Table 2.

Intraspecies Variation in the Mitochondrial Genomes of Aureococcus anophagefferens Strains CCMP1707, CCMP1708, CCMP1850, CCMP1984, and CCMP3368

		CCMP1850	CCMP1707
No. differences/% identity to	CCMP1984 CCMP1708 CCMP3368	235/99.4%	198/99.5%
	CCMP1707	45/99.9%	—
	CCMP1850	—	45/99.9%
Silent mutations (relative to CCMP1984)	Non-coding regions	4	4
	Coding regions	5	5
Missense mutations		3	1
Nonsense mutations		1	0
		–dcm gene truncated, split into two partial dcm genes
Indels		2	2
		–1-bp deletion resulting in complete viral methyltransferase domain –tandem repeat expansion (17-bp repeat×19 copies, CCMP1984 has 6 copies) resulting in longer hypothetical protein	–1-bp deletion resulting in complete viral methyltransferase domain –tandem repeat expansion (17-bp repeat×17 copies) resulting in longer hypothetical protein

Note.—All variation is presented relative to strain CCMP1984. Where SNPs/indels have consequences on the overall structure of a protein-coding gene, the resulting changes are noted.