Genetic Current · Students

Genetics news for students

Accessible explanations of new research and developments in genetics, written so a learner can pick up the thread.

263 stories · Last updated

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Preprint · not peer-reviewed Researchers · Educators · Students

Causal variant in CD40 autoimmune locus identified, revealing context-specific effects in B cells

A preprint using CITE-seq data from over one million peripheral blood mononuclear cells pinpoints the causal allele at the CD40 locus and maps downstream trans-acting effects specific to activated B cells, pointing toward targeted rather than broadly immunosuppressive therapies.

2026-08-05 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Preprint maps 25 years of human genetics research in Wikipedia and AI-generated text

An analysis of more than three million Wikipedia revisions across nearly 7,000 pages finds genetics terminology is disproportionately concentrated in articles about nationality and ethnicity, raising questions about how research on human genetic diversity is synthesised for public audiences.

2026-08-05 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Histone methyltransferase MET-2 regulates autosome and X-chromosome structure differently during C. elegans meiosis

A bioRxiv preprint shows that loss of the H3K9me2-writing enzyme MET-2 enlarges autosomes during spermatogenesis in C. elegans but leaves chromosome size during oogenesis and X univalents unaffected, revealing sex-specific roles in meiotic chromosome compaction.

2026-07-30 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

C. elegans study identifies orexin-receptor homologue NPR-14 as an arousal promoter

A bioRxiv preprint from Cold Spring Harbor Laboratory characterises NPR-14, a G-protein-coupled receptor in Caenorhabditis elegans, as a promoter of arousal that suppresses sleep-like quiescence — offering a genetically tractable model for studying conserved sleep-regulatory pathways.

2026-07-26 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Genetic Counsellors · Educators

Preprint reports mutation-agnostic gene insertion strategy for rhodopsin-linked retinitis pigmentosa

A bioRxiv preprint describes a zinc finger nuclease approach that inserts a functional rhodopsin gene copy regardless of which of nearly 100 pathogenic RHO variants a patient carries, aiming to circumvent the mutational heterogeneity that limits variant-specific therapies.

2026-07-18 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Preprint links truncating ASXL1 variants to Warburg-like metabolic rewiring via mitochondrial pyruvate carrier repression

Patient-derived fibroblast data in a bioRxiv preprint suggest that ASXL1 truncating variants — found in both Bohring-Opitz syndrome and myeloid leukaemia — drive a shift towards aerobic glycolysis by suppressing mitochondrial pyruvate import.

2026-07-18 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Genetic Counsellors · Educators

Long-read sequencing uncovers two independent pathogenic variants co-segregating in a consanguineous Pakistani family

A preprint reports that dizygotic twins in a consanguineous family carry both a novel EPS8 variant linked to hearing loss and an HPDL variant associated with neurodevelopmental disorder, illustrating how multilocus pathogenic variation can produce complex overlapping phenotypes.

2026-07-15 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Preprint: leech infection leaves DNA methylation signatures in loggerhead sea turtles, potentially across generations

A bioRxiv preprint using whole-genome bisulfite sequencing finds that infection with the parasitic leech Ozobranchus margoi is associated with DNA methylation variation in loggerhead sea turtles, with evidence the signal may persist across generations.

2026-07-01 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Preprint links disrupted glycosylation and deglycosylation to impaired sperm function in zebrafish

Using Danio rerio as a model organism, researchers describe how enzyme deficiencies affecting oligosaccharide assembly and breakdown impair sperm condition through protein aggregation and oxidative stress, with potential relevance to understanding human male infertility in congenital disorders of glycosylation.

2026-07-03 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Wolbachia-induced cytoplasmic incompatibility produces heritable chromatin modifications in host embryos, preprint reports

A bioRxiv preprint provides evidence that the embryo-lethal effects of Wolbachia-induced cytoplasmic incompatibility are mediated, at least in part, by heritable epigenetic chromatin modifications rather than purely mechanical replication failure.

2026-06-17 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Preprint maps antiviral RNAi responses across Varroa mite life stages and finds evidence of vertical virus transmission

A bioRxiv preprint characterises how the honey bee parasite Varroa destructor deploys RNA interference against viruses across its life cycle, revealing that established viral infections produce an unusual small RNA signature and that viruses are transmitted vertically through mite generations.

2026-06-13 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Synthetic fusion promoters improve balanced transgene expression in rods and cones in retinal gene therapy preprint

A bioRxiv preprint describes two engineered fusion promoters — Pikali and Nocchu — that drive broader and more balanced transgene expression across both rod and cone photoreceptors than existing options, a longstanding challenge in retinal gene therapy research.

2026-06-10 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Natural genetic variation in Drosophila spans full range of predicted photoreceptor rhodopsin expression phenotypes

A bioRxiv preprint using wild and wild-derived Drosophila lines finds that standing genetic variation is sufficient to produce virtually every predicted qualitative change in Rh5/Rh6 expression in R8 photoreceptors, illustrating the breadth of phenotypic potential in natural populations.

2026-06-10 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Preprint identifies achiasmatic meiosis as mechanism enabling clonal genome propagation in hybrid crucian carp females

Researchers studying the hexaploid crucian carp Carassius gibelio report that asexual females use meiosis without chromosomal crossover — achiasmatic meiosis — to produce unreduced eggs carrying both the clonal genome and supernumerary B chromosomes.

2026-06-04 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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PLOS Genetics study demonstrates intramolecular epistasis drives clustering of adaptive substitutions in Drosophila Trio protein

Researchers at Columbia University have used population genetic and functional approaches to show that spatially clustered amino acid substitutions in the Drosophila Trio protein arise through intramolecular epistasis, providing rare direct evidence for a theoretically predicted but empirically understudied evolutionary constraint.

2026-06-04 · 1 source · PLOS Genetics
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Preprint · not peer-reviewed Researchers · Educators · Students

Preprint: gut gap-junction gene inx-20 extends reproductive lifespan in C. elegans without major effect on overall longevity

A bioRxiv preprint reports that loss of the innexin gene inx-20 in the alimentary tract of the roundworm C. elegans substantially prolongs reproductive span independently of somatic ageing, suggesting gut-to-germline signalling shapes the timing of reproductive senescence.

2026-06-08 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Students

Single-cell multi-omic atlas of human dendritic cell differentiation links inherited disease risk to specific immune cell subsets

A bioRxiv preprint presents a chromatin accessibility and transcriptomic atlas of human dendritic cell development from haematopoietic stem cells, integrating GWAS data from immune-mediated diseases to pinpoint which DC subsets mediate inherited genetic risk.

2026-05-31 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Computational model proposes ploidy buffers developmental gene expression noise to explain hybrid vigour

A bioRxiv preprint uses abstract multicellular development modelling to argue that increased ploidy — in both diploid hybrids and polyploids — reduces the impact of gene expression noise on cell fate determination, offering a mechanistic basis for heterosis.

2026-05-31 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

High-throughput single-cell eQTL mapping in yeast reveals how genetic variants shape rapid transcriptional responses to stress

A bioRxiv preprint uses a scalable 'one-pot' single-cell RNA-seq approach to map expression quantitative trait loci in yeast during acute salt stress and nutrient repletion, extending eQTL analysis from steady-state transcript levels into dynamic physiological transitions.

2026-05-31 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Preprint: undergraduate CURE screen identifies Bacillus isolates that suppress Ras/MAPK signalling in C. elegans

The WormFood CURE, a course-based undergraduate research programme, used a C. elegans multivulva phenotype assay to screen environmental bacteria for bioactive metabolites and found two Bacillus strains capable of suppressing ectopic Ras pathway activation.

2026-06-08 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Genetic Counsellors · Educators

Preprint reports novel MGME1 variant causing mitochondrial DNA depletion syndrome in South Indian families

A bioRxiv preprint describes a homozygous missense variant in MGME1 — a nuclear-encoded gene essential for mitochondrial DNA maintenance — identified in five affected individuals from unrelated South Indian families presenting with multi-systemic mitochondrial disease.

2026-05-21 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Preprint proposes unified framework for Hardy-Weinberg equilibrium testing on the X chromosome

A bioRxiv preprint develops a general statistical approach to Hardy-Weinberg equilibrium inference at X-linked loci, addressing longstanding ambiguities that arise from sex-specific genotype structures and differing assumptions about allele frequency differences between sexes.

2026-05-21 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)
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Preprint · not peer-reviewed Researchers · Educators · Students

Preprint redefines role of RNA polymerase ω subunit in transcription-replication conflicts

A bioRxiv preprint from Cold Spring Harbor Laboratory suggests the ω subunit of bacterial RNA polymerase regulates transcriptional processivity and helps resolve collisions with the replication machinery, challenging its traditional characterisation as a mere assembly chaperone.

2026-05-18 · 1 source · bioRxiv (Cold Spring Harbor Laboratory)

About Genetic Current

Educational summaries of public genetics news

Genetic Current is the news section of Evagene, an academic, research, and educational pedigree-modelling platform. Stories are AI-drafted summaries of items from trusted public sources, written for researchers, clinicians, educators, students, genealogists, and patients with an interest in genetics. Summaries are for educational and research purposes only and are not medical advice.

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