Table 1.
Genome Coverage (number of nonredundant nucleotide positions in the genome) by Coding and Noncoding Features in the Citrullus and Cucurbita Mitochondrial Genomes.
| Class | Feature | Citrullus (%) | Cucurbita (%) |
| Total Size | 379,236 | 982,833 | |
| Coding | Protein exons | 32,370 (8.5) | 32,032 (3.3) |
| Cis-spliced introns | 32,476 (8.6) | 30,557 (3.1) | |
| rRNA | 5,148 (1.4) | 5,109 (0.5) | |
| tRNA | 1,358 (0.4) | 966 (0.1) | |
| Conserved syntenic regionsa | 102,531 (27.0) | 94,803 (9.6) | |
| Noncoding | Mitochondrial-likeb | 159,032 (41.9) | 180,008 (18.3) |
| Chloroplast-like | 22,779 (6.0) | 113,347 (11.5) | |
| Nuclear-like | |||
| Transposable elements | 20,914 (5.5) | 17,820 (1.8) | |
| Protein genes | 3,438 (0.9) | 2,818 (0.3) |
a
Includes all genes, cis- and trans-spliced introns, and the highly conserved (putatively functional) sequences immediately flanking them.
b
Intergenic sequences with similarity to DNA in at least one other seed plant mitochondrial genome, excluding chloroplast-like sequences.