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- Title
Sex Chromosome Turnover in Bent-Toed Geckos (Cyrtodactylus).
- Authors
Keating, Shannon E.; Blumer, Madison; Grismer, L. Lee; Lin, Aung; Nielsen, Stuart V.; Thura, Myint Kyaw; Wood Jr., Perry L.; Quah, Evan S. H.; Gamble, Tony
- Abstract
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.
- Subjects
SEX chromosomes; GECKOS; HEMIDACTYLUS; SQUAMATA; REPTILES; LIZARDS
- Publication
Genes, 2021, Vol 12, Issue 1, p116
- ISSN
2073-4425
- Publication type
Article
- DOI
10.3390/genes12010116