Evidence of extensive mitochondrial introgression with nearly complete substitution of the typical <i>Squalius pyrenaicus</i>‐like mtDNA of the <i>Squalius alburnoides</i> complex (Cyprinidae) in an independent Iberian drainage

Abstract

The first occurrence of massive mitochondrial introgression of Squalius aradensis genes in Squalius alburnoides , a hybridogenetic complex that usually carries mtDNA of its maternal ancestor ( Squalius pyrenaicus ) is reported. Possible implications of such introgressions for the history of the complex are discussed.