In these reviews of the history of studies on the evolution of genetic sex determination, I will explore the different ideas and findings that have led us to our modern understanding of the genomes of sexually dimorphic populations.

See the first part where I review early studies of sex chromosomes

In the second part, I consider theories for the evolution of recombination modifiers, while in the third part, I assess theories for the consequences of modifying recombination.

In the fourth part, I review the role of sex chromosomes in differentiation between populations and speciation.

In my final part I will review the evolution of dominance, and the closely linked evolution of gene expression, in the context of sex chromosome evolution.

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