Table 1.
Characteristics of ALV subgroups identified in natural infections. The most studied subgroups are shown in bold. 1, EX, exogenous; EN, endogenous. 2, Recombinants of the subgroup found in natural infections.
| Alv Subgroup | En/ex 1 | Cytophaticity | Recombination 2 | Cell Receptor | Hosts |
|---|---|---|---|---|---|
| ALV-A | EX | NO | ALV-J | Tva protein | Galliformes (Gallus gallus; Meleagris gallopavo; Pavo muticus) Anseriformes (Sibirionetta formosa; Anas carolinensis) |
| ALV-B | EX | YES | ALV-J ALV-E |
Tvb protein | Galliformes (Gallus gallus; Meleagris gallopavo) Anseriformes (Sibirionetta formosa; Anas carolinensis) |
| ALV-C | EX | NO | ALV-J | Tvc protein | Galliformes (Meleagris gallopavo) |
| ALV-D | EX | YES | Tvb protein | Galliformes (Meleagris gallopavo) | |
| ALV-E | EN | - | ALV-A ALV-B ALV-C ALV-J |
Tvb protein | Galliformes (Gallus gallus; G. sonneratii (EAV-HP); Meleagris gallopavo; Lophortyx gambelii, Pavo muticus) Anseriformes (Anas falcata; A. carolinensis; Sibirionetta formosa) |
| ALV-F | EN | Galliformes (Phasianus colchicus; P. versicolor; Chrysolophus pictus) | |||
| ALV-G | EN | Galliformes (Chrysolophus pictus) | |||
| ALV-H | EX | Galliformes (Perdix perdix) | |||
| ALV-I | EX | Galliformes (Callipepla gambelii) | |||
| ALV-J | EX | ALV-A ALV-B ALV-C |
chNHE1 | Galliformes (Gallus gallus; Meleagris gallopavo; Perdix perdix) Anseriformes (Anas acuta; A. poecilorhyncha; A. penelope; A. carolinensis; A. crecca; A. clypeata; A. formosa; Sibirionetta formosa; Mareca strepera) Passeriformes (Tarsiger cyanurus; Emberiza elegans; Phylloscopus inornatus; Poecile palustris) |
|
| ALV-K | EX | ALV-E | Tva protein | Galliformes (Chinese indigenous chickens: Gallus gallus) |