Table 2.
Gene composition in the plastomes of Selenicereus
| Category of genes | Group of genes | Name of genes |
|---|---|---|
| Ribosomal RNA | rRNA | rrn16S, rrn23S, rrn5S, rrn4.5S |
| Transfer RNA | tRNA | 30 unique trna genes |
| Photosynthesis | Subunits of ATP synthase | atpA (× 2), atpA, atpB, atpE, atpF* (× 2), atpH, atpI |
| Subunits of photosystem II | psbA (× 2), psbB, psbC, psbD, psbE, psbF, psbI (× 2), psbJ, psbK (× 2), psbM, psbN, psbT, psbZ | |
| Subunits of NADH-dehydrogenase | ndhBψ, ndhD | |
| Subunits of cytochrome b/f complex | petA, petB*, petD*, petG, petL, petN | |
| Subunits of photosystem I | psaA, psaB, psaC, psaI, psaJ | |
| Subunit of rubisco | rbcL | |
| Self-replication | Large subunit of ribosome | rpl14, rpl16*, rpl2, rpl20, rpl22, rpl32, rpl33, rpl36 |
| DNA dependent RNA polymerase | rpoA, rpoB, rpoC1, rpoC2 | |
| Small subunit of ribosome | rps11, rps12*, rps14, rps15, rps16, rps16*, rps18, rps19, rps2, rps3, rps4, rps7, rps8 | |
| Other genes | Subunit of Acetyl-CoA-carboxylase | accD |
| c-type cytochrom synthesis gene | ccsA | |
| Envelope membrane protein | cemA | |
| Protease | clpPψ (× 2) | |
| Translational initiation factor | infA | |
| Maturase | matK (× 2) | |
| Unknown | Conserves open reading frames | ycf1, ycf1ψ, ycf3**, ycf2 (× 2), ycf4 |
(× 2) indicates that the gene located in the IRs and thus had two complete copies, * and ** indicate that genes containing one/two introns. ‘ψ’ indicates that it is a pseudogene