1997: Description and power analysis of two tests for detecting recent population bottlenecks
from allele frequency data.
One of Reich's findings was the presence of large numbers of what he terms 'population bottlenecks
Another factor that is problematic for determining the occurrence of population bottlenecks
is that field sampling methods likely introduce significant temporal bias.
Effects of population bottlenecks
on genetic diversity as measured by allozyme electrophoresis.
To estimate the population size reduction at the mature stage, recent population bottlenecks
were evaluated using version 1.2.02 of the BOTTLENECK software .
Distortion of allele frequency distributions provides a test for recent population bottlenecks
. Journal of Heredity, New York, v.89, n.3, p.
Because microsatellites evolve rapidly, they can provide useful data for studies on recent gene flow and population bottlenecks
and non-equilibrium models in population genetics.
Beginning with population bottlenecks
as an easily comprehensible example of where chance plays a major role, the book extends this concept to organisms with small numbers of cells and particularly focuses on Bonner's specialty, slime molds.
Several factors can of course affect genetic diversity, including population structure (Cherry and Wakeley, 2003), population bottlenecks
(O'Brien, 1994), natural selection and mating systems (Hedrick, 2005).
Previous studies had suggested that populations grew in size but not in genetic diversity, with variants squeezed out by natural selection and population bottlenecks
as humans colonized the world.
So population bottlenecks
that kill off diversity and restart the population from a single cell are powerful stabilizers of cellular cooperation, the scientists conclude.