Next Article in Journal
Whole Exome Sequencing Identifies New Host Genomic Susceptibility Factors in Empyema Caused by Streptococcus pneumoniae in Children: A Pilot Study
Next Article in Special Issue
Speciation Theory of Carcinogenesis Explains Karyotypic Individuality and Long Latencies of Cancers
Previous Article in Journal
Shared and Species-Specific Patterns of Nascent Y Chromosome Evolution in Two Guppy Species
Previous Article in Special Issue
Karyotype Evolution in Birds: From Conventional Staining to Chromosome Painting

Did Lizards Follow Unique Pathways in Sex Chromosome Evolution?

Institute for Applied Ecology, University of Canberra, Canberra 2616, Australia
Authors to whom correspondence should be addressed.
Genes 2018, 9(5), 239;
Received: 28 February 2018 / Revised: 26 April 2018 / Accepted: 26 April 2018 / Published: 3 May 2018
(This article belongs to the Special Issue Chromosomal Evolution)
Reptiles show remarkable diversity in modes of reproduction and sex determination, including high variation in the morphology of sex chromosomes, ranging from homomorphic to highly heteromorphic. Additionally, the co-existence of genotypic sex determination (GSD) and temperature-dependent sex determination (TSD) within and among sister clades makes this group an attractive model to study and understand the evolution of sex chromosomes. This is particularly so with Lizards (Order Squamata) which, among reptiles, show extraordinary morphological diversity. They also show no particular pattern of sex chromosome degeneration of the kind observed in mammals, birds and or even in snakes. We therefore speculate that sex determination sensu sex chromosome evolution is labile and rapid and largely follows independent trajectories within lizards. Here, we review the current knowledge on the evolution of sex chromosomes in lizards and discuss how sex chromosome evolution within that group differs from other amniote taxa, facilitating unique evolutionary pathways. View Full-Text
Keywords: lizards; genotypic sex determination (GSD); sex-chromosome evolution lizards; genotypic sex determination (GSD); sex-chromosome evolution
Show Figures

Figure 1

MDPI and ACS Style

Alam, S.M.I.; Sarre, S.D.; Gleeson, D.; Georges, A.; Ezaz, T. Did Lizards Follow Unique Pathways in Sex Chromosome Evolution? Genes 2018, 9, 239.

AMA Style

Alam SMI, Sarre SD, Gleeson D, Georges A, Ezaz T. Did Lizards Follow Unique Pathways in Sex Chromosome Evolution? Genes. 2018; 9(5):239.

Chicago/Turabian Style

Alam, Shayer Mahmood Ibney, Stephen D. Sarre, Dianne Gleeson, Arthur Georges, and Tariq Ezaz. 2018. "Did Lizards Follow Unique Pathways in Sex Chromosome Evolution?" Genes 9, no. 5: 239.

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop