Evolution; international journal of organic evolution

01 19 October 2026

DOI 10.1093/evolut/qpag185

Emergence of mutants in bacterial populations: a simulation-based approach for parameter inference in extended Luria & Delbrück scenarios

Open DOI

Aurélien Tauzin, Antoine Frenoy

Bacterial mutation rates are traditionally inferred from phenotypic data using fluctuation assays. Mutation rate computation from these assays relies on a mathematical model describing the emergence of mutants during population growth. H...

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02 19 October 2026

DOI 10.1093/evolut/qpag191

Ancestral introgression and dual mitochondrial capture shaped mito-nuclear discordance in sky-island skinks (Scincidae: Sphenomorphus )

Open DOI

Tzong-Han Lin, Yu-Te Wang, Pei-Chun Liao et al.

Mito-nuclear discordance can obscure the interpretation of evolutionary history, particularly in fragmented systems where multiple processes can generate similar phylogenetic patterns. We investigated pronounced discordance between mitoc...

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03 16 October 2026

DOI 10.1093/evolut/qpag190

Evolution towards monomorphy leads to a loss of morph plasticity in wing polymorphic crickets

Open DOI

Lourenço M A Martins, Lily J Donzeiser, O M Ruffins et al.

Threshold traits are widespread forms of dimorphism in which an underlying continuous liability produces discrete phenotypes once a threshold is crossed. The threshold trait model predicts that phenotypic variation will be observed only ...

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04 16 October 2026

DOI 10.1093/evolut/qpag189

Full-likelihood genomic inference resolves intergroup hybrid speciation in the only known parthenogenetic pleurodont lizard ( Liolaemus parthenos )

Open DOI

Kevin I Sánchez, Edward A Myers, Luciano J Avila et al.

Hybridization is increasingly recognized as an important evolutionary process that can reshape genomes and generate novel lineages. One striking outcome is the origin of obligately parthenogenetic populations, often through interspecific...

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05 16 October 2026

DOI 10.1093/evolut/qpag188

Digest: Light environments poorly explain hummingbird plumage colour

Open DOI

Catherine Nistha

Light environments dictate how effective the colours that species adopt are for signalling or certain physiological functions, such as UV protection. Beltrán et al. (2026) show that light environments may, however, play only a marginal r...

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06 14 October 2026

DOI 10.1093/evolut/qpag186

Increasing absolute prey density within a mimicry complex protects aposematic models and their Batesian mimics

Open DOI

Abigail E Robinson, Alejandra Camargo-Cely, Julia B Meyersiek et al.

Batesian mimicry is a defensive adaptation where predators learn to avoid aposematic prey and generalize their warning signals to phenotypically similar mimics. The phenotypic accuracy needed for mimics to benefit from this adaptation de...

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07 13 October 2026

DOI 10.1093/evolut/qpag187

Morphological Constraint Shapes Diversification in a Hyperdiverse Lineage of Neotropical Tetras: A Geometric Morphometric Analysis of Three Subfamilies of Acestrorhamphidae (Teleostei: Characiformes)

Open DOI

Volnys K Bernal, Bruno A S Coelho, Lais Reia et al.

The order Characiformes (Teleostei: Ostariophysi) represents one of the most diverse groups within the Neotropical freshwater ichthyofauna. Recently, a phylogeny with unprecedented resolution redefined its internal relationships and deli...

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08 12 October 2026

DOI 10.1093/evolut/qpag170

Correction to: The futility of attempts to rehabilitate Fisher’s Fundamental Theorem of Natural Selection

Open DOI

09 8 October 2026

DOI 10.1093/evolut/qpag184

Ecological Filtering Shapes Morphological Diversity Across Flow Regimes in Neotropical Characiforms

Open DOI

Michael D Burns, Shih-Na Liu, Peter C Wainwright

Colonizing novel habitats can increase ecological opportunity, promoting rapid phenotypic evolution as species adapt to new niches. However, colonization of a novel habitat can limit phenotypic diversity without changing the rate of evol...

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10 6 October 2026

DOI 10.1093/evolut/qpag181

A hundred million years in a narrow tube: The role of stabilizing selection and ecological divergence in a clade of carnivorous dinosaurs

Open DOI

Enzo E Seculi Pereyra, Martín D Ezcurra, Carolina Paschetta et al.

The vertebrate skull has undergone extensive morphological diversification and ecological specialization throughout its evolutionary history. However, the evolutionary processes shaping skull morphology in deeply-diverging lineages of no...

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