About the Authors
Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, United States of America
The authors have declared that no conflicts of interest exist.
MAFN conceived and designed the experiments. DOB and MAFN performed the pure-species and F1 mating experiments. DOB performed all parts involving the male-parent backcrosses and the mating assays in the female-parent backcrosses. DOB built the recombinational map for D. pseudoobscura. DOB and BAC genotyped the female backcross hybrids. DOB analyzed the data. MAFN contributed reagents/materials/analysis tools. DOB wrote the paper.