Horizontal gene transfer and gene dosage drives adaptation to wood colonization in a tree pathogen [electronic resource]
Septoria Canker; Fungal Genomics; Tree Disease; Poplar Pathogen.
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| Online Access: |
Online Access (via OSTI) |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. Office of Science ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2015.
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| Subjects: |
| Summary: | Septoria Canker; Fungal Genomics; Tree Disease; Poplar Pathogen. |
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| Abstract: | Some of the most damaging tree diseases are caused by pathogens that induce cankers, a stem deformation often lethal. To investigate the cause of this adaptation, we sequenced the genomes of poplar pathogens that do and do not cause cankers. We found a unique cluster of genes that produce secondary metabolites and are co-activated when the canker pathogen is grown on poplar wood and leaves. The gene genealogy is discordant with the species phylogeny, showing a signature of horizontal transfer from fungi associated with wood decay. Furthermore, genes encoding hemicellulose-degrading enzymes are up-regulated on poplar wood chips, with some having been acquired horizontally. In conclusion, we propose that adaptation to colonize poplar woody stems is the result of acquisition of these genes. |
| Item Description: | Published through SciTech Connect. 03/02/2015. Proceedings of the National Academy of Sciences of the United States of America 112 11 ISSN 0027-8424 AM. Braham Dhillon; Nicolas Feau; Andrea L. Aerts; Stéphanie Beauseigle; Louis Bernier; Alex Copeland; Adam Foster; Navdeep Gill; Bernard Henrissat; Padmini Herath; Kurt M. LaButti; Anthony Levasseur; Erika A. Lindquist; Eline Majoor; Robin A. Ohm; Jasmyn L. Pangilinan; Amadeus Pribowo; John N. Saddler; Monique L. Sakalidis; Ronald P. de Vries; Igor V. Grigoriev; Stephen B. Goodwin; Philippe Tanguay; Richard C. Hamelin. The Netherlands Genomics Initiative. |
| Physical Description: | p. 3451-3456 : digital, PDF file. |