Skip to main content
Open Access Publications from the University of California

UC San Diego

UC San Diego Electronic Theses and Dissertations bannerUC San Diego

General Reproductive Biology and the Effects of Long-Term Parthenogenesis in Drosophila mercatorum


Purely parthenogenetic strains of Drosophila mercatorum were selected for by Dr. Alan Templeton in 1974 and have been kept in the UC San Diego Drosophila Species Stock Center for close to four decades. The distinct clonal reproduction of parthenogenesis in D. mercatorum is expected to negate sexual selection, select for superior asexual reproduction, and also allow neutral mutations. I investigated this hypothesis by studying the general reproductive biology of sexual and parthenogenetic D. mercatorum. This study showed that 38 years of purely parthenogenetic reproduction have significantly diverged these strains from the sexually reproducing strains in mating propensity, progeny production, sex ratio of the progeny, and virgin egg-laying. Such results suggest parthenogenesis to be an intense divergent force in evolution

Main Content
For improved accessibility of PDF content, download the file to your device.
Current View