Next Article in Journal
RNA Sequencing Analysis of Chicken Cecum Tissues Following Eimeria tenella Infection in Vivo
Next Article in Special Issue
Special Issue: Repetitive DNA Sequences
Previous Article in Journal
Identification of Loci Controlling the Dwarfism Trait in the White Sailfin Molly (Poecilia latipinna) Using Genome-Wide Association Studies Based on Genotyping-By-Sequencing
Previous Article in Special Issue
Centromeric Satellite DNAs: Hidden Sequence Variation in the Human Population
Open AccessReview

On the Population Dynamics of Junk: A Review on the Population Genomics of Transposable Elements

New York University Abu Dhabi, P.O. 129188 Saadiyat Island, Abu Dhabi, UAE
Author to whom correspondence should be addressed.
Genes 2019, 10(6), 419;
Received: 4 April 2019 / Revised: 5 May 2019 / Accepted: 21 May 2019 / Published: 30 May 2019
(This article belongs to the Special Issue Repetitive DNA Sequences)
Transposable elements (TEs) play an important role in shaping genomic organization and structure, and may cause dramatic changes in phenotypes. Despite the genetic load they may impose on their host and their importance in microevolutionary processes such as adaptation and speciation, the number of population genetics studies focused on TEs has been rather limited so far compared to single nucleotide polymorphisms (SNPs). Here, we review the current knowledge about the dynamics of transposable elements at recent evolutionary time scales, and discuss the mechanisms that condition their abundance and frequency. We first discuss non-adaptive mechanisms such as purifying selection and the variable rates of transposition and elimination, and then focus on positive and balancing selection, to finally conclude on the potential role of TEs in causing genomic incompatibilities and eventually speciation. We also suggest possible ways to better model TEs dynamics in a population genomics context by incorporating recent advances in TEs into the rich information provided by SNPs about the demography, selection, and intrinsic properties of genomes. View Full-Text
Keywords: transposable elements; population genetics; selection; drift; coevolution transposable elements; population genetics; selection; drift; coevolution
Show Figures

Figure 1

MDPI and ACS Style

Bourgeois, Y.; Boissinot, S. On the Population Dynamics of Junk: A Review on the Population Genomics of Transposable Elements. Genes 2019, 10, 419.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Search more from Scilit
Back to TopTop