ArticleEvolution; international journal of organic evolution2019
Geographic contrasts between pre- and postzygotic barriers are consistent with reinforcement in Heliconius butterflies.
Article in Evolution; international journal of organic evolution, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 29 citations in OpenAlex.
- The Evolution of Reproductive Isolation Beyond a Strong First Barrier in Speciation Between Micro-Allopatric Host Races of a Phytophagous Ladybird Beetle,Ecology and evolution · 2026Article
- Mating strategy does not affect the diversification of abdominal chemicals in Heliconiini butterflies.Chemoecology · 2025Article
- Complexity of Chemical Emissions Increases Concurrently with Sexual Maturity in Heliconius Butterflies.Journal of chemical ecology · 2024Article
- Surprise hybrid origins of a butterfly species.Nature · 2024Article
- Article
- How Important Is Sexual Isolation to Speciation?Cold Spring Harbor perspectives in biology · 2024Review
- Pervasive mimicry in flight behavior among aposematic butterflies.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Major patterns in the introgression history ofeLife · 2023Article
- On the impermanence of species: The collapse of genetic incompatibilities in hybridizing populations.Evolution; international journal of organic evolution · 2022Article
- Demographic modelling helps track the rapid and recent divergence of a conifer species pair from Central Mexico.Molecular ecology · 2022Article
- Exploitation of an ancestral pheromone biosynthetic pathway contributes to diversification inProceedings. Biological sciences · 2022Article
- Synteny-Based Genome Assembly for 16 Species of Heliconius Butterflies, and an Assessment of Structural Variation across the Genus.Genome biology and evolution · 2021Article
- The limits to parapatric speciation 3: evolution of strong reproductive isolation in presence of gene flow despite limited ecological differentiation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Article
- Alternative views of biological species: reproductively isolated units or genotypic clusters?National science review · 2020Article
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Authors and funding
12 authors at 6 institutions in 4 countries.
Funding
Abstract
Identifying the traits causing reproductive isolation and the order in which they evolve is fundamental to understanding speciation. Here, we quantify prezygotic and intrinsic postzygotic isolation among allopatric, parapatric, and sympatric populations of the butterflies Heliconius elevatus and Heliconius pardalinus. Sympatric populations from the Amazon (H. elevatus and H. p. butleri) exhibit strong prezygotic isolation and rarely mate in captivity; however, hybrids are fertile. Allopatric populations from the Amazon (H. p. butleri) and Andes (H. p. sergestus) mate freely when brought together in captivity, but the female F1 hybrids are sterile. Parapatric populations (H. elevatus and H. p. sergestus) exhibit both assortative mating and sterility of female F1s. Assortative mating in sympatric populations is consistent with reinforcement in the face of gene flow, where the driving force, selection against hybrids, is due to disruption of mimicry and other ecological traits rather than hybrid sterility. In contrast, the lack of assortative mating and hybrid sterility observed in allopatric populations suggests that geographic isolation enables the evolution of intrinsic postzygotic reproductive isolation. Our results show how the types of reproductive barriers that evolve between species may depend on geography.
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