Fig. 1From: Unique sperm haplotypes are associated with phenotypically different sperm subpopulations in Astyanax fishHoechst 33342 dye treatment typically reveals three subpopulations of hybrid male sperm in flow cytometry. a Sperm from a hybrid male form one population in 0.4× Hanks balanced saline. b Sperm from the same male treated with Hoechst 33342 dye (40 μM) form three subpopulations indicated by arrowsBack to article page