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Title

How complex is the Bufo bufo species group?

AuthorsArntzen, Jan W.; Recuero, Ernesto ; Martínez-Solano, Íñigo
Issue Date2013
Citation17th European Congress of Herpetology (2013)
AbstractThe common toad (Bufo bufo) has an enormous range, from Tunesia to deep into Russia. A range-wide recent study revealed a marked genetic differentiation, with one species in and adjacent to the Iberian Peninsula (Bufo spinosus), two species in the Caucasus and the—still very wide ranging—Bufo bufo. We expanded upon our work as follows. (1) With mitochondrial and nuclear gene sequences, we confirmed the deep split and that the mutual range border of B. bufo and B. spinosus is in France. (2)We searched for morphological characters that would discriminate the species in France and we tested some potentially informative characters on museum material (Leiden, Paris and Madrid) covering a North to South transect in western Europe, from the UK to southern Spain. (3) We identified the position of the contact zone in France, from the Atlantic coast to the upper Rhone valley near Lyon, which gave us some clues about the “why” of morphological species differentiation. Finally, (4) we scrutinized published nuclear data to investigate claims of hybridization and extensive introgression among species across the Mediterranean.
DescriptionResumen del trabajo presentado al 17th European Congress of Herpetology, celebrado del 22 al 27 de agosto de 2013 en Veszprém (Hungria).-- et al.
URIhttp://hdl.handle.net/10261/146683
Appears in Collections:(IREC) Comunicaciones congresos
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