TABLE 2.

dN/dS values for species of Thismia and their photosynthetic relatives and p-value and q-value for the hypothesis of the difference of dN/dS values between photosynthetic and non-photosynthetic species.

Gene	dN/dS in Thismia species	dN/dS in photosynthetic plants	p-value	q-value
accD	0.41	0.29	0.00	0.01
rpl2	0.32	0.23	0.59	0.59
rps2	0.43	0.13	8.26 × 10−8	4.54 × 10−7
rps3	0.35	0.12	1.09 × 10−6	2.40 × 10−6
rps3, with start sequences atypical codon excluded	0.47	0.12	4.45 × 10−7	1.22 × 10−6
rps4	0.36	0.1	2.86 × 10−7	1.05 × 10−6
rps4, sequences with atypical start codon excluded	0.37	0.1	6.80 × 10−8	7.48 × 10−7
rps8	0.23	0.26	0.49	0.54
rps8, sequences with atypical start codon excluded	0.26	0.26	0.24	0.30
rps12	0.25	0.03	0.00	0.00
rps18	0.44	0.31	0.00	0.00