Ecological adaptation in Atlantic herring is associated with large shifts in allele frequencies at hundreds of loci

Atlantic herring is widespread in North Atlantic and adjacent waters and is one of the most abundant vertebrates on earth. This species is well suited to explore genetic adaptation due to minute genetic differentiation at selectively neutral loci. Here, we report hundreds of loci underlying ecologic...

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Bibliographic Details
Published in:eLife
Main Authors: Fan Han, Minal Jamsandekar, Mats E Pettersson, Leyi Su, Angela P Fuentes-Pardo, Brian W Davis, Dorte Bekkevold, Florian Berg, Michele Casini, Geir Dahle, Edward D Farrell, Arild Folkvord, Leif Andersson
Format: Article in Journal/Newspaper
Language:English
Published: eLife Sciences Publications Ltd 2020
Subjects:
Atlantic herring
genetic adaptation
evolution
inversion
genotype
ecology
Medicine
R
Science
Q
Biology (General)
QH301-705.5
North Atlantic
Online Access:https://doi.org/10.7554/eLife.61076
https://doaj.org/article/3c6b5aa30c8647b1b2d3595d9657903e
Description
Summary:Atlantic herring is widespread in North Atlantic and adjacent waters and is one of the most abundant vertebrates on earth. This species is well suited to explore genetic adaptation due to minute genetic differentiation at selectively neutral loci. Here, we report hundreds of loci underlying ecological adaptation to different geographic areas and spawning conditions. Four of these represent megabase inversions confirmed by long read sequencing. The genetic architecture underlying ecological adaptation in herring deviates from expectation under a classical infinitesimal model for complex traits because of large shifts in allele frequencies at hundreds of loci under selection.

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