Table 2. Homeologous chromosome arm pairs identified in coho salmon and the number of marker pairs supporting the homeologous relationship.

Homeology in Coho Salmon	Number of Marker Pairs Supporting Homeolog Pairings	Homeology in Chinook Salmon (Brieuc et al. 2014)	Homeology in Rainbow Trout (Phillips et al. 2006)	Homeology in Atlantic Salmon (Lien et al. 2011)	Known Phylogenetic Placement of Metacentric Arrangement
Co01b–Co20b	15	Ots02q–Ots32	Omy17q‡–Omy13p	Ssa02q–Ssa12qa†	B
Co02a–Co13b	11	Ots03p–Ots23	Omy03p–Omy02p	Ssa02p–Ssa05q	B*
Co03b–Co08b	15	Ots04q–Ots12q	Omy06q–Omy26	Ssa26–Ssa11qa†	B, C
Co04b–Co11a	17	Ots06q–Ots01q	Omy01q–Omy23	Ssa18qa–Ssa01qa†	B
Co05a–Co16b	10	Ots07p–Ots14p	Omy07p–Omy18p	Ssa17qa–Ssa16qb†	B
Co06b–Co10b	7	Ots09q–Ots27	Omy12q–Omy13q	Ssa03q–Ssa06p	B*
Co07a–Co12b	9	Ots11p–Ots34	Omy19p–Omy10q	Ssa04p–Ssa08q	B*
Co09a–Co19a	16	Ots15p–Ots17	Omy21p–Omy15q	Ssa07p–Ssa17qa	A

Corresponding known homeologous relationships in Chinook salmon, rainbow trout, and Atlantic salmon are shown. The final column designates known conservation of metacentric chromosome with high frequency of duplicated markers. Letter corresponds to phylogenetic placement in Figure 5.

^*Possible earlier chromosomal arrangement (A) and subsequent rearrangement.

^†Homeologous relationships with little or no support in Atlantic salmon (Lien et al. 2011).

^‡We have corrected the homeologous relationship between Omy17q and Omy13p; evidence suggests that this relationship was incorrectly reported as being between Omy17p and Omy13p in previous studies.