A simple procedure for joint estimation of the long-term rates of sexuality and mutation in predominantly clonal populations, for use with dominant molecular markers


Stacey Lee Thompson, Fax: 514.872.9406; E-mail: stacey.thompson@umontreal.ca


In highly clonal populations, mutation can contribute to the rate of apparent sexuality. To remove this bias, a method is presented that jointly estimates the rates of sexuality (Ns) and mutation (Nµ) for populations, based upon levels of single-locus vs. multilocus clonal identity. This effectively haploid model assumes equilibrium, and can be used with dominant molecular data and in conjunction with organisms of various ploidies. Simulations indicate that while equilibrium can take thousands of generations to attain, and afterwards have a large evolutionary variance, the method gives approximate estimates of Ns.