ONT-Based Draft Genome Assembly and Annotation of Alternaria atra
2021
Bonthala, Bhawna | Small, Corinn S. | Lutz, Maximilian A. | Graf, Alexander | Krebs, Stefan | Sepúlveda, German | Stam, Remco
Species of Alternaria (phylum Ascomycota, family Pleosporaceae) are known as serious plant pathogens, causing major losses on a wide range of crops. Alternaria atra (previously known as Ulocladium atrum) can grow as a saprophyte on many hosts and causes Ulocladium blight on potato. It has been reported that it can also be used as a biocontrol agent against Botrytis cinerea. Here, we present a scaffold-level reference genome assembly for A. atra. The assembly contains 43 scaffolds with a total length of 39.62 Mbp, with scaffold N₅₀ of 3,893,166 bp, L₅₀ of 4, and the longest 10 scaffolds containing 89.9% of the assembled data. RNA-sequencing-guided gene prediction using BRAKER resulted in 12,173 protein-coding genes with their functional annotation. This first high-quality reference genome assembly and annotation for A. atra can be used as a resource for studying evolution in the highly complicated Alternaria genus and might help in understanding the mechanisms defining its role as pathogen or biocontrol agent. Copyright © 2021 The Author(s). This is an open access article distributed under the CC BY 4.0 International license.
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