Trans-Arctic dispersals and the evolution of a circumpolar marine fish species complex, the capelin (Mallotus villosus)

Molecular Ecology
Julian J DodsonFrederic Lecomte


Trans-Arctic dispersals and population and range expansions during the Pleistocene enhanced opportunities for evolutionary diversification and contributed to the process of speciation within the capelin, a northern marine-fish complex exhibiting a circumpolar distribution. Capelin is composed of four highly divergent and geographically discrete mitochondrial DNA (mtDNA) clades (609 bp; cytochrome b). Two clades occur in the North Atlantic, one associated with Canadian Atlantic waters, including Hudson Bay, and the second distributed from West Greenland to the Barents Sea. Two additional clades occur in the Arctic and northeast Pacific Oceans, representing the most recent divergence within the capelin phylogenetic tree. Judged from mtDNA diversity, capelin populations comprising all clades experienced at least one demographic and spatial reduction-expansion episode during recent Pleistocene glaciations that imprinted their molecular architecture. The large contemporary populations in the northeast Pacific and Arctic Oceans exhibited significant genetic structure whereas no such structure was detected in the equally extensive North Atlantic clades. All clades are characterized by one or two prevalent mtDNA haplotypes distributed ...Continue Reading


Apr 20, 2014·PloS One·Kara K S LaytonPaul D N Hebert
Jul 3, 2010·Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan·Sayuri TsurudaHiroshi Hiwaki
Dec 21, 2012·Molecular Ecology Resources·Megan R McCuskerPaul Bentzen
Mar 31, 2015·PloS One·Ellen L KenchingtonLorraine C Hamilton
May 24, 2018·PloS One·Astrid TempestiniFrance Dufresne
May 23, 2018·Molecular Biology and Evolution·Lisa ByrneStéphane Aris-Brosou
Feb 13, 2018·Journal of Molecular Evolution·Tzitziki Loeza-Quintana, Sarah J Adamowicz
Jul 17, 2020·Journal of Evolutionary Biology·Hanna LaakkonenRisto Väinölä
Nov 22, 2016·PloS One·Kara K S LaytonPaul D N Hebert


Aug 1, 1989·Proceedings of the National Academy of Sciences of the United States of America·T D KocherA C Wilson
Jan 1, 1984·Journal of Molecular Evolution·J C AviseJ Arnold
May 7, 1998·Proceedings. Biological Sciences·J C Avise, D Walker
Oct 27, 1998·Proceedings. Biological Sciences·J C AviseG C Johns
Jan 27, 1999·Bioinformatics·D Posada, K A Crandall
Jun 25, 1999·Molecular Phylogenetics and Evolution·M K Harrison, B J Crespi
Feb 12, 2000·Proceedings. Biological Sciences·O E Gaggiotti, Laurent Excoffier
Oct 26, 2000·Molecular Ecology·M ClementK A Crandall
Aug 30, 2001·The Biological Bulletin·J P Wares
Feb 8, 2002·Evolution; International Journal of Organic Evolution·J P Wares, C W Cunningham
Jan 10, 2003·Molecular Biology and Evolution·Nicolas RayLaurent Excoffier
Apr 23, 2004·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·G M Hewitt
Nov 18, 2006·Genome Génome / Conseil National De Recherches Canada·Mark W CoulsonSteven M Carr
Apr 19, 2007·Evolution; International Journal of Organic Evolution·Raisa NikulaRisto Väinölä

Related Concepts

DNA, Mitochondrial
Cytochrome B Activity
Labrador retriever
Human Geography
Sequence Determinations, DNA
Genetic Structures
Mallotus villosus
Mitochondrial DNA Location

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Sexual Dimorphism in Neurodegeneration

There exist sex differences in neurodevelopmental and neurodegenerative disorders. For instance, multiple sclerosis is more common in women, whereas Parkinson’s disease is more common in men. Here is the latest research on sexual dimorphism in neurodegeneration

HLA Genetic Variation

HLA genetic variation has been found to confer risk for a wide variety of diseases. Identifying these associations and understanding their molecular mechanisms is ongoing and holds promise for the development of therapeutics. Find the latest research on HLA genetic variation here.

Super-resolution Microscopy

Super-resolution microscopy is the term commonly given to fluorescence microscopy techniques with resolutions that are not limited by the diffraction of light. Here are the latest discoveries pertaining to super-resolution microscopy.

Genetic Screens in iPSC-derived Brain Cells

Genetic screening is a critical tool that can be employed to define and understand gene function and interaction. This feed focuses on genetic screens conducted using induced pluripotent stem cell (iPSC)-derived brain cells.

Brain Lower Grade Glioma

Low grade gliomas in the brain form from oligodendrocytes and astrocytes and are the slowest-growing glioma in adults. Discover the latest research on these brain tumors here.

CD4/CD8 Signaling

Cluster of differentiation 4 and 8 (CD8 and CD8) are glycoproteins founds on the surface of immune cells. Here is the latest research on their role in cell signaling pathways.

Alignment-free Sequence Analysis Tools

Alignment-free sequence analyses have been applied to problems ranging from whole-genome phylogeny to the classification of protein families, identification of horizontally transferred genes, and detection of recombined sequences. Here is the latest research.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.