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Comparative Analysis of Carbohydrate Active Enzymes in the <i>Flammulina velutipes</i> var. <i>lupinicola</i> Genome
oleh: Hye-Won Yu, Ji-Hoon Im, Won-Sik Kong, Young-Jin Park
Format: | Article |
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Diterbitkan: | MDPI AG 2020-12-01 |
Deskripsi
The purpose of this study was to determine the genome sequence of <i>Flammulina velutipes</i> var. <i>lupinicola</i> based on next-generation sequencing (NGS) and to identify the genes encoding carbohydrate-active enzymes (CAZymes) in the genome. The optimal assembly (71 kmer) based on ABySS de novo assembly revealed a total length of 33,223,357 bp (49.53% GC content). A total of 15,337 gene structures were identified in the <i>F.</i><i>velutipes</i> var. <i>lupinicola</i> genome using ab initio gene prediction method with Funannotate pipeline. Analysis of the orthologs revealed that 11,966 (96.6%) out of the 15,337 predicted genes belonged to the orthogroups and 170 genes were specific for <i>F. velutipes</i> var. <i>lupinicola</i>. CAZymes are divided into six classes: auxiliary activities (AAs), glycosyltransferases (GTs), carbohydrate esterases (CEs), polysaccharide lyases (PLs), glycoside hydrolases (GHs), and carbohydrate-binding modules (CBMs). A total of 551 genes encoding CAZymes were identified in the <i>F. velutipes</i> var. <i>lupinicola</i> genome by analyzing the dbCAN meta server database (HMMER, Hotpep, and DIAMOND searches), which consisted of 54–95 AAs, 145–188 GHs, 55–73 GTs, 6–19 PLs, 13–59 CEs, and 7–67 CBMs. CAZymes can be widely used to produce bio-based products (food, paper, textiles, animal feed, and biofuels). Therefore, information about the CAZyme repertoire of the <i>F. velutipes</i> var. <i>lupinicola</i> genome will help in understanding the lignocellulosic machinery and in-depth studies will provide opportunities for using this fungus for biotechnological and industrial applications.