The Antarctic sea ice alga Chlamydomonas sp. ICE-L provides insights into adaptive patterns of chloroplast evolution

Table 3 Convergent amino acid substitutions between Chlamydomonas sp. ICE-L and Dunaliella salina

Gene	Function	P value^a	Q-value	Position(s)	AA Changes
atpB	ATP synthase subunit beta, chloroplastic	3.18E-03	0.0365	2	Val-Ile
psaB	Photosystem I P700 chlorophyll a apoprotein A2	1.27E-04	0.0058	116	Ser-Ala
rbcL	Ribulose bisphosphate carboxylase large chain	1.95E-04	0.0019	32	Arg-Ser
				116	Met-Leu
				141	Pro-Ser

The numbering of amino acid residues identified by convergent evolution analyses corresponds to their alignment positions. ^a: A statistical test is conducted under the assumption that the number of convergent (or parallel) sites follows a Poisson distribution with the mean equal to the expected number. When the observed number is smaller than the expected, the lower tail probability is given; when the observed number is larger than the expected, the upper tail probability is given

ISSN: 1471-2229