Abstract
The mitochondrial cytochrome b gene ofLarus argentatus, L. fuscus andL. cachinnans michahellis was amplified by PCR and partially sequenced. Sequence analysis by PAUP 3.1 indicated thatL. argentatus andL. cachinnans are genetically distinct and separated by 2% base exchanges.L. cachinnans seems to be closer related toL. fuscus than toL. argentatus. The three taxa represent a superspecies. Our data imply that gene flow between the 3 gull species must be negligible and furthermore, that they represent rather young species which may have split 100 000–500 000 years ago. The recognition ofL. cachinnans as a distinct species is supported by molecular evidence.
Zusammenfassung
Ein Teilstück des mitochondriellen Cytochrom-b Gens vonLarus argentatus, L. cachinnans michahellis undL. fuscus wurde mittels PCR amplifiziert und sequenziert. Der Sequenzvergleich mittels PAUP 3.1 zeigt, daß Weißkopfmöwe und Silbermöwe genetisch klar getrennt sind und sich durch 2% Basenaustausche unterscheiden. Weißkopf- und Heringsmöwe stehen sich näher als Weißkopf- und Silbermöwe. Diese 3 Möwenarten unterliegen keinem signifikanten Genfluß und bilden vermutlich eine Superspezies. Aus der Dimension der Basenaustausche kann man schätzen, daß es sich um relativ junge, vielleicht 100 000–500 000 Jahre alte Taxa handeln muß. Die Abtrennung vonL. cachinnans als eigene Art ist molekulargenetisch demnach gerechtfertigt.
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Wink, M., Kahl, U. & Heidrich, P. Lassen sich Silber-, Weißkopf- und Heringsmöwe (Larus argentatus, L. cachinnans, L. fuscus) molekulargenetisch unterscheiden?. J Ornithol 135, 73–80 (1994). https://doi.org/10.1007/BF01640276
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DOI: https://doi.org/10.1007/BF01640276