Table 2.

Minimal numbers of inversions estimated in pairwise comparisons of gene order in chlorophyte cpDNAs

	Number of inversions a
Compared cpDNAs	Chlorella	Leptosira	Oltmannsiellopsis	Pseudendoclonium	Stigeoclonium	Scenedesmus	Chlamydomonas
Nephroselmis	46	51	54	54	79	73	72
Chlorella		53	50	50	78	73	71
Leptosira			55	58	77	74	72
Oltmannsiellopsis				53	81	75	74
Pseudendoclonium					77	74	73
Stigeoclonium						78	83
Scenedesmus							59

^a Numbers of gene permutations by inversions were computed using GRIMM [19].