Wanted - papers on the origin of meiosis and diploidy

One of the students in the Intro Bio course I am teaching at UC Davis is interested in papers on the origin of meiosis and/or the origin of diploidy.  Some papers I have pulled up so far include:

• A Phylogenomic Inventory of Meiotic Genes:: Evidence for Sex in Giardia and an Early Eukaryotic Origin of Meiosis
• Origins of the machinery of recombination and sex
• Using a meiosis detection toolkit to investigate ancient asexual "scandals" and the evolution of sex.
• Primitive forms of meiosis: the possible evolution of meiosis.

• Recombination and the evolution of diploidy.
• Transition from haploidy to diploidy.
• Self-fertilization and the evolution of recombination.
• Haploidy or diploidy: which is better?
• Somatic mutation favors the evolution of diploidy.

Suggestions for others would be welcome.