The 'Bipartite' Structure of the First Genome of Ampelomyces quisqualis, a Common Hyperparasite and Biocontrol Agent of Powdery Mildews, May Point to Its Evolutionary Origin from Plant Pathogenic Fungi

Huth, Lauren and Ash, Gavin J. and Idnurm, Alexander and Kiss, Levente ORCID: https://orcid.org/0000-0002-4785-4308 and Vaghefi, Niloofar ORCID: https://orcid.org/0000-0003-0430-4856 (2021) The 'Bipartite' Structure of the First Genome of Ampelomyces quisqualis, a Common Hyperparasite and Biocontrol Agent of Powdery Mildews, May Point to Its Evolutionary Origin from Plant Pathogenic Fungi. Genome Biology and Evolution, 13 (8). pp. 1-7.

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Abstract

Powdery mildews are among the most important plant pathogens worldwide, which are often attacked in the field by mycoparasitic fungi belonging to the genus Ampelomyces. The taxonomy of the genus Ampelomycesis unresolved, but well-supported molecular operational taxonomic units were repeatedly defined suggesting that the genus may include at least four to seven species. Some Ampelomyces strains were commercialized as biocontrol agents of crop pathogenic powdery mildews. However, the genomic mechanisms underlying their mycoparasitism are still poorly understood. To date, the draft genome of a single Ampelomyces strain, designated as HMLAC05119, has been released. We report a high-quality, annotated hybrid draft genome assembly of A. quisqualis strain BRIP 72107, which, based on phylogenetic analyses, is not conspecific with HMLAC 05119. The constructed genome is 40.38 Mb in size, consisting of 24 scaffolds with an N50 of 2.99 Mb and 96.2% completeness. Our analyses revealed bipartite structure of Ampelomyces genomes, where GC-balanced genomic regions are interspersed by longer or shorter stretches of AT-rich regions. This is also a hallmark of many plant pathogenic fungi and provides further evidence for evolutionary affinity of Ampelomyces species to plant pathogenic fungi. The high-quality genome and annotation produced here provide an important resource for future genomic studies of mycoparasitisim to decipher molecular mechanisms underlying biocontrol processes and natural tritrophic interactions.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. ThisisanOpenAccessarticledistributedunderthetermsoftheCreativeCommonsAttribution-NonCommercialLicense(http://creativecommons.org/licenses/by-nc/4.0/),whichpermitsnoncommercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Faculty/School / Institute/Centre: Current - Institute for Life Sciences and the Environment - Centre for Crop Health (24 Mar 2014 -)
Faculty/School / Institute/Centre: Current - Institute for Life Sciences and the Environment - Centre for Crop Health (24 Mar 2014 -)
Date Deposited: 04 Jan 2022 03:23
Last Modified: 10 Jan 2022 02:30
Uncontrolled Keywords: Dothideomycetes; genomic resources; mycoparasite
Fields of Research (2008): 06 Biological Sciences > 0605 Microbiology > 060505 Mycology
06 Biological Sciences > 0607 Plant Biology > 060799 Plant Biology not elsewhere classified
Fields of Research (2020): 31 BIOLOGICAL SCIENCES > 3107 Microbiology > 310705 Mycology
31 BIOLOGICAL SCIENCES > 3108 Plant biology > 310899 Plant biology not elsewhere classified
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970106 Expanding Knowledge in the Biological Sciences
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280102 Expanding knowledge in the biological sciences
Identification Number or DOI: https://doi.org/10.1093/gbe/evab182
URI: http://eprints.usq.edu.au/id/eprint/45087

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