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 reveals that Mesorhabditis nematodes have evolved a degenerated neo-Y chromosome that accumulates male-beneficial genes and exhibits a strong fertilization drive, demonstrating that male-specific chromosomes can be maintained and stabilized even in autopseudogamous species where males are rare and genetically useless to offspring.
GLADE is a high-accuracy computational tool that reconstructs gene gains, losses, duplications, and ancestral genomes from OrthoFinder data, outperforming existing methods and successfully revealing convergent genomic signatures of dietary specialization in mammals.
By analyzing two phylogenomic datasets, this study concludes that the evolutionary relationships among the five major spiralian phyla remain unresolved due to an explosive, rapid radiation event at their origin, which has significant implications for interpreting Cambrian fossils and the evolution of key animal traits.
By employing single-cell RNA sequencing on the urochordate *Styela clava*, this study reveals that the chordate digestive tract originates from two distinct larval endodermal progenitor populations with conserved regulatory programs, suggesting a dual evolutionary origin for stomach and intestinal lineages.
By analyzing 50,000 generations of the E. coli Long-Term Evolution Experiment, this study demonstrates that the variance in reproductive success driving genetic drift evolves markedly and divergently between replicate populations, thereby altering the probability of beneficial mutations establishing and directly influencing adaptive trajectories.
This paper develops a Bayesian theory to overcome nonstandard statistical challenges in detecting gene flow between sister lineages, demonstrating through simulations and empirical data that this approach offers high power and low false-positive rates for inferring introgression.
By integrating phylogenomics with functional annotations across 508 species, this study reveals that major evolutionary transitions to multicellularity and terrestrial life are characterized by widespread convergent enrichment of semantically similar biological functions, often achieved through both independent gene family expansions and the recruitment of ancient orthologous genes.
This study leverages long-read sequencing to provide the first comprehensive chordate-wide analysis of CR1-group retrotransposons, revealing ancient origins, unprecedented diversity, novel elements, and frequent horizontal transfer events that reshape our understanding of their evolutionary history.
This study demonstrates that gene-culture coevolution in mate choice enables the emergence of persistent cultural traditions through simple social learning strategies, challenging the long-held assumption that sophisticated conformist transmission is strictly necessary for tradition formation.
The paper introduces TRAMA, a computational framework that leverages ancestral recombination graphs to accurately estimate mutation rates and select between Stepwise and Two-Phase mutation models for tandem repeat variants.