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Unusual Diversity of Sex Chromosomes in African Cichlid Fishes

Institute of Science and Technology (IST) Austria, Am Campus 1, 3400 Klosterneuburg, Austria
Department of Biology, University of Maryland, College Park, MD 20742, USA
Author to whom correspondence should be addressed.
Genes 2018, 9(10), 480;
Received: 26 September 2018 / Revised: 26 September 2018 / Accepted: 1 October 2018 / Published: 4 October 2018
(This article belongs to the Section Population and Evolutionary Genetics and Genomics)
PDF [1383 KB, uploaded 13 October 2018]


African cichlids display a remarkable assortment of jaw morphologies, pigmentation patterns, and mating behaviors. In addition to this previously documented diversity, recent studies have documented a rich diversity of sex chromosomes within these fishes. Here we review the known sex-determination network within vertebrates, and the extraordinary number of sex chromosomes systems segregating in African cichlids. We also propose a model for understanding the unusual number of sex chromosome systems within this clade. View Full-Text
Keywords: sex chromosome evolution; African cichlids; sex chromosomes sex chromosome evolution; African cichlids; sex chromosomes

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Gammerdinger, W.J.; Kocher, T.D. Unusual Diversity of Sex Chromosomes in African Cichlid Fishes. Genes 2018, 9, 480.

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