Table 2.

Estimated divergence time between BrrOPT ortholog genes.

Paralogous pairs	Ks	Ka	Ka/Ks	T (MYA)
BrrYSL5.1/BrrYSL5.2	0.4775	0.0207	0.0434	15.92
BrrYSL7/BrrYSL9	0.6385	0.2966	0.4645	21.28
BrrYSL4/BrrYSL6	0.5983	0.123	0.2056	19.94
BrrYSL3/BrrYSL2	1.2282	0.1468	0.1195	40.94
BrrYSL1.2/BrrYSL1.1	0.3454	0.0312	0.0903	11.51
BrrOPT9.1/BrrOPT9.2	0.1848	0.0445	0.2408	6.16
BrrOPT8.3/BrrOPT8.2	0.1665	0.0576	0.3459	5.55
BrrOPT7.2/BrrOPT7.1	0.4177	0.1004	0.2404	13.92
BrrOPT5.2/BrrOPT5.1	0.3939	0.079	0.2006	13.13
BrrOPT1.2/BrrOPT1.1	0.4636	0.0164	0.0354	15.45
BrrOPT2/BrrOPT4	1.4171	0.2826	0.1994	47.24