Table 3.

Genes under positive and relaxed selection in A. subg. Rhizirideum plastomes

Gene	Ka/Ks ratio	Selection pressure	Gene description	Pathway
ycf2	1.107	Positive selection	Ycf2, part of a 2-MD heteromeric AAA-ATPase complex	Photosynthesis
rbcL	0.563	Relaxed selection	ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit	Calvin-Benson Cycle
ycf1a	0.787	Relaxed selection	Tic214, part of a translocon at the inner envelope membranes of chloroplast called TIC	Photosynthesis
ycf1b	0.544	Relaxed selection	Tic214, part of a translocon at the inner envelope membranes of chloroplast called TIC	Photosynthesis