Additional file 1.Distribution of the number of first spermatocytes and spermatids per cyst, and sperm length among 100 members of the family Drosophilidae. Format: DOC Size: 463KB Download file This file can be viewed with: Microsoft Word Viewer Schärer et al. BMC Evolutionary Biology 2008 8:143 doi:10.1186/1471-2148-8-143 |