Janine M. Wojcieszek and Leigh W. Simmons Divergence in genital morphology may contribute to mechanical reproductive isolation in a millipede Ecology and Evolution 3
The shape of male genitalia often varies considerably between different species. We show that small differences in male genital shape among isolated populations of a single species of Australian millipede are sufficient to hamper successful reproduction between those populations when they are brought together. Our results confirm the importance of selection on male genital morphology in speciation.
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