Mitochondrial DNA reveals a mosaic pattern of phylogeographical structure in Atlantic and Mediterranean populations of anchovy (Engraulis encrasicolus)

Molecular Phylogenetics and Evolution
A MagoulasT Patarnello

Abstract

This study extends the geographic coverage of a previous study of mitochondrial DNA restriction fragment length polymorphism in European anchovy. Both studies together include 24 samples representing 17 localities extending from the Black Sea, through the Mediterranean Sea to the eastern Atlantic as far south as Dakar, Senegal. Eighty-eight haplotypes define two clades (A and B) separated by 3.2% sequence divergence. Clade A has a star-like genealogy indicative of a recent population expansion. Clade B has a more complex genealogy, consisting of several haplotypes at intermediate frequencies. The distributions of these clades consist of a mosaic with abrupt changes between some areas and gradients between other areas. Clade A predominates the Black and Aegean seas, but is present throughout the Mediterranean. Unexpectedly, new data show that clade A is also at a high frequency in the Atlantic, from Portugal to at least Senegal. Overall, the level of genetic differentiation among populations is high (F(ST)=0.148, p<0.0001), with the greatest differences between basins. AMOVA reveals four main geographical groups: Atlantic, central Mediterranean, Aegean Sea, and Black Sea. Mismatch distribution clearly indicates historical bottle...Continue Reading

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Citations

Jan 22, 2008·Molecular Phylogenetics and Evolution·Pieternella C LuttikhuizenHenk W van der Veer
Oct 3, 2007·Molecular Ecology·Tomaso PatarnelloRita Castilho
May 10, 2016·Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis·Arda M TonayRaşit Bilgin
Dec 21, 2010·Molecular Phylogenetics and Evolution·Randa MejriSabrina Lo Brutto
Jul 27, 2017·Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis·Takefumi NakazawaNoboru Okuda
Aug 22, 2014·Proceedings. Biological Sciences·Gonçalo SilvaRita Castilho
Jun 13, 2015·Royal Society Open Science·Chrysoula GubiliAndrew M Griffiths
Jun 25, 2017·Scientific Reports·Gaetano CataneseGabriele Procaccini
Jun 8, 2017·Scientific Reports·Gonçalo SilvaRita Castilho
Jul 27, 2021·PeerJ·Sara M FranciscoJoana I Robalo

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