ArticleMolecular biology and evolution2026
Sequential origin of an alternative colony founding strategy driven by two supergenes in Temnothorax ants.
Article in Molecular biology and evolution, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed.
- Developmental bias of body size and caste by the fire ant social supergene.Proceedings. Biological sciences · 2026Article
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6 authors.
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Abstract
Recent discoveries reveal that many complex intraspecific polymorphisms are shaped by a single supergene that maintains coadapted genetic variants through suppressed recombination. Here, we show that in the ant Temnothorax rugatulus, an extreme reproductive polymorphism is instead governed by two independent genomic rearrangements that arose sequentially on different chromosomes. Colonies of this species contain either a single large dispersing queen or multiple queens, including extremely miniaturized microgynes that cannot establish new colonies on their own and reproduce only by joining established multiple-queen colonies. Using chromosome-scale assemblies and population genomic data, we identify two genomic rearrangements, 9.3 and 7.0 Mb in size, that jointly determine these strategies. Divergence dating shows that the supergene underlying colony social structure arose first, creating the conditions for the subsequent emergence of a miniaturization supergene. These findings demonstrate that complex adaptive strategies can be assembled stepwise through the sequential origin of multiple supergenes.
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