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Non-homologous sex chromosomes of birds and snakes share repetitive sequences

O'Meally, Denis; Patel, Hardip; Stiglec, Rami; Sarre, Stephen; Georges, Arthur; Graves, Jennifer; Ezaz, Tariq

Description

Snake sex chromosomes provided Susumo Ohno with the material on which he based his theory of how sex chromosomes differentiate from autosomal pairs. Like birds, snakes have a ZZ male/ZW female sex chromosome system, in which the snake Z is a macrochromosome much the same size as the bird Z. However, the gene content shows clearly that the snake and bird Z chromosomes are completely non-homologous. The molecular aspect of W chromosome degeneration in snakes remains largely unexplored. We used...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
URI: http://hdl.handle.net/1885/62275
Source: Chromosome Research
DOI: 10.1007/s10577-010-9152-9

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