Male and female contributions to behavioral isolation in darters as a function of genetic distance and color distance

Moran, Rachel L.; Zhou, Muchu; Catchen, Julian M.; Fuller, Rebecca C.

doi:10.1111/evo.13321

Cited by 42 publications

(142 citation statements)

References 102 publications

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“…This pattern is consistent with recent work on darter fish, which showed that only males diverged in their mating preferences (Moran et al. ; Mendelson et al. ).…”

Section: Discussionsupporting

confidence: 92%

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The evolution of male and female mating preferences inDrosophilaspeciation*

Yukilevich

Peterson

2019

Evolution

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The relative importance of male and female mating preferences in causing sexual isolation between species remains a major unresolved question in speciation. Despite previous work showing that male courtship bias and/or female copulation bias for conspecifics occur in many taxa, the present study is one of the first large‐scale works to study their relative divergence. To achieve this, we used data from the literature and present experiments across 66 Drosophila species pairs. Our results revealed that male and female mate preferences are both ubiquitous in Drosophila but evolved largely independently, suggesting different underlying evolutionary and genetic mechanisms. Moreover, their relative divergence strongly depends on the geographical relationship of species. Between allopatric species, male courtship and female copulation preferences diverged at very similar rates, evolving approximately linearly with time of divergence. In sharp contrast, between sympatric species pairs, female preferences diverged much more rapidly than male preferences and were the only drivers of enhanced sexual isolation in sympatry and Reproductive Character Displacement (RCD). Not only does this result suggest that females are primarily responsible for such processes as reinforcement, but it also implies that evolved female preferences may reduce selection for further divergence of male courtship preferences in sympatry.

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“…This pattern is consistent with recent work on darter fish, which showed that only males diverged in their mating preferences (Moran et al. ; Mendelson et al. ).…”

Section: Discussionsupporting

confidence: 92%

“…Moreover, a recent comparative study examined male and female mating preferences between multiple species of darter fish (Martin and Mendelson ; Moran et al. ; Mendelson et al. ).…”

mentioning

confidence: 99%

The evolution of male and female mating preferences inDrosophilaspeciation*

Yukilevich

Peterson

2019

Evolution

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“…Regardless of the mode of selection acting on male mate choice, our results highlight the potentially significant and often overlooked role of male choice in reproductive isolation and speciation, adding to recent findings in other systems (Moran et al. ). We suggest that further study of the mechanisms by which male mate discrimination evolves would provide valuable insight into the selection pressures driving the formation of reproductively isolating barriers.…”

Section: Discussionsupporting

confidence: 75%

Male mate choice via cuticular hydrocarbon pheromones drives reproductive isolation betweenDrosophilaspecies

2017

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Mate discrimination is a key mechanism restricting gene flow between species. While studied extensively with respect to female mate choice, mechanisms of male mate choice between species are far less studied. Thus, we have little knowledge of the relative frequency, importance, or overall contribution of male mate discrimination to reproductive isolation. In the present study, we estimated the relative contributions of male and female choice to reproductive isolation between Drosophila simulans and D. sechellia, and show that male mate discrimination accounts for the majority of the current isolation between these species. We further demonstrate that males discriminate based on female cuticular hydrocarbon pheromones, and collect evidence supporting the hypothesis that male mate discrimination may alleviate the costs associated with heterospecific courtship and mating. Our findings highlight the potentially significant contribution of male mate choice to the formation of reproductive isolating barriers, and thus the speciation process. K E Y W O R D S :Male mate choice, reproductive isolation, courtship, behavior, speciation, pheromones.

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“…Moran et al. () also concluded that male preference for conspecifics is stronger than females’ among recently elevated species in the E. spectabile group. Finally, our finding that male preference for conspecific females is greater than female preference in artificial stream assays, where individuals have full physical access, further supports the conclusion that male preference for conspecific mates is stronger at early stages of divergence than females’.…”

Section: Discussionmentioning

confidence: 96%

“…), and several studies demonstrate that male darters have strong preferences for (i.e., bias their aggression toward) conspecific color patterns (Williams and Mendelson , Martin and Mendelson , Moran et al. ). If a novel ornament is more intimidating than the average signal, males with that ornament will win access to females, and selection will favor its spread.…”

Section: Discussionmentioning

confidence: 99%

Preference for conspecifics evolves earlier in males than females in a sexually dimorphic radiation of fishes

et al. 2017

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Speciation by sexual selection is generally modeled as the coevolution of female preferences and elaborate male ornaments leading to behavioral (sexual) reproductive isolation. One prediction of these models is that female preference for conspecific males should evolve earlier than male preference for conspecific females in sexually dimorphic species with male ornaments. We tested that prediction in darters, a diverse group of freshwater fishes with sexually dimorphic ornamentation. Focusing on the earliest stages of divergence, we tested preference for conspecific mates in males and females of seven closely related species pairs. Contrary to expectation, male preference for conspecific females was significantly greater than female preference for conspecific males. Males in four of the 14 species significantly preferred conspecific females; whereas, females in no species significantly preferred conspecific males. Relationships between the strength of preference for conspecifics and genetic distance revealed no difference in slope between males and females, but a significant difference in intercept, also suggesting that male preference evolves earlier than females'. Our results are consistent with other recent studies in darters and suggest that the coevolution of female preferences and male ornaments may not best explain the earliest stages of behavioral isolation in this lineage.

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Male and female contributions to behavioral isolation in darters as a function of genetic distance and color distance

Cited by 42 publications

References 102 publications

The evolution of male and female mating preferences inDrosophilaspeciation*

The evolution of male and female mating preferences inDrosophilaspeciation*

Male mate choice via cuticular hydrocarbon pheromones drives reproductive isolation betweenDrosophilaspecies

Preference for conspecifics evolves earlier in males than females in a sexually dimorphic radiation of fishes

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