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. 2018 Aug 29;5(8):171539. doi: 10.1098/rsos.171539

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© 2018 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 1. — Chromosome profiles based on flow karyotype measurements showing the relationship between chromosome size and GC content in the grey short-tailed opossum (2n = 18) (a), tammar wallaby (2n = 16) (b), Tasmanian devil (2n = 14) (c) and fat-tailed dunnart (2n = 14) (d) compared with human (2n = 46) (e) at the same scale. X chromosomes are indicated by X in each profile. Marsupial autosomes are variable in size, but have an invariable GC content. By contrast, marsupial X chromosomes have the highest GC content in each genome.