Enterobacter hormaechei_B56 Genome sequencing and assembly. Enterobacter hormaechei

Genome Assembly of Enterobacter hormaechei_B56 (Eh_B56) BacteriaTo achieve a highly complete de novo microbial assembly, the hierarchical assembly method introduced by Pacbio is used by default. This approach addresses the challenge of assembling bacterial regions with repetitive sequences, and its internal processes mitigate the disadvantage of Pacbio's relatively high single base error rate. When the average sequencing depth exceeds 50x, the resulting genome accuracy can reach 99.999%. The specific assembly process is outlined below:First, long sub-reads are selected as seed reads, which are then corrected with shorter sub-reads. These corrected seed reads are then assembled and concatenated into contigs. Subsequently, pbmm2 is used to align the subreads to the assembled contigs and is primarily used to evaluate the assembly results. Additionally, gcpp is used for further correction to obtain high quality assembled sequences.Alternatively, Canu can be selected for the assembly process, which consists of three main steps: correction, trimming, and assembly. Once assembly is complete, evaluation and correction (as described above) are performed.