ArticleProceedings of the National Academy of Sciences of the United States of America2014
Introgression in hybrid ants is favored in females but selected against in males.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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21 citing papers in PubMed, 52 citations in OpenAlex.
- Introgression and Divergence in a Young Species Group.Molecular ecology · 2026Article
- Genomic incompatibilities are persistent barriers when speciation happens with gene flow in Formica ants.Molecular biology and evolution · 2026Article
- Fertility and Viability of Hybrid Offspring Imply the Absence of Major Postzygotic Isolation Between TwoInsects · 2026Article
- Adaptive Introgression as an Evolutionary Force: A Meta-Analysis of Knowledge Trends.Evolutionary applications · 2025Article
- The Role of Red Wood Ants (Insects · 2025Review
- Effect on genetic diversity of the absence of intraspecies preference in 2 sympatric Reticulitermes termite species (Isoptera: Rhinotermitidae).Journal of insect science (Online) · 2023Article
- Sex differences in deleterious genetic variants in a haplodiploid social insect.Molecular ecology · 2023Article
- Article
- Rapid and predictable genome evolution across three hybrid ant populations.PLoS biology · 2022Article
- Species recognition limits mating between hybridizing ant species.Evolution; international journal of organic evolution · 2022Article
- Assembly of a Hybrid Formica aquilonia × F. polyctena Ant Genome From a Haploid Male.The Journal of heredity · 2022Article
- Linked supergenes underlie split sex ratio and social organization in an ant.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Multiple mating in the context of interspecific hybridization between two Tetramorium ant species.Heredity · 2020Article
- Sex biased expression and co-expression networks in development, using the hymenopteran Nasonia vitripennis.PLoS genetics · 2020Article
- Article
- Sexually antagonistic selection promotes genetic divergence between males and females in an ant.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Hybridization increases population variation during adaptive radiation.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Building a new research framework for social evolution: intralocus caste antagonism.Biological reviews of the Cambridge Philosophical Society · 2018Review
- Phylogenomics of palearctic Formica species suggests a single origin of temporary parasitism and gives insights to the evolutionary pathway toward slave-making behaviour.BMC evolutionary biology · 2018Article
- Article
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2 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Hybridization is not a mere reproductive dead end but has been suggested to play a central role in speciation, for example, by introducing adaptive genetic variation. Our previous study uncovered a unique consequence of hybridization in Formica ants. In a population including two isolated but partially introgressed genetic groups, the females have an apparent hybrid background, whereas the males do not. This situation results in large-scale differences between male and female genomes that are stable throughout generations. Here, we compare genotypes from different developmental stages to investigate how sex-specific introgression and genetic differences between sexes are maintained. We show that strong selection rather than sex-dependent transmission maintains the genetic differences between sexes. All genotype combinations are produced and observed in the eggs of both sexes, but the alleles acquired through hybridization disappear from the haploid males during development from egg to adult as their frequencies drop toward zero. However, the same introgressed alleles increase in frequency and are favored when heterozygous in the females. Genotypes eliminated from males most likely represent incompatibilities arising from hybridization. Our results show an unusual situation of opposite selection, where introgression is favored in diploid females but selected against in haploid males. This finding suggests that introgressed genomic regions harbor both fitness-enhancing and -reducing elements. Our work highlights the complex consequences of hybridization and provides a rare opportunity to observe natural selection in real time in nature.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.