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Reproduction and hybrid load in all-hybrid populations of Rana esculenta water frogs in Denmark.

Evolution; international journal of organic evolution - 1 Jun 2005

Christiansen Ditte G, Fog Kåre, Pedersen Bo V, Boomsma Jacobus J

Abstract excerpt

All-hybrid populations of the water frog, Rana esculenta, are exceptional in consisting of independently and to some extent sexually reproducing interspecific hybrids. In most of its range R. esculenta reproduces hemiclonally with one of the parental species, R. lessonae or R. ridibunda, but viable populations of diploid and triploid hybrids, in which no individuals of the parental species have been found, exist...

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PMID: 16050110

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