Genomic architecture of haddock (Melanogrammus aeglefinus) shows expansions of innate immune genes and short tandem repeats ...

Abstract Background Increased availability of genome assemblies for non-model organisms has resulted in invaluable biological and genomic insight into numerous vertebrates, including teleosts. Sequencing of the Atlantic cod (Gadus morhua) genome and the genomes of many of its relatives (Gadiformes)...

Full description

Bibliographic Details
Main Authors: Tørresen, Ole, Brieuc, Marine, Solbakken, Monica, Sørhus, Elin, Nederbragt, Alexander, Jakobsen, Kjetill, Meier, Sonnich, Edvardsen, Rolf, Jentoft, Sissel
Format: Article in Journal/Newspaper
Language:unknown
Published: figshare 2018
Subjects:
Online Access:https://dx.doi.org/10.6084/m9.figshare.c.4065584.v1
https://springernature.figshare.com/collections/Genomic_architecture_of_haddock_Melanogrammus_aeglefinus_shows_expansions_of_innate_immune_genes_and_short_tandem_repeats/4065584/1
Description
Summary:Abstract Background Increased availability of genome assemblies for non-model organisms has resulted in invaluable biological and genomic insight into numerous vertebrates, including teleosts. Sequencing of the Atlantic cod (Gadus morhua) genome and the genomes of many of its relatives (Gadiformes) demonstrated a shared loss of the major histocompatibility complex (MHC) II genes 100 million years ago. An improved version of the Atlantic cod genome assembly shows an extreme density of tandem repeats compared to other vertebrate genome assemblies. Highly contiguous assemblies are therefore needed to further investigate the unusual immune system of the Gadiformes, and whether the high density of tandem repeats found in Atlantic cod is a shared trait in this group. Results Here, we have sequenced and assembled the genome of haddock (Melanogrammus aeglefinus) – a relative of Atlantic cod – using a combination of PacBio and Illumina reads. Comparative analyses reveal that the haddock genome contains an even higher ...