Sökning: onr:"swepub:oai:DiVA.org:uu-526282" >
Adaptation to seaso...
Adaptation to seasonal reproduction and environment-associated factors drive temporal and spatial differentiation in northwest Atlantic herring despite gene flow
-
- Fuentes Pardo, Angela P. (författare)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,Dalhousie Univ, Dept Biol, Halifax, NS, Canada.
-
- Stanley, Ryan (författare)
- Fisheries & Oceans Canada, Maritimes Reg, Dartmouth, NS, Canada.
-
- Bourne, Christina (författare)
- Fisheries & Oceans Canada, Northwest Atlantic Fisheries Ctr, St John, NF, Canada.
-
visa fler...
-
- Singh, Rabindra (författare)
- Fisheries & Oceans Canada, St Andrews Biol Stn, St Andrews, NB, Canada.
-
- Emond, Kim (författare)
- Fisheries & Oceans Canada, Maurice Lamontagne Inst, Mont Joli, PQ, Canada.
-
- Pinkham, Lisa (författare)
- Dept Marine Resources, West Boothbay Harbor, ME USA.
-
- Mcdermid, Jenni L. (författare)
- Gulf Fisheries Ctr, Fisheries & Oceans Canada, Moncton, NB, Canada.
-
- Andersson, Leif (författare)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,Texas A&M Univ, Dept Vet Integrat Biosci, College Stn, TX USA.
-
- Ruzzante, Daniel E. (författare)
- Dalhousie Univ, Dept Biol, Halifax, NS, Canada.
-
visa färre...
-
(creator_code:org_t)
- John Wiley & Sons, 2024
- 2024
- Engelska.
-
Ingår i: Evolutionary Applications. - : John Wiley & Sons. - 1752-4571. ; 17:3
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://uu.diva-port... (primary) (Raw object)
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Understanding how marine organisms adapt to local environments is crucial for predicting how populations will respond to global climate change. The genomic basis, environmental factors and evolutionary processes involved in local adaptation are however not well understood. Here we use Atlantic herring, an abundant, migratory and widely distributed marine fish with substantial genomic resources, as a model organism to evaluate local adaptation. We examined genomic variation and its correlation with environmental variables across a broad environmental gradient, for 15 spawning aggregations in Atlantic Canada and the United States. We then compared our results with available genomic data of northeast Atlantic populations. We confirmed that population structure lies in a fraction of the genome including likely adaptive genetic variants of functional importance. We discovered 10 highly differentiated genomic regions distributed across four chromosomes. Nine regions show strong association with seasonal reproduction. One region, corresponding to a known inversion on chromosome 12, underlies a latitudinal pattern discriminating populations north and south of a biogeographic transition zone on the Scotian Shelf. Genome-environment associations indicate that winter seawater temperature best correlates with the latitudinal pattern of this inversion. The variation at two so-called 'islands of divergence' related to seasonal reproduction appear to be private to the northwest Atlantic. Populations in the northwest and northeast Atlantic share variation at four of these divergent regions, simultaneously displaying significant diversity in haplotype composition at another four regions, which includes an undescribed structural variant approximately 7.7 Mb long on chromosome 8. Our results suggest that the timing and geographic location of spawning and early development may be under diverse selective pressures related to allelic fitness across environments. Our study highlights the role of genomic architecture, ancestral haplotypes and selection in maintaining adaptive divergence in species with large population sizes and presumably high gene flow.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
Nyckelord
- chromosomal inversion
- fisheries
- genomics
- marine fish
- pool-seq
- whole genome
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas