ArticleMolecular biology and evolution2026
From neuropeptides to toxins: illuminating the origins of venom complexity in cone snails.
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.
- Comparative analysis of venom genes in the chromosome-level genomes of two closely related cone snails.BMC genomics · 2026Article
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13 authors.
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Abstract
New genes and gene functions are key drivers of evolutionary innovation. Venomous animals, such as cone snails, provide striking examples of gene innovation, yet the mechanisms by which toxins arise remain poorly understood. Using the Conus textile genome, we uncover how neuropeptide genes were recruited into the venom and neofunctionalized as doppelgänger toxins. We identify over 20 independent recruitment events that evolved dynamically across the Conus lineage. Rather than arising from ohnologs of a whole-genome duplication event ∼200 mya, these toxins evolved through diverse mechanisms, including exon shuffling, alternative splicing, and ectopic recombination, often facilitated by lineage-specific transposable elements. Our findings reveal a dynamic interplay between genome architecture and molecular innovation, offering broad insight into the evolution of complex gene repertoires in venoms and beyond.
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