Population scale mapping of transposable element diversity reveals links to gene regulation and epigenomic variation

Variation in the presence or absence of transposable elements (TEs) is a major source of genetic variation between individuals. Here, we identified 23,095 TE presence/absence variants between 216 Arabidopsis accessions. Most TE variants were rare, and we find these rare variants associated with loca...

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Main Authors: Tim Stuart, Steven R Eichten, Jonathan Cahn, Yuliya V Karpievitch, Justin O Borevitz, Ryan Lister
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2016-12-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/20777
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author Tim Stuart
Steven R Eichten
Jonathan Cahn
Yuliya V Karpievitch
Justin O Borevitz
Ryan Lister
author_facet Tim Stuart
Steven R Eichten
Jonathan Cahn
Yuliya V Karpievitch
Justin O Borevitz
Ryan Lister
author_sort Tim Stuart
collection DOAJ
description Variation in the presence or absence of transposable elements (TEs) is a major source of genetic variation between individuals. Here, we identified 23,095 TE presence/absence variants between 216 Arabidopsis accessions. Most TE variants were rare, and we find these rare variants associated with local extremes of gene expression and DNA methylation levels within the population. Of the common alleles identified, two thirds were not in linkage disequilibrium with nearby SNPs, implicating these variants as a source of novel genetic diversity. Many common TE variants were associated with significantly altered expression of nearby genes, and a major fraction of inter-accession DNA methylation differences were associated with nearby TE insertions. Overall, this demonstrates that TE variants are a rich source of genetic diversity that likely plays an important role in facilitating epigenomic and transcriptional differences between individuals, and indicates a strong genetic basis for epigenetic variation.
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spelling doaj.art-b9938a4b115e4a21acf5bf95c30f171b2022-12-22T02:05:10ZengeLife Sciences Publications LtdeLife2050-084X2016-12-01510.7554/eLife.20777Population scale mapping of transposable element diversity reveals links to gene regulation and epigenomic variationTim Stuart0https://orcid.org/0000-0002-3044-0897Steven R Eichten1https://orcid.org/0000-0003-2268-395XJonathan Cahn2https://orcid.org/0000-0002-5006-741XYuliya V Karpievitch3Justin O Borevitz4Ryan Lister5https://orcid.org/0000-0001-6637-7239ARC Centre of Excellence in Plant Energy Biology, The University of Western Australia, Perth, AustraliaARC Centre of Excellence in Plant Energy Biology, The Australian National University, Canberra, AustraliaARC Centre of Excellence in Plant Energy Biology, The University of Western Australia, Perth, AustraliaARC Centre of Excellence in Plant Energy Biology, The University of Western Australia, Perth, AustraliaARC Centre of Excellence in Plant Energy Biology, The Australian National University, Canberra, AustraliaARC Centre of Excellence in Plant Energy Biology, The University of Western Australia, Perth, AustraliaVariation in the presence or absence of transposable elements (TEs) is a major source of genetic variation between individuals. Here, we identified 23,095 TE presence/absence variants between 216 Arabidopsis accessions. Most TE variants were rare, and we find these rare variants associated with local extremes of gene expression and DNA methylation levels within the population. Of the common alleles identified, two thirds were not in linkage disequilibrium with nearby SNPs, implicating these variants as a source of novel genetic diversity. Many common TE variants were associated with significantly altered expression of nearby genes, and a major fraction of inter-accession DNA methylation differences were associated with nearby TE insertions. Overall, this demonstrates that TE variants are a rich source of genetic diversity that likely plays an important role in facilitating epigenomic and transcriptional differences between individuals, and indicates a strong genetic basis for epigenetic variation.https://elifesciences.org/articles/20777epigeneticstransposable elementsArabidopsisDNA methylationgenomics
spellingShingle Tim Stuart
Steven R Eichten
Jonathan Cahn
Yuliya V Karpievitch
Justin O Borevitz
Ryan Lister
Population scale mapping of transposable element diversity reveals links to gene regulation and epigenomic variation
eLife
epigenetics
transposable elements
Arabidopsis
DNA methylation
genomics
title Population scale mapping of transposable element diversity reveals links to gene regulation and epigenomic variation
title_full Population scale mapping of transposable element diversity reveals links to gene regulation and epigenomic variation
title_fullStr Population scale mapping of transposable element diversity reveals links to gene regulation and epigenomic variation
title_full_unstemmed Population scale mapping of transposable element diversity reveals links to gene regulation and epigenomic variation
title_short Population scale mapping of transposable element diversity reveals links to gene regulation and epigenomic variation
title_sort population scale mapping of transposable element diversity reveals links to gene regulation and epigenomic variation
topic epigenetics
transposable elements
Arabidopsis
DNA methylation
genomics
url https://elifesciences.org/articles/20777
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