ArticleScientific reports2020
The social supergene dates back to the speciation time of two Solenopsis fire ant species.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed.
- Developmental bias of body size and caste by the fire ant social supergene.Proceedings. Biological sciences · 2026Article
- Plant derived biopesticides for controlling imported fire ants (Frontiers in plant science · 2026Review
- Seasonal Dynamics of Red Imported Fire Ant (Animals : an open access journal from MDPI · 2025Article
- The origin and maintenance of supergenes contributing to ecological adaptation in Atlantic herring.Nature communications · 2024Article
- Solenopsis richteri (Hymenoptera: Formicidae) alates infected with deformed wing virus display wing deformity with altered mobility.Die Naturwissenschaften · 2024Article
- Evolutionary genomics of socially polymorphic populations of Pogonomyrmex californicus.BMC biology · 2024Article
- Radiation and hybridization underpin the spread of the fire ant social supergene.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Iterative evolution of supergene-based social polymorphism in ants.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Review
- Recurring adaptive introgression of a supergene variant that determines social organization.Nature communications · 2022Article
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2 authors.
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Abstract
Colony social organization of multiple Solenopsis fire ant species is determined by a supergene with two haplotypes SB and Sb, which are similar to X/Y sex chromosomes. The ancestral monogyne (single-queen) social form has been associated with homozygous SB/SB queens, while queens in colonies with the derived polygyne (multi-queen) social structure are heterozygous SB/Sb. By comparing 14 Solenopsis invicta genomes and the outgroup S. fugax, we dated the formation of the supergene to 1.1 (0.7-1.6) million years ago, much older than previous estimates, and close to the estimated time of speciation of the two socially polymorphic species S. invicta and S. richteri. We also used 12 S. invicta and S. richteri genomes to compare the evolutionary distances between these species and the distances between the social haplotypes, and found them to be similar. A phylogenetic analysis suggested that the monophyletic Sb clade is more closely related to S. richteri SB haplotypes than to S. invicta SB haplotypes. We conclude that the formation of the supergene occurred concomitantly with the process of speciation of the Solenopsis socially-polymorphic clade, and hypothesize that the Sb variant first arouse in one incipiently-speciating population and then introgressed into the other populations or species.
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