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| Molecular evolution | |
|---|---|
| Name | Molecular evolution |
| Caption | Double helix model of nucleic acids |
| Field | Evolutionary biology, Genetics, Biochemistry |
| Notable figures | Motoo Kimura, Sewall Wright, Theodosius Dobzhansky, Ernst Mayr, Francis Crick, James Watson, Rosalind Franklin, Carl Woese |
| Institutions | University of Tokyo, Cold Spring Harbor Laboratory, Harvard University, Massachusetts Institute of Technology, University of Cambridge |
Molecular evolution is the study of evolutionary change at the level of nucleic acids and proteins, integrating data from sequence variation, structural biology, and comparative analyses. It connects empirical observations from Smithsonian Institution collections, Natural History Museum, London specimens, and molecular datasets produced at European Molecular Biology Laboratory and National Institutes of Health centers. Researchers apply theoretical frameworks developed by figures associated with Princeton University, Tokyo Imperial University, and University of Chicago to interpret patterns across taxa such as Drosophila melanogaster, Homo sapiens, and Escherichia coli.
Molecular evolution emerged from collaborations among scientists at Cold Spring Harbor Laboratory, Carnegie Institution for Science, and University of California, Berkeley during the 20th century, influenced by contributions from Theodosius Dobzhansky, Ernst Mayr, and Motoo Kimura. Early molecular work involved protein comparisons by researchers linked to University of Geneva and University of Edinburgh and DNA structure elucidation at King's College London and Cambridge University. The field intersects methods developed at Max Planck Society, Wellcome Trust Sanger Institute, and Joint Genome Institute to examine evolutionary processes in lineages from Arabidopsis thaliana to Saccharomyces cerevisiae.
Mechanistic explanations draw on mutation processes characterized in studies at Los Alamos National Laboratory, Wistar Institute, and Howard Hughes Medical Institute, and on recombination landscapes mapped by teams at Broad Institute and European Bioinformatics Institute. Key mechanisms include point mutations observed in populations of Anopheles gambiae, gene conversion events studied in Mus musculus, insertions and deletions revealed in comparative work on Canis lupus familiaris and Pan troglodytes, and mobile element dynamics documented in research from Cold Spring Harbor and Institut Pasteur. Models of sequence evolution incorporate parameters estimated by scientists at Stanford University, Yale University, and Columbia University.
Molecular dating leverages molecular clock concepts refined by researchers at University of Tokyo and Imperial College London, applying relaxed-clock models implemented in software originating from groups at University of Oxford, University of California, San Diego, and ETH Zurich. Calibration strategies use fossil constraints from Smithsonian Institution, stratigraphic work at Natural History Museum, London, and geochronology conducted at US Geological Survey and Geological Survey of Canada. Studies span divergence estimates among Primates, Cetacea, Aves, and microbial clades such as Cyanobacteria and Archaea.
Population genetic foundations derive from theorists associated with University of Chicago, Columbia University, and University of California, Davis including Sewall Wright and Motoo Kimura. Empirical tests draw on datasets from field sites managed by Australian National University, Smithsonian Tropical Research Institute, and Max Planck Institute for Evolutionary Anthropology. Concepts such as genetic drift, effective population size, and selection coefficients are operationalized in studies of Drosophila simulans, Arabidopsis lyrata, Salmo salar, and pathogenic systems like Mycobacterium tuberculosis investigated at Centers for Disease Control and Prevention.
Comparative genomic approaches were enabled by initiatives at Human Genome Project, Wellcome Trust Sanger Institute, and Broad Institute and applied to taxa from Caenorhabditis elegans to Zea mays. Phylogenomic pipelines developed at National Center for Biotechnology Information, European Molecular Biology Laboratory, and Rijksmuseum van Natuurlijke Historie integrate orthology inference, synteny maps, and genome architecture comparisons across clades including Vertebrata, Lepidoptera, Fungi, and Proteobacteria. Large-scale projects such as those coordinated by International Barcode of Life and Earth BioGenome Project expand taxonomic sampling and resolution.
Empirical detection of adaptive evolution leverages methods from groups at Princeton University, Yale University, and Imperial College London to identify signatures in hemoglobins of Camelus dromedarius, antifreeze proteins of Notothenioidei, and immune loci in Homo sapiens populations sampled by Wellcome Trust Case Control Consortium and 1000 Genomes Project. Studies on convergent evolution reference findings from University of British Columbia and University of Auckland while experimental evolution efforts at University of Illinois Urbana-Champaign and Ecole Normale Supérieure reveal selection dynamics in microbial systems like Escherichia coli and Pseudomonas fluorescens.
Techniques span high-throughput sequencing platforms developed by Illumina, Inc., single-molecule approaches from Pacific Biosciences, and nanopore technologies from Oxford Nanopore Technologies, with analytical frameworks maintained at National Center for Biotechnology Information and European Bioinformatics Institute. Structural insights derive from cryo-EM work at Max Planck Institute for Biophysics and X-ray crystallography conducted at Stanford Synchrotron Radiation Lightsource and European Synchrotron Radiation Facility. Bioinformatic toolchains originate from labs at University of California, Santa Cruz, University of Bergen, and University of Geneva, supporting applications in metagenomics undertaken by Marine Biological Laboratory and pathogen surveillance by World Health Organization.