Table 3.
Conservation of gene order in streptophyte mitochondrial genomes
| Compared genomes | No. of conserved gene clusters a | No. of genes in clusters/no. of shared genes b | Similarity index c | No. of reversals d |
| Chara/Physcomitrella | 10 | 59/64 | 9.2 | 12 |
| Chaetosphaeridium/Physcomitrella | 10 | 40/62 | 6.5 | 26 |
| Marchantia/Physcomitrella | 14 | 59/65 | 6.5 | 14 |
| Chaetosphaeridium/Chara | 12 | 43/65 | 5.5 | 28 |
| Chara/Marchantia | 16 | 58/67 | 5.4 | 20 |
| Chaetosphaeridium/Marchantia | 15 | 46/65 | 4.7 | 27 |
| Chlorokybus/Physcomitrella | 8 | 20/61 | 4.1 | 47 |
| Chlorokybus/Chaetosphaeridium | 9 | 22/65 | 3.8 | 49 |
| Chlorokybus/Chara | 9 | 21/65 | 3.6 | 51 |
| Mesostigma/Physcomitrella | 2 | 4/61 | 3.3 | 57 |
| Chlorokybus/Marchantia | 10 | 21/66 | 3.2 | 51 |
| Mesostigma/Chaetosphaeridium | 2 | 4/65 | 3.1 | 60 |
| Mesostigma/Chara | 2 | 4/65 | 3.1 | 61 |
| Mesostigma/Marchantia | 2 | 4/65 | 3.1 | 60 |
| Chlorokybus/Mesostigma | 2 | 4/66 | 3.0 | 63 |
a A conserved gene cluster is defined here as a suite of genes/gene pieces with the same order and polarities in the pair of compared genomes.
b The ratio of these two values represents the fraction of shared genes/gene pieces found in conserved clusters.
c This value was obtained by dividing the percentage of shared genes/gene pieces found in conserved clusters by the number of conserved clusters.
d GRIMM was used to infer the numbers of reversals required to transform gene order in the compared genomes.