Genomic analysis of many nonmodel species has uncovered an incredible diversity of sex
chromosome systems, making it possible to empirically test the rich body of evolutionary …

Animal sex chromosomes typically carry the upstream sex-determining gene that triggers
testis or ovary development and, in some species, are regulated by global dosage …

Until recently, the field of sex chromosome evolution has been dominated by the canonical
unidirectional scenario, first developed by Muller in 1918. This model postulates that sex …

Here we use a chromosome-level genome assembly of a prairie rattlesnake (Crotalus
viridis), together with Hi-C, RNA-seq, and whole-genome resequencing data, to study key …

Far from the line drawings and black-and-white photos of the past, Infectious Diseases and
Pathology of Reptiles features high-quality, color photos of normal anatomy and histology …

Despite the prevalence of sexual reproduction across eukaryotes, there is a remarkable
diversity of sex‐determination mechanisms. The underlying causes of this diversity remain …

Triggers and biological processes controlling male or female gonadal differentiation vary in
vertebrates, with sex determination (SD) governed by environmental factors or simple to …

Sex chromosomes are a great example of a convergent evolution at the genomic level,
having evolved dozens of times just within amniotes. An intriguing question is whether this …

Squamates (lizards, snakes, and their kin such as amphisbaenians, or “worm lizards”)
represent the world's most diverse clade of terrestrial vertebrates with∼ 11,000 described …

Differentiated sex chromosomes are believed to be evolutionarily stable, while poorly
differentiated sex chromosomes are considered to be prone to turnovers. With around 1700 …