Table 4 Positively selected sites detected in thirteen complete chloroplast genomes of the Costaceae family

cemA

M2a

ω2 = 16.05889

1 M 0.931

M8

p0 = 0.95614 p = 0.00500 q = 2.03556

(p1 = 0.04386) ω = 10.52669

1 M 0.963*

clpP

M2a

ω2 = 145.50270

23 L 0.919, 24I 0.998**

M8

p0 = 0.98974 p = 0.00500 q = 1.93438

(p1 = 0.01026) ω = 145.50213

23 L 0.958*, 24I 0.999**

ndhA

M2a

ω2 = 102.62253

83 V 0.933, 185R 1.000**,

186 V 1.000**, 187I 1.000**,

188 L 1.000**, 200 W 0.962*

M8

p0 = 0.95909 p = 0.00500 q = 1.93014

(p1 = 0.04091) ω = 30.35637

83 V 0.963*, 185R 1.000**, 186 V 1.000**, 187I 1.000**, 188R 1.000**, 200 W 0.981*

ndhF

M2a

ω2 = 4.42852

674 A 0.963*

M8

p0 = 0.96774 p = 0.52675 q = 8.62704

(p1 = 0.03226) ω = 4.45145

674 A 0.971*

petB

M2a

ω2 = 375.89354

1 L 1.000**, 2 N 0.991**

M8

p0 = 0.98507 p = 0.00500 q = 2.19711

(p1 = 0.01493) ω = 208.93829

1 L 1.000**, 2 N 0.996**

psbD

M2a

ω2 = 179.56481

3I 0.996**, 4 A 1.000**

M8

p0 = 0.99133 p = 0.00500 q = 1.97892

(p1 = 0.00867) ω = 179.56381

3I 0.998**, 4 A 1.000**

rps12

M2a

ω2 = 999.00000

18R 0.932, 55Q 0.932, 115 K 0.991**

M8

p0 = 0.94820 p = 0.00500 q = 1.93325 (p1 = 0.05180) ω = 999.00000

18R 0.976*, 55Q 0.977*, 115 K 0.998**

ycf1

M2a

ω2 = 6.86864

916 K 0.944, 1130I 0.961*, 1416 K 0.985*

M8

p0 = 0.97844 p = 0.30668 q = 0.74177

(p1 = 0.02156) ω = 7.56416

916 K 0.969*, 1130I 0.978*, 1416 K 0.994**