The First Steps of Transposable Elements Invasion: Parasitic Strategy vs. Genetic Drift

From: Genetics | Date: February 1, 2005| Author: | Copyright information

ABSTRACT

Transposable elements are often considered as selfish DNA sequences able to invade the genome of their host species. Their evolutive dynamics are complex, due to the interaction between their intrinsic amplification capacity, selection at the host level, transposition regulation, and genetic drift. Here, we propose modeling the first steps of TE invasion, i.e., just after a horizontal transfer, when a single copy is present in the genome of one individual. If the element has a constant transposition rate, it will disappear in most cases: the elements with low-transposition rate are ...

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