gene flow


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gene flow

[′jēn ‚flō]
(genetics)
The passage and establishment of alleles characteristic of one breeding population into the gene pool of another population through hybridization and backcrossing.
References in periodicals archive ?
This partitioning of variation is expected for a perennial, outcrossing species because of increased gene flow between individuals and populations (therefore populations are genetically more similar).
Based on both genetic diversity and gene flow estimates, they concluded that the atomic blast sites act as ecological sinks.
Because genetic homogeneity typically implies sufficient gene flow to offset genetic divergence, continuous movement of red snapper at various life-history stages has been hypothesized (Goodyear 1995; Gold & Richardson 1998a; Patterson et al.
Cycadaceae) complex: Genetic structure and gene flow.
Autosomal, mtDNA, 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.
The first, a Defra funded study, was commissioned to monitor gene flow from genetically modified (GM) maize crops to adjacent non-GM maize crops.
Scientists found that pollen,probably carried by pollen beetles, would result in hybrid crosses and concluded gene flow ``declines in a gradual and erratic manner''.
The new coordinated approach is designed to intervene early in the testing process to prevent or minimize gene flow from experimental crops to conventional crops or biotech crops that have been approved for human consumption.
But it is clearly undesirable that there is an uncontrolled form of gene flow like this.
The new Syngenta patent does not describe its technology as a method to prevent farmers from saving seed, but as an approach to prevent unwanted gene flow from transgenic varieties.
Together, these data will enable a comprehensive examination of the genetic consequences of selection and gene flow across the genome, and whether there is adaptive introgression among species.