PLOS Biology

5 min read Original article ↗

Genetic parallelism in butterfly mimicry

April 30, 2026

Genetic parallelism in butterfly mimicry

The repeated evolution of similar phenotypes, or convergent evolution, is widespread in nature, but there are few studies investigating the genetic mechanisms across wide evolutionary timescales. Yacine Ben Chehida, Eva van der Heijden, Edward Page, Kanchon Dasmahapatra, Joana Meier and colleagues explore convergent wing pattern evolution across highly divergent Lepidopteran lineages and report parallel genetic reuse, indicating strong constraints and high predictability in evolutionary outcomes.

Image credit: Alex P Arias-Cruz

PLOS Biologue

Community blog for PLOS Biology, PLOS Genetics and PLOS Computational Biology.

PLOS BIOLOGUE

04/30/2026

Research Article

Learning about novel foods

Although adoption of novel food is vital to colonisation of novel environments, social learning about novel food types is not well studied. This study of urban sulphur crested cockatoos, by Julia Penndorf, Lucy Aplin and co-workers, shows that they rapidly adopted a novel food through social learning, with juveniles (but not adults) showing conformist preferences.

Image credit: Julia Penndorf

Learning about novel foods

Recently Published Articles

04/28/2026

Research Article

Klebsiella phage diversity

Bacteriophages infecting Klebsiella pneumoniae show capsule specificity that strongly shapes host range, yet its basis in temperate phages is unclear. Aleksandra Otwinowska, Janusz Koszucki, Zuzanna Drulis-Kawa, Rafal Mostowy and co-authors reveal diverse prophage-encoded receptor-binding enzymes, including esterases, that drive capsule tropism and are validated across 119 Klebsiella capsule types.

Image credit: pbio.3003716

Klebsiella phage diversity

04/28/2026

Short Reports

Arboviruses are quiet guests in mosquito hosts

Arboviruses are mosquito-borne viruses that induce acute lytic infection in humans, but how do they establish persistent infections in their mosquito vectors without compromising host cell viability? Marc Talló-Parra, Mireia Puig-Torrents, Juana Díez and colleagues show that persistent arbovirus infection is maintained by limiting viral protein synthesis through repression of viral RNA translation.

Image credit: pbio.3003702

Arboviruses are quiet guests in mosquito hosts

04/27/2026

Research Article

Polyphosphate modulates RNA-protein condensates

RNA chaperone Hfq is known to assemble into biomolecular condensates in response to stress in E.coli, but what leads to Hfq’s phase separation? Jian Guan, Lydia Freddolino, Ursula Jakob and co-workers show that polyphosphate scaffolds the formation of condensates with Hfq, which then sequester and selectively stabilize polyadenylated transcripts.

Polyphosphate modulates RNA-protein condensates

Image credit: pbio.3003775

04/27/2026

Short Reports

Explaining human handedness

Why do humans exhibit a striking and near-universal population-level right-hand preference? This study of 41 anthropoid species, by Thomas Püschel, Rachel Hurwitz and Chris Venditti, reveals Homo sapiens as an evolutionary outlier and identifies bipedalism and brain expansion as likely key drivers of human lateralization.

Explaining human handedness

Image credit: pbio.3003771

04/27/2026

Research Article

Evolution of termite terpenoid biosynthesis

Termites produce a diverse array of more than 200 terpenoids, but how are these biosynthesized? Natan Horáček, Robert Hanus, Jitka Štáfková and co-authors reveal that a termite-specific expansion of the geranylgeranyl pyrophosphate synthase gene family has generated terpene synthases capable of making the queen pheromone (3R,6E)-nerolidol and precursors of polycyclic defensive diterpenes.

Evolution of termite terpenoid biosynthesis

Image credit: pbio.3003648

04/22/2026

Community Page

CiliaKB: a knowledge base for cilia-associated genes

Cilia dysfunction is implicated in a range of disorders. This Community Page presents CiliaKB, a knowledge base that serves as a one-stop platform for researchers to rapidly access mechanistic data and mine for translational clues about cilia.

CiliaKB: a knowledge base for cilia-associated genes

Image credit: Donghui Zhang

04/21/2026

Essay

The selfish ribosome

In this Essay, the evolution of life is construed as a ribosomal takeover, whereby the ribosome evolved to consume most of the cell’s resources, while other cellular componentry ensured the propagation of the ribosome, the ultimate biological selfish element.

The selfish ribosome

Image credit: pbio.3003780

04/20/2026

Perspective

Recognizing equal contribution authorship

Equal contribution designations are on the rise, yet this information is routinely lost, creating inequity in recognition and crediting. This Perspective calls for improvements in transferring this information to indexing sites such as PubMed.

Recognizing equal contribution authorship

Image credit: Roli Roberts

04/16/2026

Consensus View

Core reproducibility items in research

Evidence-based solutions are needed to help improve reproducibility in research. This Consensus View presents a consensus-based list of core reproducibility items for research.

Core reproducibility items in research

Image credit: pbio.3003726