gene flow


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gene flow

changes over time in the genetic composition of a population as a result of migration rather than of mutation and selection.

gene flow

n.
Transfer of genes from one population to another, as by migration or the dispersal of seeds and pollen.

gene flow

The movement of genes from one group of organisms to another.

gene flow

or

gene migration

the movement of genes from one organism/ population to another.
References in periodicals archive ?
Studies have shown gene flow provides an avenue for the transfer of genes from cultivated to natural populations (Burke et al.
Third, we investigated patterns of gene flow to determine if the Sumgayit region is acting as an ecological sink.
However, the time since expansion indicated from the mismatch distribution ([approximately equal to]200,000 - 450,000 years ago) would seem too long for genetic divergence not to have arisen, assuming there has been no gene flow among localities and that effective population sizes are even one-tenth to one-hundredth of the current estimated census size of 7-20 million individuals.
Autosomal, mtNDA, and Y-Chromosome Diversity in Amerinds: Pre and Post-Columbian Patterns of Gene Flow in South America," American Journal of Human Genetics 67 (2000): 1277-1286; Mauricio L.
Gene flow and cross pollination were studied at 53 forage maize trials across the UK in a range of climatic conditions and its central conclusion was that a separation distance of only 24.
The three agencies would each publish a new set of guidance documents, which do not carry the force of law, outlining how to prevent or minimize gene flow from experimental crops, thus ensuring that no unapproved proteins enter the food chain.
Therefore, the apparent correlation observed between genetic and geographic distances among the populations suggests that the data conform to an isolation-by-distance model of gene flow, and this model (isolation-by-distance) is suitable for investigating marine distribution (Palumbi 2003).
Gene flow is an age-old process that is well understood by farmers, who grow hundreds of crops, virtually all of which have been genetically improved in some way with a variety of techniques.
25 signifies that there is sufficient gene flow between localities to negate the effects of genetic drift.
First, that spined soldier bugs from the geographically distant field locations have greater genetic variation compared to laboratory colonies; second, that individuals from different field samples have a high degree of genetic variation and gene flow between locations; and, third, that laboratory reared colonies will retain genetic diversity despite restricted gene flow.