Table 2.

The potential positive selection test based on the branch-site model.

No	Genes	Null hypothesis			Alternative hypothesis			Significance test
		lnL	df	omega (w = 1)	lnL	df	omega (w > 1)	BEB	LRT/P-value
1	psbC	− 2628.876655	48	1	− 2628.876655	49	2.38616		1
2	psbD	− 1886.150227	48	1	− 1886.150206	49	1		0.99482915
3	psbE	− 438.426396	48	1	− 438.426396	49	1		1
4	psbF	− 207.535187	48	1	− 207.535187	49	2.13411		1
5	psbH	− 461.853033	48	1	− 461.853033	49	1		1
6	psbI	− 198.463720	48	1	− 198.463720	49	1.02032		1
7	psbJ	− 268.641875	48	1	− 268.641875	49	1		1
8	psbK	− 385.952605	48	1	− 385.952606	49	2.30325		1
9	psbL	− 184.308851	48	1	− 184.308851	49	2.85599		1
10	psbM	− 158.730809	48	1	− 158.730809	49	1.99465		1
11	psbN	− 226.751297	48	1	− 226.751297	49	2.31959		1
12	psbT	− 182.788331	48	1	− 182.788328	49	1		0.99804559
13	psbZ	− 323.223609	48	1	− 323.223610	49	2.04743		1
14	rbcL	− 2862.940558	48	1	− 2862.940558	49	1	97 F 0.589	1
15	rpl14	− 740.033667	48	1	− 740.033667	49	1.87798		1
16	rpl16	− 817.516599	48	1	− 817.516578	49	1		0.99482915
17	rpl20	− 784.139114	48	1	− 784.139113	49	1.63776		0.99887162
18	rpl22	− 1192.404192	48	1	− 1192.404192	49	1		1
19	rpl23	− 489.910969	48	1	− 489.910972	49	1.60907		1
20	rpl2	− 1318.425181	48	1	− 1318.425181	49	2.00600		1
21	rpl32	− 378.674247	48	1	− 378.674247	49	1		1
22	rpl33	− 408.488673	48	1	− 408.488673	49	1.59913		1
23	rpl36	− 172.345096	48	1	− 172.345096	49	1.67091		1
24	rpoA	− 2432.015315	48	1	− 2432.015306	49	1		0.99661487
25	rpoB	− 6520.420040	48	1	− 6520.420227	49	2.26257		1
26	rpoC1	− 4522.103881	48	1	− 4522.103903	49	1.78582		1
27	rpoC2	− 10,541.83165	48	1	− 10,541.83152	49	2.51647		0.98689001
28	rps11	− 832.170672	48	1	− 832.170681	49	1.72878		1
29	rps12	− 638.263354	48	1	− 638.263335	49	13.88404		0.99508154
30	rps14	− 610.532984	48	1	− 610.532987	49	1.52180		1
31	rps15	− 719.532818	48	1	− 719.270557	49	18.60132	30 D 0.873	0.46891907
32	rps16	− 605.186225	48	1	− 605.186223	49	1		0.99840423