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Article

Sex Chromosome Turnover in Bent-Toed Geckos (Cyrtodactylus)

1
Department of Biological Sciences, Marquette University, Milwaukee, WI 53233, USA
2
Keck Science Department, Scripps College, Claremont, CA 91711, USA
3
Herpetology Laboratory, Department of Biology, La Sierra University, Riverside, CA 92515, USA
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Fauna and Flora International, No (35), 3rd Floor, Shan Gone Condo, Myay Ni Gone Market Street, Sanchaung Township, Yangon 11111, Myanmar
5
Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, MI 48128, USA
6
Department of Herpetology, Florida Museum of Natural History, Gainesville, FL 31611, USA
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Myanmar Environment Sustainable Conservation, Yangon 11181, Myanmar
8
Department of Biological Sciences and Museum of Natural History, Auburn University, Auburn, AL 36849, USA
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Institute of Tropical Biodiversity and Sustainable Development, University Malaysia Terengganu, Kuala Nerus, Terengganu 21030, Malaysia
10
Milwaukee Public Museum, 800 W. Wells St., Milwaukee, WI 53233, USA
11
Bell Museum of Natural History, University of Minnesota, 2088 Larpenteur Ave. W., St. Paul, MN 55113, USA
*
Author to whom correspondence should be addressed.
Genes 2021, 12(1), 116; https://doi.org/10.3390/genes12010116
Received: 31 December 2020 / Revised: 13 January 2021 / Accepted: 14 January 2021 / Published: 19 January 2021
Lizards and snakes (squamates) are known for their varied sex determining systems, and gecko lizards are especially diverse, having evolved sex chromosomes independently multiple times. While sex chromosomes frequently turnover among gecko genera, intrageneric turnovers are known only from Gekko and Hemidactylus. Here, we used RADseq to identify sex-specific markers in two species of Burmese bent-toed geckos. We uncovered XX/XY sex chromosomes in Cyrtodactylus chaunghanakwaensis and ZZ/ZW sex chromosomes in Cyrtodactylus pharbaungensis. This is the third instance of intrageneric turnover of sex chromosomes in geckos. Additionally, Cyrtodactylus are closely related to another genus with intrageneric turnover, Hemidactylus. Together, these data suggest that sex chromosome turnover may be common in this clade, setting them apart as exceptionally diverse in a group already known for diverse sex determination systems. View Full-Text
Keywords: Gekkota; lizard; RADseq; synteny Gekkota; lizard; RADseq; synteny
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MDPI and ACS Style

Keating, S.E.; Blumer, M.; Grismer, L.L.; Lin, A.; Nielsen, S.V.; Thura, M.K.; Wood, P.L., Jr.; Quah, E.S.H.; Gamble, T. Sex Chromosome Turnover in Bent-Toed Geckos (Cyrtodactylus). Genes 2021, 12, 116. https://doi.org/10.3390/genes12010116

AMA Style

Keating SE, Blumer M, Grismer LL, Lin A, Nielsen SV, Thura MK, Wood PL Jr., Quah ESH, Gamble T. Sex Chromosome Turnover in Bent-Toed Geckos (Cyrtodactylus). Genes. 2021; 12(1):116. https://doi.org/10.3390/genes12010116

Chicago/Turabian Style

Keating, Shannon E., Madison Blumer, L. L. Grismer, Aung Lin, Stuart V. Nielsen, Myint K. Thura, Perry L. Wood Jr., Evan S.H. Quah, and Tony Gamble. 2021. "Sex Chromosome Turnover in Bent-Toed Geckos (Cyrtodactylus)" Genes 12, no. 1: 116. https://doi.org/10.3390/genes12010116

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