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Table 3 Categorization of isolates into genogroups

From: Genetic grouping and geographic distribution of Piscine orthoreovirus-1 (PRV-1) in farmed Atlantic salmon in Norway

Genogroup

(Reference isolate(s))

S1 (σ3) M2 (μ1)

L1 (λ3)

L2 (λ2)

S4 (σ1)

Isolates

High-1

(NOR-2018 NL)

Group B

Group A

Group A

D252N

NOR2019 TRO-1662s

NOR2019 TRL-1675m

NOR2019 TRL-1664m

NOR2019 TRO-1677m

NOR2019 MRO-1665m

NOR2019 TRO-5077m

NOR2019 MRO-5087m

NOR2019-TRO-5089m

NOR2019 FNM-5090m

NOR2019 TRL-5091m

NOR2019 FNM-1527m

NOR2019 NRL-1750m

NOR2019 TRO-1735m

NOR2019 FNM-1817m

High-2

(NOR-2018 SF)

Group B

Group A

Group A

V107A

NOR2019 NRL-1676m

NOR2019 NRL-1742m

NOR2019 MRO-5075s

NOR2019 TRL-5070s

NOR2019 NRL-5071s

NOR2019 NRL-5073s

NOR2019 HRD-1743m

NOR2019 HRD-1523m

NOR2019 HRD-1525m

Low-1

(NOR-1997)

Group B

Group B

Group B

NOR2019 ROG-1666m

NOR2016 ROG-1661s

NOR2019 NRL-5078m

NOR2019 FNM-1642s

NOR2019 HRD-1744m

NOR2019 ROG-1751m

NOR2019 SFJ-1745m

Low-2

(NOR-1996, NOR-1988 CAN 16-005ND)

Group A

Group A

Group A

NOR2019 SFJ-1736m

Unknown-1

(None)

Group B

Group B

Group A

NOR2017 SFJ-1660s

NOR2019 MRO-5072s

NOR2019 MRO-5088m

Unknown-2

(None)

Group B

Group A

Group A

NOR2019 TRL-1765m

Unknown-3

(None)

Group B

Group B

Group A

D252N

NOR2019 SFJ-1674m

Unknown-4

(None)

Group A

Group A

Group A

D252N

NOR2019 V-AGD-1737m

  1. The isolates were categorized into genogroups. The groping was based on the phylogenetic grouping (Group A or Group B) of S1 (σ3)/M2 (µ1), L1 (λ3), L2 (λ2) in addition to the presence of S4 (σ1) amino acid substitution V107A or D252N. Eight genogroups were identified including High-1, High-2 and Low-1, Low-2 with reference isolates of known virulence. In addition, four genogroups of unknown virulence were identified (Unknown 1–4). Isolates categorized to each genogroup listed on the right.