Table 1. Gene content of sugar beet (Bv) mtDNA compared to Arabidopsis (At).
| Gene (map co-ordinate in kb) | Bv | At | Gene (map co-ordinate in kb) | Bv | At |
|---|---|---|---|---|---|
| Complex I | Ribosomal proteins | ||||
| nad1* (102, 105, 152, 243) | + | + | rpl2 | – | + |
| nad2* (75, 240) | + | + | rpl5 (181) | + | + |
| nad3 (263) | + | + | rpl16 | – | + |
| nad4 (285) | + | + | rps3 (271) | + | + |
| nad4L (55) | + | + | rps4 (191) | + | + |
| nad5* (141, 171, 319) | + | + | rps7 (231) | + | + |
| nad6 (193) | + | + | rps12 (263) | + | + |
| nad7 (216) | + | + | rps13 (107) | + | – |
| nad9 (0) | + | + | Ribosomal RNAs | ||
| Complex II | rrn5 (308) | + | + | ||
| sdh4 | – | ψ? | rrn18 (309) | + | + |
| Complex III | rrn26 (125, 212, 348) | +a | + | ||
| cob (179) | + | + | Intronic ORF (in nad1-i4) | ||
| Complex IV | mat-r (244) | + | + | ||
| cox1 (238) | + | + | Sec-independent membrane targeting and translocation system | ||
| cox2 (234) | + | + | tatC (199) | + | + |
| cox3 (297) | + | + | Other ORF | ||
| Complex V | orf25 (54) | + | + | ||
| atp1 (337) | + | + | tRNAs | ||
| atp6 (201) | + | + | ‘Native’ | ||
| atp8 (299) | + | + | trnC1-GCA (83) | ψ | + |
| atp9 (72) | + | + | trnE-UUC (91) | + | + |
| Cytochrome c biogenesis | trnF-GAA (329) | + | – | ||
| ccb206 (156) | + | + | trnG-GCC (315) | + | + |
| ccb228 (49) | ψ | + | trnI-CAU (197) | + | + |
| ccb438 (37) | + | + | trnK-UUU (163) | + | + |
| ccb577 (33) | + | ψ? | trnfM-CAU (125, 153, 216, 352) | +b | + |
| trnP-UGG (329) | + | + | |||
| trnQ-UUG (313) | + | + | |||
| trnS-GCU (332) | + | + | |||
| trnS-UGA (154) | + | + | |||
| trnY1-GUA (80) | + | + | |||
| ‘Chloroplast–like’ | |||||
| trnD-GUC (289) | + | + | |||
| trnH-GUG (93) | + | + | |||
| trnN-GUU (81) | + | + | |||
| trnM-CAU (89) | + | + | |||
| trnP-UGG (1) | ψ | ψ | |||
| trnS-GGA (250) | + | + | |||
| trnV-GAC (7) | ψ | – | |||
| trnW-CCA (1) | + | + | |||
| Converted from trnF-GAA | |||||
| trnY2-GUA | – | + | |||
| Origin unknown | |||||
| trnC2-GCA (123, 354) | +c | – |
*, trans-splicing; +, present; ψ, pseudogene; ψ?, likely pseudogene; –, absent; a, three copies; b, four copies; c, two copies.