Retrieving "Genetic Differentiation" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Gene Flow

   Linked via "genetic differentiation"

   | Statistic | Description | Interpretation Relative to Gene Flow |
   | :--- | :--- | :--- |
   | $F{ST}$ | Fixation Index; measures genetic differentiation between populations. | Lower $F{ST}$ values generally indicate higher historic gene flow. Values near zero suggest complete panmixia. |
   | $G_{ST}$ | Nei's measure of genetic diversity partitioning. | Useful for comparing migration rates across multiple species pairs, as it is less sensitive to het…

2. Genetic Drift

   Linked via "genetic differentiation"

   Interaction with Gene Flow
   Gene flow (migration) acts as a homogenizing force, opposing the divergent tendencies caused by drift between isolated populations. The balance between drift and migration determines the degree of genetic differentiation, quantified by measures such as $F{ST}$. In models involving migration ($m$) and genetic drift (approximated by $1/(2Ne)$), the input of alleles from a source population ($pB$) counteracts local random fluctuations. The equilibrium frequency ($\hat{p}A$) in the rec…