genetics research

A study reported by Live Science concludes that Native Hawaiians and the people of Easter Island (Rapa Nui) descend from the same group of 'ultravoyager' Polynesian ancestors who crossed vast stretches of the Pacific. Researchers say this seafaring population settled islands scattered across thousands of miles of ocean, reshaping understanding of how Polynesia was peopled.

Researchers report that an ancient viral sequence embedded in chimpanzee DNA switches off a gene that remains active in humans, offering another example of how retroviral remnants have shaped genetic differences between the species. The finding adds to understanding of human evolution and may inform studies of gene regulation and disease susceptibility.

Researchers have published a genomic analysis of early case samples from the 2025 Marburg virus outbreak in Ethiopia, examining how the virus fits into known Marburg lineages. The findings, reported in Nature, offer the first genetic detail on the outbreak strain and could inform vaccine and treatment decisions as health authorities work to contain the spread.

The National Zoo has announced a cryo-initiative, a programme focused on cryopreservation in biology and conservation. The effort is expected to involve freezing genetic material such as cells or embryos to help protect endangered species and support future breeding and research. Details of the programme's scope and partners have not yet been laid out publicly.

New research reported in Nature shows that rewired decoding, the process cells use to translate genetic instructions into proteins, fuels growth in KRAS-driven cancers and helps tumours resist targeted drugs. KRAS mutations are among the most common cancer drivers, so the findings may point to new treatment strategies that target translation itself to overcome resistance.

Speculation is building that the 2026 Nobel Prize in Physiology or Medicine could go to the pioneers of optogenetics, the technique that uses light to control genetically modified neurons. The method transformed neuroscience by letting researchers switch brain cells on and off with precision, and its founders have long been viewed as leading candidates for the award.

The Smithsonian's National Zoo is highlighting research into sea urchin reproduction and cryopreservation, the freezing and storage of reproductive cells to support breeding programs. Such techniques help scientists preserve genetic diversity in marine species and could bolster coral reef restoration efforts, since urchins play a key role in keeping reefs healthy by grazing algae.

Researchers report that colorectal cancer diagnosed in younger adults differs at the cellular and genetic level from cases diagnosed later in life, suggesting it may not simply be the same disease appearing earlier. The finding could help explain rising diagnoses among younger people and point toward tailored screening and treatment approaches.

Researchers report that the evolutionary expansion of the human neocortex was driven not only by novel genetic sequences but by the upregulation of genes humans share with other species, controlled by specific non-coding genetic switches that change neural stem cell morphology. The finding suggests that ancient genes, redeployed through regulatory changes, played a central role in making the human brain unusually large and folded.

Researchers are discussing how the cuckoo finch, an African brood parasite that lays its eggs in other birds' nests, manages to match the highly specific patterning of its hosts' eggs. The explanation lies in specialization on the female sex chromosome, but maintaining those genetic adaptations apparently comes at a cost of damage to other parts of the chromosome.

A new study described in Phys.org presents a method for identifying genes that may share roles across different species by analysing the 'shape' of gene expression. The approach could help scientists compare how genes function in organisms that are distantly related, shedding light on conserved biological processes and improving understanding of gene function beyond simple sequence comparisons.

Researchers have introduced fastGxE, a computational method designed to identify gene-environment interactions in large biobank datasets. Published in Nature, the tool is described as a powerful way to uncover how genetic variants respond differently to environmental factors at scale. The method could help clarify how genes and environment jointly shape disease risk across large populations.

Researchers have found that a spider species named in honour of US TV host Stephen Colbert carries a genome roughly 50% larger than the human genome. The finding, reported by Phys.org, highlights how genome size varies dramatically across animals and is not tied to complexity, drawing attention from both science and entertainment audiences.

New reporting highlights how genetic differences influence immune cell behaviour, which in turn affects an individual's risk of developing disease. The findings point to variation in immune function as a key factor explaining why some people are more susceptible to certain illnesses than others, with potential implications for personalised medicine and disease prevention research.

Researchers have introduced a new mathematical method that maps gene roles across different species, according to News-Medical. The approach allows scientists to compare how genes function in one organism against another, offering a clearer picture of shared biology and differences between species. It could help researchers studying genetics, evolution and disease transfer insights from model organisms to humans.

Researchers have published a complete genome assembly for Pin Gaew 56, a deepwater rice cultivar. The variety is adapted to flooded fields, where it elongates rapidly to keep pace with rising water. A reference genome gives breeders and scientists a tool for studying flood-tolerance traits and improving rice varieties grown in flood-prone regions. The report was carried by science news outlets covering plant genetics.

Scientists have sequenced the ribosomal DNA chromosome of slime mold from end to end, completing the first full mapping of this structure. The achievement gives researchers a complete picture of how the ribosomal DNA chromosome is organized in this organism, an important step in genetics and molecular biology research.

Biotechnology company Amgen is drawing attention to a broader view of human genetics, arguing that understanding health and disease means looking beyond the DNA people inherit from their parents. The piece highlights how factors beyond inherited sequences shape human biology and disease risk, prompting discussion of how genetics research should expand its focus.

Researchers are using whole-genome sequencing to investigate why some patients classified as low-risk still develop bleomycin-induced lung injury, a serious side effect of the chemotherapy drug. The work aims to uncover genetic variants that predispose individuals to pulmonary toxicity, which could help clinicians better identify vulnerable patients before treatment and guide safer use of bleomycin in cancer care.

New research suggests microexons, tiny segments of genetic material involved in RNA processing, may play a role in the roughly 85% of autism cases that currently have no identified genetic cause. The finding points to alternative splicing as a factor in neurodevelopment and could open new directions for autism research and diagnostics.

New research reports that among identical twins, the twin diagnosed with Parkinson's disease lived a shorter time than the twin without the condition. The finding highlights how strongly the disease affects long-term outcomes even in people with identical genetics. Commenters and health writers are weighing what this suggests about environmental or lifestyle differences in Parkinson's risk and progression between genetically matched individuals.

Scientists report an extremely rare case in which cancer cells apparently crossed from one identical twin to the other while both were in the womb. The finding highlights how cancer can transmit between genetically identical individuals sharing a prenatal environment, a phenomenon documented only in a handful of cases worldwide. Researchers are drawing attention to it for what it reveals about how the immune system recognises, or fails to recognise, cancer cells.

UK Biobank is set to reopen access for researchers following a data breach that had disrupted its operations. The biomedical database, which holds genetic and health records from around half a million UK participants, is a key resource for scientists worldwide. Details of the breach and any impact on participant data have not been fully disclosed.

Researchers report new genetic markers revealing that a key gene conferring resistance to wheat rust has never been used in commercial wheat breeding programs. The finding suggests breeders have overlooked a valuable source of protection against one of agriculture's most destructive diseases, potentially opening new avenues for developing rust-resistant wheat varieties.

Researchers have published a study in Nature describing the structural mechanism by which the R2 retrotransposon can be coupled with CRISPR–Cas9 to achieve programmable insertion of genetic material. By revealing how the retrotransposon integrates DNA at specific sites, the work points toward more precise gene-editing tools that could insert whole genes rather than just make small cuts.

UK Biobank is preparing to reopen its research platform following a major data breach. The biomedical database, which holds genetic and health data from around half a million UK participants, had restricted access while responding to the incident. The reopening signals that containment and security work is nearing completion, though details on the breach's scale and those affected have not been fully disclosed.

New research indicates that centromeres — the structures that anchor chromosomes during cell division — can change their position on chromosomes when specific proteins are removed. The finding, released with imaging from the study, offers insight into how genome organization is maintained and what happens when key molecular components are lost, with implications for research on cell division and chromosome stability.

A new scoring framework has been introduced that ranks viral k-mers — short genetic sequence fragments — according to their biological significance. The framework aims to help researchers prioritize which parts of viral genomes warrant closer study, potentially aiding work on virus detection, surveillance and vaccine development. Details beyond the announcement remain limited.