15127 IUPAC Gold Book - Wahlund effect 10.1351/goldbook.15127 15127 current 1 Net deficit of heterozygotes when two populations, each in Hardy–Weinberg equilibrium but with different allele frequencies, are mixed and the genotype frequencies quantified in a combined population sample. Hardy–Weinberg equilibrium https://goldbook.iupac.org//terms/view/14731 population https://goldbook.iupac.org//terms/view/14932 PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 962 (https://doi.org/10.1351/PAC-REC-08-07-09) https://goldbook.iupac.org/terms/view/15127/html https://goldbook.iupac.org/terms/view/15127/json https://goldbook.iupac.org/terms/view/15127/plain Citation: 'Wahlund effect' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.15127 The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. 2026-04-27T17:45:48+00:00