Evaluated articles

eLife Assessment

This valuable study provides the first broad cross-species evolutionary analysis of the pir multigene family in malaria parasites, showing that the family evolved through rapid duplication and loss while retaining a small number of conserved orthologs with essential functions. The authors identify pirC1 as a key determinant of parasite growth across multiple Plasmodium species. However, the work remains incomplete because the mechanistic role of PIRCl and its precise subcellular localization are not directly resolved.

eLife Assessment

This paper presents a valuable methodology for genetic manipulation of Blastocystis. Although some imaging data are compelling, higher-quality figures together with more rigorous biochemical assays would strengthen support for the authors' claims. With the experimental evidence and graphics improved, the study would be of interest both to researchers investigating mitochondrial evolution under anaerobic conditions and to medical biologists studying human pathogens.

eLife Assessment

In this manuscript, the authors investigate programmed DNA elimination (PDE) across nematodes using a large-scale cytological approach. This work is potentially significant because it expands PDE beyond a few known nematodes to a much broader set of Rhabditidae species, providing an important resource for investigating PDE's evolutionary origins and functions. The strength of evidence, however, is incomplete; the technique used to evaluate PDE is insufficient to provide unambiguous support for the phenomenon, so additional methods, such as genomic sequencing from a few species spanning the range of elimination levels, would be required to confirm these findings. This research would be of interest to geneticists, evolutionary biologists, and those working on the regulation of genome integrity.

eLife Assessment

This is a fundamental study of individual variation and the contribution of learning to behavioural individuality. The experimental design of massively parallel behavioural phenotypes is outstanding and the conclusions are supported by a compelling and rigorous analysis across a large number of experiments in thousands of individuals across genotypes and conditions. The dataset further represents an advance in studying visual associative learning thanks to the ability to make longitudinal measurements of many behavioural decisions within the same animals. These results are a major contribution to the understanding of the sources of behavioural individuality.

eLife Assessment

This study presents valuable findings on phase-separated condensate formation by the MUT-16 protein, which plays a key role in small RNA biogenesis. A detailed analysis of the interactions governing condensate formation was carried out using coarse-grained and all-atom molecular dynamics simulations, complemented by in vitro phase separation experiments. While many of the results appear solid, a number of technical details are lacking, the computational part appears incomplete and would benefit from additional analyses and clarifications, and the novelty of the study should also be clarified, particularly in comparison with the authors' previous work on MUT-16. Overall, the work will be of interest to biophysicists and molecular biologists studying phase separation and biomolecular condensates.

eLife Assessment

Overall, this is a manuscript with solid evidence that delivers an important community resource for those performing experimental research in amyotrophic lateral sclerosis. The authors address the lack of validated tools for the detection and quantification of proteins associated with amyotrophic lateral sclerosis (ALS) through an extensive screening of 303 commercially available antibodies to 33 protein targets. The effort invested in generating the knockout lines for validation experiments is a clear strength of the study.

eLife Assessment

This important study provides a quantitative comparison of how zebrafish and medaka larvae process visual motion, revealing clear differences in how they integrate information across space and time. The evidence is convincing, combining a broad set of behavioral assays with response decomposition and mechanistic modeling that together support the central conclusions. Some aspects remain incomplete, particularly the link between the spatial and temporal findings, the extent to which the model accounts for the full range of behavioral results, and the framing of broader evolutionary or social interpretations. Overall, the work offers a careful and informative analysis that should be of broad interest to researchers studying visual processing, sensorimotor computation, and comparative neuroscience.

eLife Assessment

This study presents a large-scale characterization of single-neuron responses during reading and listening, enabling examination of both 'low-level' (orthographic/phonological) and 'higher-level' (syntactic) features, as well as links between single-neuron activity and multi-scale field potentials, making it a valuable resource for bridging micro- and macroscale accounts of language processing. The analyses identify modality-specific and putatively modality-independent responses across distributed brain regions, offering an intriguing framework for understanding how sensory-specific and abstract representations may relate. However, the evidence supporting the central claims is currently incomplete, due to limited population-level quantification, insufficient statistical characterization of how many neurons encode the relevant features, ambiguity in the interpretation of encoding model results, and a lack of rigorous tests of cross-modal generalization and alternative accounts, which together weaken the conclusions about amodal representations and hierarchical processing.

eLife assessment

This is a valuable survey of movements and locomotor patterns produced by circuits in the medial reticular formation (MRF) of the brainstem. The authors provide solid evidence that activation of GABAergic MRF neurons slowed down walking, activation of glutamatergic neurons induced a specific "shuffle" limb trajectory, and the activation of serotonergic neurons increased locomotor speed without affecting walking signature. This study adds to the growing body of knowledge about the effects of brainstem circuits on specific aspects of locomotor function.

eLife Assessment

This potentially valuable study investigates the anti-senescence effects of red light exposure, proposing that reduced SIRT4 levels enhance fatty acid metabolism and H3K9ac, thereby attenuating ageing-related phenotypes. The authors use multiple approaches, including cultured cells, animal models, and molecular analyses, to support their conclusions. However, the evidence remains incomplete, as additional controls and stronger mechanistic data are needed to fully support the proposed pathway, particularly how red light exposure reduces SIRT4 levels.

eLife Assessment

The study presents valuable findings regarding the impact of ARHGEF6 deletion, a RhoGTPase regulator linked to X-linked intellectual disability (XLID46), in the development of interneurons. The evidence supporting the observed cellular and developmental phenotypes collected in both mouse and human iPSC models is convincing, although further work would strengthen the mechanistic interpretation and clarify the specificity of the findings. This work offers new insights into ARHGEF6 function and the potential contribution of its dysfunction to neurodevelopmental disorders.

eLife Assessment

The manuscript by Rotsides et al. reports the design and validation of SMART-MR1, a miniaturized MR1 metabolite-display platform in which the α1/α2 ligand-binding domain is stabilized by a synthetic helical domain in place of the α3 domain and β2-microglobulin. Supported by biochemical, biophysical, and structural approaches, including ITC, NMR, and cryo-EM, the work provides solid evidence that SMART-MR1 retains native-like ligand binding and A-F7 TCR recognition while enabling experimental approaches for ligand screening that are difficult with conventional MR1 constructs. The study is valuable for the MR1 and MAIT-cell fields, particularly as a tool for ligand screening and mechanistic studies of MR1-restricted antigen presentation. There are several suggestions to further strengthen the study's impact, including clearer benchmarking against existing MR1 platforms, broader validation across ligands and TCRs, and functional evidence from MAIT-cell staining or activation assays.

eLife Assessment

This important study examines the effects of diet and exercise on brain structure and behaviour in the 3xTg mouse model of Alzheimer's disease. They show that combined access to a low-fat diet and exercise improves regional brain volume and behaviour in transgenic and wild-type control mice in a sex-specific manner, with analyses linking functional improvements to glucose homeostasis. Although some claims are well supported, the overall strength of the evidence is incomplete and hampered by a lack of clarity regarding the statistical analyses chosen. The work may be of interest to researchers studying neurodegenerative disease, particularly in preclinical contexts.

eLife Assessment

The study by Izquierdo and colleagues provides important insights into the field of genomic and transcriptomic prediction of traits across multiple environments. The rationale and analyses conducted to integrate the two types of ~omics datasets across two environments are solid. However, some clarification would be appreciated in the presentation of the results, and adding some statistical control to clarify how the predictors were selected, or assessing their importance using the SHAP framework, would further consolidate the findings.

eLife Assessment

This manuscript provides important insights into how U2AF2-dependent intron retention regulates the localization and function of long noncoding RNAs, with evidence supported by multiple complementary approaches. The work is notable for linking intron retention to nuclear speckle localization and cellular phenotypes, including proliferation and migration, although the mechanistic basis remains incompletely resolved. Overall, the study presents a compelling dataset with clear biological implications but would benefit from additional analyses to strengthen mechanistic interpretation and generality.

eLife Assessment

This potentially useful paper presents an intriguing hypothesis about the evolutionary origins of the SLC25 family of mitochondrial carrier proteins common to all eukaryotic life, proposing that all members originated from the ADP/ATP carrier (AAC) and that AAC itself may have emerged from bacterial homologs such as CysZ and YihY. While the phylogenetic analyses and structural searches are reasonable methodologies to explore ancient evolutionary events, the evidence provided here is deemed to provide incomplete support for the conclusion that the mitochondrial ATP transporter is related to CysZ and Yih.

eLife Assessment

This study addresses an important question in aging biology by combining metabolic, genetic, and functional approaches to examine how cytosolic acetyl-CoA metabolism influences late-life fitness in replicatively aging yeast. The evidence supporting the roles of AMPK activation, mitochondrial acetyl-CoA utilization, and fatty acid synthesis in shaping distinct aging-associated phenotypes is convincing overall, with the engineered A2A strain providing a particularly elegant demonstration of coordinated metabolic regulation. However, several conclusions would benefit from clarification or moderation, particularly regarding the relationship between late-life fitness and replicative lifespan, the interpretation of "senescence," the proposed existence of distinct aging subpopulations, and the extent to which the data support mechanistic claims about lipid starvation, acetyl-CoA excess, and chromatin-based aging pathways.

eLife Assessment

This work by Pyne and Pandey et al. addresses DNase X (DNase1L1) activity at the macrophage phagocytic cup, using an innovative imaging approach that couples visualization of cup formation to spatially resolve DNA degradation. The methodology is technically sound, and the central finding that DNA digestion begins prior to phagolysosomal maturation is considered well supported, though some mechanistic claims may benefit from further evidence and more cautious framing. Overall, the study is solid and provides a valuable framework for investigating early events at the phagocytic cup that may shape responses to pathogens and inflammatory disease.

eLife Assessment

This study presents a valuable framework that uses anticipatory eye movements to track how expectations are formed and revised during implicit probabilistic sequence learning. The evidence supporting a behavioural dissociation between errors arising from environmental noise and errors reflecting an inaccurate internal model is solid, but the oculomotor data describe behaviour rather than explain the underlying computational mechanisms, and the stronger mechanistic claims - that learning is more repetition-based than error-driven - remain incomplete without formal comparison against computational models of error-driven learning. The emerging reaction-time difference between conditions appears driven by slowing to low-probability stimuli rather than facilitation of high-probability ones, an asymmetry that requires decomposition and consideration of alternative explanations. The potential contamination of the anticipatory measure by starting gaze position should be addressed through control analyses, and the "process-pure" framing should be tempered, given that oculomotor behaviour is itself subject to motor learning.

eLife Assessment

This manuscript presents a valuable and timely contribution by incorporating desolvation barriers into coarse-grained models of biomolecular condensates. The findings are convincing, supported by a clear physical model and systematic simulations showing effects on phase behavior, packing, and dynamics. Some clarification and broader context would improve the manuscript, but it provides a foundation that will be of use for developing more realistic coarse-grained interaction schemes.