TY - JOUR
T1 - Did Lizards Follow Unique Pathways in Sex Chromosome Evolution?
AU - Alam, Shayer Mahmood Ibney
AU - Sarre, Stephen D.
AU - Gleeson, Dianne
AU - Georges, Arthur
AU - Ezaz, Tariq
N1 - Funding Information:
Acknowledgments: S.M.I.A. is supported by the International Research Training Program-Higher Degree by Research (RTP-HDR) Scholarship of the University of Canberra.
Funding Information:
Author Contributions: T.E. developed the idea and all authors contributed in developing initial structure of the manuscript and editing. T.E. and S.M.I.A. wrote the paper with contributions from S.D.S., D.G. and A.G. This paper is partially supported by an ARC Discovery Grant (DP170101147).
Publisher Copyright:
© 2018 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2018/5
Y1 - 2018/5
N2 - 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.
AB - 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.
KW - lizards
KW - genotypic sex determination (GSD)
KW - sex-chromosome evolution
KW - Genotypic sex determination (GSD)
KW - Lizards
KW - Sex-chromosome evolution
UR - http://www.scopus.com/inward/record.url?scp=85047405776&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/lizards-follow-unique-pathways-sex-chromosome-evolution
U2 - 10.3390/genes9050239
DO - 10.3390/genes9050239
M3 - Review article
SN - 2073-4425
VL - 9
SP - 1
EP - 16
JO - Genes
JF - Genes
IS - 5
M1 - 239
ER -