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The
family Iflaviridae
contains a single genus Iflavirus. The type species for the genus is
Infectious flacherie virus (IFV).
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Genus: Iflavirus |
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Species:
Infectious flacherie virus |
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Infectious flacherie virus (IFV) |
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Species: Perina nuda
virus |
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Perina nuda virus (PnV) |
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Species:
Sacbrood virus
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Sacbrood virus (SBV) |
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Species:
Deformed wing virus |
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Deformed wing virus (DWV) |
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Kakugo virus (KV) |
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Species:
Ectropis obliqua virus |
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Ectropis obliqua virus (EoV) |
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Species:
Varroa destructor virus-1 |
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Varroa destructor virus 1 (VDV-1) |
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Unassigned viruses |
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Venturia canescens
picorna-like virus |
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Brevicoryne
brassicae picorna-like virus |
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Bee slow
paralysis virus |
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Nasonia vitripennis virus |
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Spodoptera exigua iflavirus 1 |
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It is clear from
sequence comparisons (N.J. Knowles, unpublished observations) that these
viruses can be divided into seven groups (species?) which I have
arbitrarily labelled
A to G:
A)
Infectious flacherie
virus (IFV)
B) Sacbrood virus (SBV)
C) Perina nuda virus (PnV)
and Evtropis oblique picorna-like virus (EoPV)
D) Deformed
wing virus (DWV), Varroa
destructor virus 1 (VDV-1) and Kakugo virus (KV)
E) Venturia canescens
picorna-like virus (VcPLV)
F) Brevicoryne
brassicae picorna-like virus (BBPLV)
G) (Honey) bee slow
paralysis virus (BSPV)
Below is a N-J tree of
the polymerase region (~500 aa). Each of the seven virus groups could
represent a distinct genus.
Software: MEGA 3.1
No. of Taxa : 14
Data File : Iflaviridae_pol_2.meg
Data Title : Iflavirus partial pol
Data Type : Amino acid
Analysis : Phylogeny reconstruction
Tree Inference : ==============================
Method : Neighbor-Joining
Phylogeny Test and options : Bootstrap (1000 replicates; seed=64238)
Include Sites : ==============================
Gaps/Missing Data : Pairwise Deletion
Substitution Model : ==============================
Model : Amino: Poisson correction
Substitutions to Include : All
Pattern among Lineages : Same (Homogeneous)
Rates among sites : Uniform rates
No. of Sites : 544
No Of Bootstrap Reps = 1000
Table showing the percentage amino acid differences for the polymerase
region depicted in the tree above.
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
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9 |
10 |
11 |
12 |
13 |
14 |
| 1 |
IFV (AB000906) |
0 |
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| 2 |
IFV (EF422865) |
0.8 |
0 |
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| 3 |
IFV (EF422866) |
0.8 |
0.4 |
0 |
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| 4 |
SBV (AF092924) |
74.5 |
74.5 |
74.5 |
0 |
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| 5 |
SBV (AF469603) |
74.9 |
74.9 |
74.9 |
1.7 |
0 |
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| 6 |
PnPV (AF323747) |
78.8 |
78.8 |
78.8 |
73.6 |
73.8 |
0 |
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| 7 |
EoPV (AY341824) |
79.2 |
78.8 |
78.8 |
72.7 |
72.9 |
6.9 |
0 |
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| 8 |
DWV (AJ489744) |
75.1 |
75.1 |
74.8 |
66.3 |
66.7 |
73.9 |
74.3 |
0 |
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| 9 |
DWV (AY292384) |
75.2 |
75.2 |
74.9 |
66.5 |
66.9 |
74 |
74.4 |
0 |
0 |
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| 10 |
VDV (AY251269) |
75.4 |
75.4 |
75.2 |
66.9 |
67.3 |
74.6 |
75.5 |
3.9 |
3.9 |
0 |
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| 11 |
KV (AB070959) |
75.1 |
75.1 |
74.9 |
66.2 |
66.6 |
74.2 |
74.4 |
1.2 |
1.2 |
3.9 |
0 |
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| 12 |
BBPLV (EF517277) |
74.9 |
74.7 |
74.7 |
65.9 |
65.7 |
75.4 |
76.2 |
58.7 |
58.7 |
59.3 |
58.8 |
0 |
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| 13 |
VcPLV (AY534885) |
76.2 |
75.8 |
76 |
71.1 |
71.1 |
77.9 |
78.3 |
65.4 |
65.6 |
65.6 |
65.1 |
61.2 |
0 |
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| 14 |
BSPV (EU035616) |
74.9 |
74.7 |
74.5 |
70.8 |
71.2 |
74.1 |
74.7 |
60.8 |
60.7 |
61.1 |
60.5 |
65.2 |
70.1 |
0 |
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