Although sex is a fundamental component of eukaryotic reproduction, the genetic systems
that control sex determination are highly variable. In many organisms the presence of sex …

A major reason for studying plant sex chromosomes is that they may often be
'young'systems. There is considerable evidence for the independent evolution of separate …

The diversity of inflorescences among flowering plants is captivating. Such charm is not only
due to the variety of sizes, shapes, colors, and flowers displayed, but also to the range of …

The idea that sex differences in selection drive the evolution of suppressed recombination
between sex chromosomes is well developed in population genetics. Yet, despite a now …

Polyploidization presents an unusual challenge for species with sex chromosomes, as it can
lead to complex combinations of sex chromosomes that disrupt reproductive development …

The impact of sex chromosomes and their turnover in speciation remains a subject of
ongoing debate in the field of evolutionary biology. Fishes are the largest group of …

Evolutionary rates and strength of selection differ markedly between haploid and diploid
genomes. Any genes expressed in a haploid state will be directly exposed to selection …

The mouse sex chromosomes exhibit an extraordinary level of copy number amplification of
postmeiotically expressed genes [1, 2], driven by an" arms race"(genomic conflict) between …

Dioecious Salix evolved more than 45 million years ago, but have homomorphic sex
chromosomes, suggesting that turnover event (s) prevented major differentiation. Sex …

Eukaryotes with separate males and females display a great diversity in the way they
determine sex, but it is still unclear what evolutionary forces cause transitions between sex …