| Genus | Family | Order | Species | Genome length | Top marker | Markers | Primers | Action |
|---|---|---|---|---|---|---|---|---|
| Ulmus | Ulmaceae | Rosales | 23 | 159–160 kb | trnS-GCU-trnG-GCC (81.8) | 267 | 75 | View |
| Ulnaria | Ulnariaceae | Licmophorales | 2 | 116–116 kb | trnV(TAC)-trnY(GTA) (82.4) | 332 | 75 | View |
| Ulota | Orthotrichaceae | Orthotrichales | 2 | 124–124 kb | rpoC1-rpoB (85.4) | 263 | 75 | View |
| Uncaria | Rubiaceae | Gentianales | 8 | 155–155 kb | trnG-GCC-trnR-UCU (77.0) | 266 | 105 | View |
| Uraria | Fabaceae | Fabales | 2 | 150–150 kb | trnS-UGA-psbC (82.8) | 242 | 85 | View |
| Urera | Urticaceae | Rosales | 6 | 153–154 kb | rpl32-trnL-UAG (75.2) | 266 | 90 | View |
| Urochloa | Poaceae | Poales | 4 | 139–139 kb | psbM-petN (77.7) | 265 | 95 | View |
| Urophysa | Ranunculaceae | Ranunculales | 2 | 158–159 kb | rps14-psaB (80.2) | 269 | 75 | View |
| Urtica | Urticaceae | Rosales | 20 | 146–148 kb | trnK-UUU-trnQ-UUG (82.2) | 264 | 75 | View |
| Utricularia | Lentibulariaceae | Lamiales | 25 | 132–154 kb | trnT-GGU-psbD (86.2) | 258 | 85 | View |
| Uvaria | Annonaceae | Magnoliales | 2 | 191–193 kb | psbC-trnS-UGA (87.1) | 312 | 90 | View |
