ASIDE: Are sex and recombination interchangeable???

In general, NO, because sex involves both segregation and recombination.

• Segregation at one locus can exert selection for/against sex

(Kirkpatrick and Jenkins 1989; Chasnov 2000; Agrawal 2001*)

In haploid models, however, the probability of sex and the probability of recombination enter into models as their product.

(True also for special diploid models where HW is maintained by selection.)

• Models that examine the fate of alleles that modify recombination rates inform us about the fate of alleles that modify the probability of engaging in sex.

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