Trout Genome Browser
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chr_1 Full chromosome 1
chr_1:1,679,000..1,723,999 Region of chromosome 1 from 1,679,000 to 1,723,999
GSONMG00082216001 GSONMG00082216001 gene location

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Nat Commun. 2014 Apr 22;5:3657. doi: 10.1038/ncomms4657.

The rainbow trout genome provides novel insights into evolution after whole-genome duplication in vertebrates.

Berthelot C, Brunet F, Chalopin D, Juanchich A, Bernard M, Noel B, Bento P, Da Silva C, Labadie K, Alberti A, Aury JM, Louis A, Dehais P, Bardou P, Montfort J, Klopp C, Cabau C, Gaspin C, Thorgaard GH, Boussaha M, Quillet E, Guyomard R, Galiana D, Bobe J, Volff JN, Genet C, Wincker P, Jaillon O, Roest Crollius H, Guiguen Y


Vertebrate evolution has been shaped by several rounds of whole-genome duplications (WGDs) that are often suggested to be associated with adaptive radiations and evolutionary innovations. Due to an additional round of WGD, the rainbow trout genome offers a unique opportunity to investigate the early evolutionary fate of a duplicated vertebrate genome. Here we show that after 100 million years of evolution the two ancestral subgenomes have remained extremely collinear, despite the loss of half of the duplicated protein-coding genes, mostly through pseudogenization. In striking contrast is the fate of miRNA genes that have almost all been retained as duplicated copies. The slow and stepwise rediploidization process characterized here challenges the current hypothesis that WGD is followed by massive and rapid genomic reorganizations and gene deletions.
Sequences and annotations in EMBL/GenBank/DDBJ

Genome assembly, related gene predictions and goldenpath are available here Master accession number : CCAF000000000
Contig accession numbers : CCAF010000001-CCAF010192415
Scaffold accession numbers : FR904258-FR984198
Chromosomes accession numbers : HG973520-HG973547