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1 February 2002 Chromosome Polymorphism in Archey's Frog (Leiopelma archeyi) from New Zealand
David M. Green
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The most primitive frogs in which a sex chromosome system has been determined are members of the endemic New Zealand genus Leiopelma. Two species, Leiopelma pakeka and Leiopelma hochstetteri, have female heterogamety of the ZW/ZZ and 0W/00 types, respectively. Despite its great karyotypic similarity to L. pakeka, a third species, Leiopelma archeyi, has not been know previously to possess heteromorphic sex chromosomes. Herein a highly differentiated putative W chromosome characterized by the addition of a completely heterochromatic short arm is reported from a female L.archeyi from the Whareorino forest of the North Island of New Zealand.

The American Society of Ichthyologists and Herpetologists
David M. Green "Chromosome Polymorphism in Archey's Frog (Leiopelma archeyi) from New Zealand," Copeia 2002(1), 204-207, (1 February 2002).[0204:CPIASF]2.0.CO;2
Accepted: 30 July 2001; Published: 1 February 2002
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