Summary
Genetics is the discipline concerned with the inheritance and variation of biological traits through the information encoded in deoxyribonucleic acid (DNA). At its core lies the gene, a discrete segment of DNA that directs the synthesis of RNA and proteins, thereby determining cellular function and organismal phenotype. Advances in sequencing, genome editing and high-throughput analysis have transformed our understanding of how genetic variation—ranging from single-base changes to large structural rearrangements—shapes development, physiology, health and evolution. Classical genetics elucidates rules of inheritance through controlled crosses, whereas molecular genetics deciphers the mechanisms by which DNA is replicated, transcribed and translated. Population and quantitative genetics extend these principles to natural and breeding populations, mapping the genomic loci underlying complex traits and tracing the dynamics of allele frequencies under selection. Together, these approaches underpin applications in precision medicine, crop and livestock improvement, conservation genomics and biotechnology.
Research from Nature Portfolio
A study of naturally hybridizing swordtail fishes has uncovered a lethal incompatibility between nuclear- and mitochondrial-encoded subunits of respiratory complex I. Hybrids carrying mismatched combinations fail to assemble functional enzyme complexes and die in early development, whereas heterozygotes survive with proteome imbalance, revealing how mitonuclear epistasis contributes to post-zygotic reproductive barriers.
Comparative analysis of 25 distantly related flowering plants has identified more than a hundred gene families whose allele frequencies repeatedly correlate with climatic variables over 300 million years of divergence. These climate-associated orthogroups tend to be highly pleiotropic and central in co-expression networks, suggesting that broadly expressed regulators drive recurrent adaptation to temperature and precipitation across angiosperms.
Network-driven surveillance of millions of SARS-CoV-2 genomes has demonstrated that emerging viral haplotypes manifest as dense communities in coordinated substitution networks long before they reach high prevalence. Community detection algorithms can therefore forecast nascent variants of concern on a genome-wide scale, offering an early-warning tool for pandemic preparedness.
Topic trend for the past 5 years
The graph below shows the article count in Nature Index journals for genetics.
* The ‘Current Index’ represents data for a 12-month rolling window, the current window is 1 May 2025 - 30 April 2026.
Technical terms
Mitonuclear incompatibility: A deleterious interaction between nuclear- and mitochondrial-encoded gene variants that disrupts mitochondrial function.
Orthogroup: A set of genes in different species descended from a single ancestral gene, often sharing conserved functions.
Haplotype: A combination of alleles at adjacent loci on a chromosome that are inherited together.
Quantitative trait locus (QTL): A genomic interval that contributes to variation in a continuously distributed trait.
Community detection: A network-analysis technique that identifies clusters of strongly interconnected nodes, here applied to co-occurring mutations.
Single-nucleotide polymorphism (SNP): A single-base variation in DNA sequence among individuals, used as a genetic marker in mapping studies.
Linkage map: An ordered list of genetic markers along a chromosome, established by measuring recombination frequencies.
Notable articles in genetics
- A DNA methylation atlas of normal human cell types. Nature (2023).
- RAB32 Ser71Arg in autosomal dominant Parkinson's disease: linkage, association, and functional analyses. The Lancet Neurology (2024).
- Structure of the R2 non-LTR retrotransposon initiating target-primed reverse transcription. Science (2023).
- Recognition of RNA N6-methyladenosine by IGF2BP proteins enhances mRNA stability and translation. Nature Cell Biology (2018).
- FTO Plays an Oncogenic Role in Acute Myeloid Leukemia as a N 6-Methyladenosine RNA Demethylase. Cancer Cell (2016).
About these summaries
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Research
Position of Genetics in Nature Index by Count
Leading institutions
| Institution | Count | Share |
|---|---|---|
| Harvard University | 90 | 30.9 |
| Chinese Academy of Sciences (CAS) | 81 | 19.35 |
| National Institutes of Health (NIH) | 47 | 18.45 |
| Zhejiang University (ZJU) | 37 | 16.28 |
| French National Centre for Scientific Research (CNRS) | 97 | 14.97 |
| Max Planck Society | 46 | 13.35 |
| University of Michigan (U-M) | 28 | 13.13 |
| Cornell University | 39 | 12.5 |
| Stanford University | 37 | 12.12 |
| The University of Chicago (UChicago) | 23 | 11.82 |
Collaboration
Top 5 leading collaborators in Genetics
Collaborating institutions
Note: Hover over the bars to view details about each institution's Share.
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