Atlantic mackerel population structure does not support genetically distinct spawning components.

Autor:	Manuzzi A; AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain., Aguirre-Sarabia I; AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain., Díaz-Arce N; AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain., Bekkevold D; DTU Aqua, National Institute of Aquatic Resources, Section for Marine Living Resources, Silkeborg, Denmark., Jansen T; DTU Aqua, National Institute of Aquatic Resources, Section for Marine Living Resources, Silkeborg, Denmark.; GINR, Greenland Institute of Natural Resources, Nuuk, Greenland., Gomez-Garrido J; Centro Nacional de Análisis Genómico (CNAG), Barcelona, Spain.; Universitat de Barcelona (UB), Barcelona, Spain., Alioto TS; Centro Nacional de Análisis Genómico (CNAG), Barcelona, Spain.; Universitat de Barcelona (UB), Barcelona, Spain., Gut M; Centro Nacional de Análisis Genómico (CNAG), Barcelona, Spain.; Universitat de Barcelona (UB), Barcelona, Spain., Castonguay M; Maurice Lamontagne Institute, Fisheries and Oceans Canada, Mont-Joli, Canada, Mont-Joli, Canada., Sanchez-Maroño S; AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain., Álvarez P; AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain., Rodriguez-Ezpeleta N; AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain.
Jazyk:	angličtina
Zdroj:	Open research Europe [Open Res Eur] 2024 Apr 24; Vol. 4, pp. 82. Date of Electronic Publication: 2024 Apr 24 (Print Publication: 2024).
DOI:	10.12688/openreseurope.17365.1
Abstrakt:	Background: The Atlantic mackerel, Scomber scombrus (Linnaeus, 1758) is a commercially valuable migratory pelagic fish inhabiting the northern Atlantic Ocean and the Mediterranean Sea. Given its highly migratory behaviour for feeding and spawning, several studies have been conducted to assess differentiation among spawning components to better define management units, as well as to investigate possible adaptations to comprehend and predict recent range expansion northwards. Methods: Here, a high-quality genome of S. scombrus was sequenced and annotated, as an increasing number of population genetic studies have proven the relevance of reference genomes to investigate genomic markers/regions potentially linked to differences at finer scale. Such reference genome was used to map Restriction-site-associated sequencing (RAD-seq) reads for SNP discovery and genotyping in more than 500 samples distributed along the species range. The resulting genotyping tables have been used to perform connectivity and adaptation analyses. Results: The assembly of the reference genome for S. scombrus resulted in a high-quality genome of 741 Mb. Our population genetic results show that the Atlantic mackerel consist of three previously known genetically isolated units (Northwest Atlantic, Northeast Atlantic, Mediterranean), and provide no evidence for genetically distinct spawning components within the Northwest or Northeast Atlantic. Conclusions: Therefore, our findings resolved previous uncertainties by confirming the absence of genetically isolated spawning components in each side of the northern Atlantic, thus rejecting homing behaviour and the need to redefine management boundaries in this species. In addition, no further genetic signs of ongoing adaptation were detected in this species. Competing Interests: No competing interests were disclosed. (Copyright: © 2024 Manuzzi A et al.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu