Table 3 Homeologous chromosome pairs in Brook Trout after the salmonid-specific whole genome duplication event [as determined by linkage maps in study herein and Sutherland et al. (2016)]
Homeolog 1Homeolog 2
BC01aBC05b
BC01baBC36a
BC02a5BC375/BC02bb
BC02bBC37/BC02ab
BC03a2BC422
BC03bBC21
BC04aBC17
BC04b4BC414
BC05a7BC397
BC06aBC40
BC06b6BC286
BC07aBC33
BC07b1BC291
BC08aBC09
BC08b3BC143
BC10BC13
BC11BC22
BC12BC35
BC15BC20
BC16BC27
BC18BC30
BC19BC31
BC23BC34
BC24BC26
BC25BC38
BC32BC29
  • Current undifferentiated homeologous arms were identified through comparisons with the Arctic Char linkage map (Nugent et al. 2017) and the Atlantic Salmon genome (Lien et al. 2016). Chromosomes that still form tetrasomic pairings during meiosis are designated with superscript numbers 1–7. This numbering aids in comparisons between this table and Table 2 in Nugent et al. (2017). An additional chromosome pairing shows residual tetrasomy in Oncorhynchus (Kodama et al. 2014).

  • a Comparative mapping suggests a similar tetrasomic pairing may still occur in Brook Trout.

  • b Pairs with weak relationships.