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 …

Despite decades of cytogenetic and genomic research of dynamic sex chromosome
evolution in teleost fishes, multiple sex chromosomes have been largely neglected. In this …

The loss of recombination between sex chromosomes has occurred repeatedly throughout
nature, with important implications for their subsequent evolution. Explanations for this …

Background Sex chromosomes have arisen independently in a wide variety of species, yet
they share common characteristics, including the presence of suppressed recombination …

The quality of genome assemblies has improved rapidly in recent years due to continual
advances in sequencing technology, assembly approaches, and quality control. In the field …

The Y chromosome usually plays a critical role in determining male sex and comprises
sequence classes that have experienced unique evolutionary trajectories. Here we …

How the avian sex chromosomes first evolved from autosomes remains elusive as 100
million years (My) of divergence and degeneration obscure their evolutionary history. The …

The chicken continues to hold its position as a leading model organism within many areas of
research, as well as being a major source of protein for human consumption. The First …

Y chromosomes across diverse species convergently evolve a gene-poor, heterochromatic
organization enriched for duplicated genes, LTR retrotransposons, and satellite DNA …

Studies of Y Chromosome evolution have focused primarily on gene decay, a consequence
of suppression of crossing-over with the X Chromosome. Here, we provide evidence that …