Are assortative mating and genital divergence driven by reinforcement?

article Are assortative mating and genital divergence driven by reinforcement? published yes Johan Hollander author Mauricio Montaño-Rendón author Giuseppe Bianco author Xi Yang author Anja M Westram author 3C147470-F248-11E8-B48F-1D18A9856A870000-0003-1050-4969 Ludovic Duvaux author David G. Reid author Roger K. Butlin author BeVi department The evolution of assortative mating is a key part of the speciation process. Stronger assortment, or greater divergence in mating traits, between species pairs with overlapping ranges is commonly observed, but possible causes of this pattern of reproductive character displacement are difficult to distinguish. We use a multidisciplinary approach to provide a rare example where it is possible to distinguish among hypotheses concerning the evolution of reproductive character displacement. We build on an earlier comparative analysis that illustrated a strong pattern of greater divergence in penis form between pairs of sister species with overlapping ranges than between allopatric sister-species pairs, in a large clade of marine gastropods (Littorinidae). We investigate both assortative mating and divergence in male genitalia in one of the sister-species pairs, discriminating among three contrasting processes each of which can generate a pattern of reproductive character displacement: reinforcement, reproductive interference and the Templeton effect. We demonstrate reproductive character displacement in assortative mating, but not in genital form between this pair of sister species and use demographic models to distinguish among the different processes. Our results support a model with no gene flow since secondary contact and thus favor reproductive interference as the cause of reproductive character displacement for mate choice, rather than reinforcement. High gene flow within species argues against the Templeton effect. Secondary contact appears to have had little impact on genital divergence. https://research-explorer.ista.ac.at/download/9915/9916/2018_EvolutionLetters_Hollander.pdf application/pdfno Wiley2018 eng Evolution Letters 2056-3744 2056-3744 30564439 00045299000000210.1002/evl3.85 26557-566 https://research-explorer.ista.ac.at/record/9929 Hollander, J., Montaño-Rendón, M., Bianco, G., Yang, X., Westram, A. M., Duvaux, L., … Butlin, R. K. (2018). Are assortative mating and genital divergence driven by reinforcement? Evolution Letters. Wiley. <a href="https://doi.org/10.1002/evl3.85">https://doi.org/10.1002/evl3.85</a> Hollander, Johan, Mauricio Montaño-Rendón, Giuseppe Bianco, Xi Yang, Anja M Westram, Ludovic Duvaux, David G. Reid, and Roger K. Butlin. “Are Assortative Mating and Genital Divergence Driven by Reinforcement?” Evolution Letters. Wiley, 2018. <a href="https://doi.org/10.1002/evl3.85">https://doi.org/10.1002/evl3.85</a>. Hollander, Johan, et al. “Are Assortative Mating and Genital Divergence Driven by Reinforcement?” Evolution Letters, vol. 2, no. 6, Wiley, 2018, pp. 557–66, doi:<a href="https://doi.org/10.1002/evl3.85">10.1002/evl3.85</a>. J. Hollander et al., “Are assortative mating and genital divergence driven by reinforcement?,” Evolution Letters, vol. 2, no. 6. Wiley, pp. 557–566, 2018. J. Hollander, M. Montaño-Rendón, G. Bianco, X. Yang, A.M. Westram, L. Duvaux, D.G. Reid, R.K. Butlin, Evolution Letters 2 (2018) 557–566. Hollander J, Montaño-Rendón M, Bianco G, Yang X, Westram AM, Duvaux L, Reid DG, Butlin RK. 2018. Are assortative mating and genital divergence driven by reinforcement? Evolution Letters. 2(6), 557–566. Hollander J, Montaño-Rendón M, Bianco G, et al. Are assortative mating and genital divergence driven by reinforcement? Evolution Letters. 2018;2(6):557-566. doi:<a href="https://doi.org/10.1002/evl3.85">10.1002/evl3.85</a> 99152021-08-16T07:30:00Z2024-10-21T06:02:42Z