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  Transposable Elements in the Genome of the Lichen-Forming Fungus Umbilicaria pustulata and Their Distribution in Different Climate Zones along Elevation

Grande, F. D., Jamilloux, V., Choisne, N., Calchera, A., Rolshausen, G., Petersen, M., et al. (2021). Transposable Elements in the Genome of the Lichen-Forming Fungus Umbilicaria pustulata and Their Distribution in Different Climate Zones along Elevation. Biology, 11: 24. doi:10.3390/biology11010024.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000D-1DA9-5 Version Permalink: https://hdl.handle.net/21.11116/0000-000D-1DAA-4
Genre: Journal Article

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10.3390_biology11010024.pdf (Publisher version), 2MB
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https://hdl.handle.net/21.11116/0000-000D-1DAB-3
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Copyright Date:
2021
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by the authors. Licensee MDPI, Basel, Switzerland.
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https://creativecommons.org/licenses/by/4.0/

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https://www.mdpi.com/2079-7737/11/1/24 (Publisher version)
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 Creators:
Grande, Francesco Dal1, Author
Jamilloux, Véronique1, Author
Choisne, Nathalie1, Author
Calchera, Anjuli1, Author
Rolshausen, Gregor1, Author
Petersen, Malte2, Author
Schulz, Meike1, Author
Nilsson, Maria A1, Author
Schmitt, Imke1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Max Planck Institute of Immunobiology and Epigenetics, Max Planck Society, ou_2243648              

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Free keywords: TEs; environmental gradient; lichens; population genomics; terrestrial symbiosis
 Abstract: Transposable elements (TEs) are an important source of genome plasticity across the tree of life. Drift and natural selection are important forces shaping TE distribution and accumulation. Fungi, with their multifaceted phenotypic diversity and relatively small genome size, are ideal models to study the role of TEs in genome evolution and their impact on the host's ecological and life history traits. Here we present an account of all TEs found in a high-quality reference genome of the lichen-forming fungus Umbilicaria pustulata, a macrolichen species comprising two climatic ecotypes: Mediterranean and cold temperate. We trace the occurrence of the newly identified TEs in populations along three elevation gradients using a Pool-Seq approach to identify TE insertions of potential adaptive significance. We found that TEs cover 21.26% of the 32.9 Mbp genome, with LTR Gypsy and Copia clades being the most common TEs. We identified 28 insertions displaying consistent insertion frequency differences between the two host ecotypes across the elevation gradients. Most of the highly differentiated insertions were located near genes, indicating a putative function. This pioneering study of the content and climate niche-specific distribution of TEs in a lichen-forming fungus contributes to understanding the roles of TEs in fungal evolution.

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Language(s): eng - English
 Dates: 2021-12-24
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.3390/biology11010024
 Degree: -

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Title: Biology
Source Genre: Journal
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Publ. Info: Basel, Switzerland : MDPI
Pages: - Volume / Issue: 11 Sequence Number: 24 Start / End Page: - Identifier: Other: 2079-7737
CoNE: https://pure.mpg.de/cone/journals/resource/2079-7737