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Resolution and evolution of the duck-billed paltypus karyotype with an X1Y1X2Y2X3Y3X4Y4X5Y5 male sex chromosome constitution

Rens, Willem; Gruetzner, Frank; O'Brien, Patricia C M; Fairclough, H; Graves, Jennifer; Ferguson-Smith, Malcolm A

Description

The platypus (2n = 52) has a complex karyotype that has been controversial over the last three decades. The presence of unpaired chromosomes and an unknown sex-determining system especially has defied attempts at conventional analysis. This article reports on the preparation of chromosome-specific probes from flow-sorted chromosomes and their application in the identification and classification of all platypus chromosomes. This work reveals that the male karyotype has 21 pairs of chromosomes...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
URI: http://hdl.handle.net/1885/81078
Source: PNAS - Proceedings of the National Academy of Sciences of the United States of America
DOI: 10.1073/pnas.0405702101

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