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. 1995 Jul 18;92(15):6748-52.
doi: 10.1073/pnas.92.15.6748.

Sex proportions of Haemoproteus blood parasites and local mate competition

D Shutler  1 , G F Bennett, A Mullie
Affiliations

Sex proportions of Haemoproteus blood parasites and local mate competition

D Shutler et al. Proc Natl Acad Sci U S A. .

Abstract

Recent genetic evidence suggests that parasitic protozoa often reproduce by "selfing," defined as sexual stages from a single, clonal lineage fertilizing each other. Selfing favors production of an excess of female over male progeny. We tested whether the proportion of male gametocytes of blood parasites of the genus Haemoproteus was affected by variables that could influence the probability of selfing. Proportions of male Haemoproteus gametocytes from 11 passerine host populations were not affected by the age of the parasites' avian hosts, date in season, sex of host, intensity of host's infection, or prevalence of parasites within host populations.

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