| Title: | "Asymmetrical positive assortative mating induced by developmental lead (Pb(2+)) exposure in a model system, Drosophila melanogaster" |
| Author(s): | Peterson EK; Yukilevich R; Kehlbeck J; LaRue KM; Ferraiolo K; Hollocher K; Hirsch HVB; Possidente B; |
| Address: | "Department of Biological Sciences, State University of New York at Albany, Albany, NY 12222, USA. Department of Biology, Union College, Schenectady, NY 12308, USA. Department of Chemistry, Union College, Schenectady, NY 12308, USA. Department of Molecular Biology, Princeton University, Princeton, NJ 08544, USA. Department of Geology, Union College, Schenectady, NY 12308, USA. Department of Biology, Skidmore College, Saratoga, Springs, NY 12866, USA" |
| ISSN/ISBN: | 1674-5507 (Print) 1674-5507 (Linking) |
| Abstract: | "Anthropogenic pollutants have the potential to disrupt reproductive strategies. Little is known about how lead (Pb(2+)) exposure disrupts individual-level responses in reproductive behaviors, which are important for fitness. Drosophila melanogaster was used as a model system to determine the effects of: 1) developmental lead exposure on pre-mating reproductive behaviors (i.e., mate preference), and 2) lead exposure and mating preferences on fitness in the F(0) parental generation and F(1) un-exposed offspring. Wild-type strains of D. melanogaster were reared from egg stage to adulthood in control or leaded medium (250 muM PbAc) and tested for differences in: mate preference, male song performance, sex pheromone expression, fecundity, mortality, and body weight. F(0) leaded females preferentially mated with leaded males (i.e., asymmetrical positive assortative mating) in 2-choice tests. This positive assortative mating was mediated by the females (and not the males) and was dependent upon context and developmental exposure to Pb. Neither the courtship song nor the sex pheromone profile expressed by control and leaded males mediated the positive assortative mating in leaded females. Leaded females did not incur a fitness cost in terms of reduced fecundity, increased mortality, or decreased body weight by mating with leaded males. These results suggest that sublethal exposure to lead during development can alter mate preferences in adults, but not fitness measures once lead exposure has been removed. We suggest that changes in mate preference may induce fitness costs, as well as long-term population and multi-generational implications, if pollution is persistent in the environment" |
| Keywords: | cuticular hydrocarbons positive assortative mating random mating species recognition system.; |
| Notes: | "PubMed-not-MEDLINEPeterson, Elizabeth K Yukilevich, Roman Kehlbeck, Joanne LaRue, Kelly M Ferraiolo, Kyle Hollocher, Kurt Hirsch, Helmut V B Possidente, Bernard eng England 2018/03/02 Curr Zool. 2017 Apr; 63(2):195-203. doi: 10.1093/cz/zox016. Epub 2017 Mar 13" |
