Table 2.
Genome organization of emaraviruses, the size of their genomic segments and the putative proteins and their sizes encoded by thema
| Emaravirus species | RNA‐1 RNA‐dependent RNA polymerase (RdRp) (p1) | RNA‐2 glycoprotein precursor (p2) | RNA‐3 nucleocapsid protein (p3 or NC) | RNA‐4 movement protein (p4) | RNA‐5 unknown (p5) | RNA‐6 unknown (p6) |
|---|---|---|---|---|---|---|
| PPSMV | 7022 nt | 2223 nt | 1442 nt | 1563 nt | 1801 nt | — |
| 268 kDa | 74.3 kDa | 34.6 kDa | 40.8 kDa | 55 kDa | ||
| FMV | 7093 nt | 2252 nt | 1490 nt | 1472 nt | 1752 nt | 1212 nt |
| 264 kDa | 73 kDa | 35 kDa | 40.5 kDa | 59 kDa | 22 kDa | |
| RRV | 7026 nt | 2220 nt | 1544 nt | 1541 nt | —b | — |
| 265 kDa | 74 kDa | 36 kDa | 41 kDa | |||
| EMARaV | 7040 nt | 2335 nt | 1559 nt | 1348 nt | — | — |
| 266 kDa | 75 kDa | 35 kDa | 27 kDa | |||
| RLBV | 7062 nt | 2135 nt | 1365 nt | 1675 nt | 1718 nt | — |
| 269 kDa | 75 kDa | 32 kDa | 42 kDa | 56 kDa | ||
| WMoVc | 6981 nt | 2211 nt | 1439/1441 nt | 1682 nt | 1715 nt | 1752 nt |
| 266 kDa | 77 kDa | 33 kDa | 42 kDa | 56 kDa | 58 kDa |
EMARaV, European mountain ash ringspot‐associated virus; FMV, Fig mosaic virus; PPSMV, Pigeonpea sterility mosaic virus; RLBV, Raspberry leaf blotch virus; RRV, Rose rosette virus; WMoV, Wheat mosaic virus. nt, nucleotides.
a
Modified from Mielke‐Ehret and Mühlbach (2012).
b
Not detected.
c
The WMoV genome has eight RNA segments; RNA‐7 (1434 nt) and RNA‐8 (1339 nt) are predicted to code for 36‐ and 21‐kDa proteins. WMoV is also known to have two different sized RNA‐3 forms (1439 and 1441 nt).