Table 1.
Characteristics of Cryptophyte Plastid Genomes Analyzed in This Study
| General Characteristics | Guilardia theta CCMP 2712 | Teleaulax amphioxeia HACCP CR01 | Rhodomonas salina CCMP1319 | Storeatula species CCMP1868 | Chroomonas placoidea CCAP978/8 | Chroomonas mesostigmatica CCMP 1168 | Cryptomonas curvata FBCC300012D | Cryptomonas paramecium CCAP977/2a |
|---|---|---|---|---|---|---|---|---|
| Plastid color | Red | Red | Red | Red | Green | Green | Brown | Colorless |
| Size (bp) | 121,524 | 129,774 | 135,854 | 140,953 | 139,432 | 139,403 | 128,285 | 77,717 |
| G+C (%) | 33.0% | 34.2% | 34.8% | 32.0% | 35.8% | 35.8% | 35.3% | 38.1% |
| Intergenic space (%) | 14,792 (12.2%) | 20,108 (15.5%) | 23,767 (17.5%) | 28,638 (20.3%) | 27,796 (19.9%) | 25289 (18.1%) | 20,442 (15.9%) | 9,917 (12.8%) |
| Total gene (include RNAs) | 183 | 179 | 183 | 187 | 186 | 189 | 184 | 114 |
| No. of protein-coding genes | 147 | 143 | 146 | 149 | 149 | 150 | 147 | 82 |
| Unknown ORFs | 1 (orf91, orf555, orf147, orf164/orf335 | 2 (orf77=orf282, ycf20) | 4 | 5 | 1 | |||
| Ribosomal proteins | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 42 |
| LIPOR gene | – | – | chlB a, chlL a, chlN a | chlB, chlL, chlN, | chlB a, chlL a, chlN a, | chlB a, chlL a, chlN a, | chlB, chlN, chlL | – |
| tRNAs | 30 | 30 | 31 | 30 | 32 | 32 | 31 | 29 |
| rRNA operons | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 |
| Introns | – | – | 1 | 4 | 4 | 4 | 1 | – |
| Type | – | – | Group II | Group II | Group II | Group II | Group II | |
| Gene with intron | psbN | groEL/ftrB/orf27/ psbN | groEL/minD/ petG/psbN | groEL/ minD/petG/psbN | psbN | |||
| Pseudogene | – | – | – | – | – | – | – | atpF |
| Missing | – | – | – | – | dnaB, dnaX, ycf26 | dnaB, dnaX, ycf26 | dnaB, dnaX, ycf26 | pet, psa, psb |
| GenBank accession | NC000926 | NC027589 | NC009573 | KY856940 | KY856941 | KY860574 | KY856939 | NC013703 |
Note.—(a) present as pseudogene. LIPOR; the light-independent protochlorophyllide oxidoreductases gene in plastid genome.