Affiliation:
1. Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, Oklahoma
Abstract
ABSTRACT
Genetic bottlenecks are stochastic events that limit genetic variation in a population and result in founding populations that can lead to genetic drift. Evidence of past genetic bottlenecks in numerous biological systems, from mammals to viruses, has been described. In this study, we used an artificial population of
Cucumber mosaic virus
consisting of 12 restriction enzyme marker-bearing mutants. This population was inoculated onto young leaves of tobacco plants and monitored throughout the course of systemic infection. We show here that the genetic variation in a defined population of an RNA virus is significantly, stochastically, and reproducibly reduced during the systemic infection process, providing clear evidence of a genetic bottleneck.
Publisher
American Society for Microbiology
Subject
Virology,Insect Science,Immunology,Microbiology
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