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An XX/XY heteromorphic sex chromosome system in the Australian chelid turtle Emydura macquarii: a new piece in the puzzle of sex chromosome evolution in turtles

Martinez, Pedro Alonzo; Ezaz, Tariq; Valenzuela, Nicole; Georges, Arthur; Graves, Jennifer

Description

Chromosomal sex determination is the prevalent system found in animals but is rare among turtles. In fact, heteromorphic sex chromosomes are known in only seven of the turtles possessing genotypic sex determination (GSD), two of which correspond to cryptic sex microchromosomes detectable only with high-resolution cytogenetic techniques. Sex chromosomes were undetected in previous studies of Emydura macquarii, a GSD side-necked turtle. Using comparative genomic hybridization (CGH) and...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
URI: http://hdl.handle.net/1885/60342
Source: Chromosome Research
DOI: 10.1007/s10577-008-1228-4

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