Genetic hitchhiking

Term · Chemistry · MLC-T-CHM-004835

The phenomenon where an allele at one locus increases in frequency not because it is under direct positive selection, but because it is physically linked to a nearby allele that is undergoing positive selection. This co-selection occurs when the beneficial allele sweeps through a population, carrying along neutral or even slightly deleterious alleles on the same chromosome. The extent of hitchhiking depends on the recombination rate between the selected and linked loci.

Table 1. Record
Identifier	MLC-T-CHM-004835
Field	Chemistry
Subject	Chemistry and Human Health
References	PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 890 (https://doi.org/10.1351/PAC-REC-08-07-09)

Record as JSON

{
  "id": "MLC-T-CHM-004835",
  "term": "Genetic hitchhiking",
  "field": "Chemistry",
  "definition": "The phenomenon where an allele at one locus increases in frequency not because it is under direct positive selection, but because it is physically linked to a nearby allele that is undergoing positive selection. This co-selection occurs when the beneficial allele sweeps through a population, carrying along neutral or even slightly deleterious alleles on the same chromosome. The extent of hitchhiking depends on the recombination rate between the selected and linked loci.",
  "subject": "Chemistry and Human Health",
  "references": [
    "PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 890 (https://doi.org/10.1351/PAC-REC-08-07-09)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/genetic-hitchhiking/"
}

Record 5,119 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.