| Autor: |
Keating SE; Department of Biological Sciences, Marquette University, Milwaukee, WI 53233, USA., Blumer M; Keck Science Department, Scripps College, Claremont, CA 91711, USA., Grismer LL; Herpetology Laboratory, Department of Biology, La Sierra University, Riverside, CA 92515, USA., Lin A; Fauna and Flora International, No (35), 3rd Floor, Shan Gone Condo, Myay Ni Gone Market Street, Sanchaung Township, Yangon 11111, Myanmar., Nielsen SV; Department of Biological Sciences, Marquette University, Milwaukee, WI 53233, USA.; Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, MI 48128, USA.; Department of Herpetology, Florida Museum of Natural History, Gainesville, FL 31611, USA., Thura MK; Myanmar Environment Sustainable Conservation, Yangon 11181, Myanmar., Wood PL Jr; Department of Biological Sciences and Museum of Natural History, Auburn University, Auburn, AL 36849, USA., Quah ESH; Institute of Tropical Biodiversity and Sustainable Development, University Malaysia Terengganu, Kuala Nerus, Terengganu 21030, Malaysia., Gamble T; Department of Biological Sciences, Marquette University, Milwaukee, WI 53233, USA.; Milwaukee Public Museum, 800 W. Wells St., Milwaukee, WI 53233, USA.; Bell Museum of Natural History, University of Minnesota, 2088 Larpenteur Ave. W., St. Paul, MN 55113, USA. |
| Abstrakt: |
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. |
