TABLE 2.

Analysis of the evolutionary pressure of selection on the OFP genes in pepper.

Collateral homologous	Synonymous substitution rate (Ks)	Non-synonymous substitution rate (Ka)	Selective pressure ratio (Ka/Ks)
CacOFP4-CacOFP8	2.3995	4.2491	1.7709
CacOFP6-CacOFP4	59.1311	3.2503	0.055
CacOFP16-CacOFP11	2.1397	2.8974	1.3541
CacOFP23-CacOFP22	0.409	0.977	2.389
CazOFP8-CazOFP23	2.4928	16.504	6.6207
CazOFP17-CazOFP21	1.2441	1.3557	1.0897
CamOFP11_CamOFP24	1.1054	6.2469	5.6512
CamOFP10_CamOFP20	1.2441	1.3557	1.0897
CamOFP14_CamOFP18	2.3596	2.1842	0.9256