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| McDonald-Kreitman-Test× | Koaleszenztheorie× | |
|---|---|---|
| Fachgebiet | Genetik | Genetik |
| Familie | Process / pipeline | Process / pipeline |
| Entstehungsjahr≠ | 1991 | 1982 |
| Urheber≠ | James McDonald & Martin Kreitman | John Kingman |
| Typ≠ | Hypothesis test | Stochastic process model |
| Wegweisende Quelle≠ | McDonald, J. H., & Kreitman, M. (1991). Adaptive protein evolution at the Adh locus in Drosophila. Nature, 351(6328), 652–654. DOI ↗ | Kingman, J. F. C. (1982). The coalescent. Stochastic Processes and their Applications, 13(3), 235–248. DOI ↗ |
| Aliasnamen | MK test, Positive selection test | Kingman Coalescent, n-coalescent |
| Verwandt | 4 | 4 |
| Zusammenfassung≠ | The McDonald-Kreitman (MK) test is a statistical method for detecting adaptive evolution by comparing ratios of synonymous and nonsynonymous substitutions within and between species. Developed by James McDonald and Martin Kreitman in 1991, this test exploits the key insight that neutral mutations accumulate at similar rates within and between species, while adaptive (nonsynonymous) substitutions should be enriched between species if they have been fixed by positive selection. The MK test has become a standard tool in molecular evolutionary biology for identifying genes under natural selection. | Coalescent theory is a probabilistic framework that traces the genealogical history of DNA sequences backward in time to their most recent common ancestor. Developed by John Kingman in 1982, this method forms the foundation of modern population genetics, enabling researchers to understand demographic events, estimate genetic parameters, and reconstruct evolutionary histories from modern genetic data. |
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