The challenges of predicting transposable element activity in hybrids

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Abstract
Transposable elements (TEs) are ubiquitous mobile genetic elements that hold both disruptive and adaptive potential for species. It has long been postulated that their activity may be triggered by hybridization, a hypothesis that received mixed support from studies in various species. While host defense mechanisms against TEs are being elucidated, the increasing volume of genomic data and bioinformatic tools specialized in TE detection enable in-depth characterization of TEs at the levels of species and populations. Here, I borrow elements from the genome ecology theory to illustrate how knowledge of the diversity of TEs and host defense mechanisms may help predict the activity of TEs in the face of hybridization, and how current limitations make this task especially challenging.
Funding Information
  • National Sciences and Engineering Research Council of Canada (Alexander Graham Bell doctoral scholarship)

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