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Karyotypic Variation in the Australian Gekko Phyllodactylus Marmoratus (Gray) (Gekkonidae: Reptilia)

Overview
Journal Chromosoma
Specialty Molecular Biology
Date 1976 Jan 27
PMID 1248335
Citations 41
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Abstract

The gekko Phyllodactylus marmoratus has at least three distinct chromosome races; 2n=39, 2n=26 ZZ/ZW and 2n=34. Specimens from these races are morphologically distinguishable, have a degree of habitat specialization and occur in a defined distribution. The 2n=36 race found in Eastern Australia is the presumed primordial type. The 2n=34 race occurs in Western Australia and is regarded as a fusion derivative. The 2n=36 ZZ/ZW race, which is only found on the Murray River system in Eastern Australia has a heteromorphic sex chromosome system present in the female. Giemsa banding suggests that this heteromorphism is the result of a pericentric inversion.

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