians based on fossil records were described by Benton and Donoghue (2007).

^fPL-total ratio/My/10⁻⁴.

^gPL-inter ratio/My/10⁻⁴.

^hPL-intra ratio/My/10⁻⁴.