295 papers
Evolutionary biology explores the dynamic history of life on Earth, tracing how species change, adapt, and diversify over time. This field investigates the mechanisms driving everything from the development of antibiotic resistance in bacteria to the complex social behaviors of primates, revealing the deep connections that bind all living organisms together.
On Gist.Science, we ensure these groundbreaking discoveries remain accessible by processing every new preprint uploaded to bioRxiv in this category. Our team generates both plain-language overviews and detailed technical summaries for each paper, bridging the gap between raw research and public understanding without requiring a specialized background.
Below are the latest studies in evolutionary biology, offering fresh insights into the ongoing story of life.
This study demonstrates that in two convergent Australasian gecko radiations, abiotic factors primarily drive phenotypic divergence in allopatry, while competitive exclusion subsequently shapes species overlap in sympatry.
This study reveals that natural variation in galactose and melibiose metabolism across *Schizosaccharomyces pombe* isolates is shaped by a dynamic interplay of opposing evolutionary forces, including gene loss, repression, amplification, and horizontal gene transfer, demonstrating that a single eukaryotic species can simultaneously pursue both reductive and expansive evolutionary trajectories to achieve metabolic diversity.
SplitAligner is a novel framework that reconciles gene and species trees by projecting species-tree branches onto gene-specific taxon sets to systematically distinguish between structural missingness and topology-induced discordance, thereby enabling standardized branch-wise evolutionary analyses across thousands of loci.
This study establishes a comprehensive expression-based developmental map of early neurogenesis in the chaetognath *Spadella cephaloptera*, revealing that despite its unique nervous system architecture, it exhibits conserved bilaterian molecular patterning features and spatiotemporal deployment of key neurogenic and axial genes.
This paper introduces a comprehensive, publicly accessible genomic database containing over 1,700 sequenced genomes of outcrossing *Arabidopsis lyrata* and *A. arenosa* that integrates population structure, geographic mapping, and genome-wide association study capabilities to facilitate research on local adaptation and comparative genetics.
The paper introduces **scoup**, an R-based Bioconductor tool that uniquely bridges phylogenetics and population genetics by simulating codon sequences under Darwinian selection through a novel fusion of the Halpern-Bruno mutation-selection model and the Ornstein-Uhlenbeck process.
This genomic investigation reveals that *Clonostachys rosea* comprises both ancestral heterothallic and derived homothallic lineages, with the latter originating in South America and exhibiting distinct patterns of nucleotide diversity and linkage disequilibrium that reflect their self-fertile reproductive strategy.
Using a highly replicated *Drosophila* experimental evolution system, this study demonstrates that selection for postponed reproduction drives convergent, polygenic adaptations that extend lifespan and enhance immune defense through allele frequency shifts in genes primarily associated with neural development and morphogenesis rather than canonical aging pathways.
Through an integrative analysis of genomic, allelic, and morphological data, this study resolves the complex systematics of the rapidly radiating Asiatic white-eye group, revealing deep phylogenetic splits and distinct morphological evolution while concluding that many observed population differences, such as the paraphyletic *Z. montanus*, likely do not yet represent fully independent species lineages.
Phylogenomic analyses using targeted capture data reveal that the New Zealand alpine conifer *Podocarpus nivalis* originated as a hybrid between the New Zealand species *P. laetus* and the Australian *P. lawrencei*, highlighting the significance of reticulate evolution in Southern Hemisphere conifers.