Abstract
ABSTRACTColossoma macropomum known as “tambaqui” is the largest Characiformes fish in the Amazon River Basin and a leading species in Brazilian aquaculture and fisheries. Good quality meat and great adaptability to culture systems are some of its remarkable farming features. To support studies into the genetics and genomics of the tambaqui, we have produced the first high-quality genome for the species. We combined Illumina and PacBio sequencing technologies to generate a reference genome, assembled with 39X coverage of long reads and polished to a QV=36 with 130X coverage of short reads. The genome was assembled into 1,269 scaffolds to a total of 1,221,847,006 bases, with a scaffold N50 size of 40 Mb where 93% of all assembled bases were placed in the largest 54 scaffolds that corresponds to the diploid karyotype of the tambaqui. Furthermore, the NCBI Annotation Pipeline annotated genes, pseudogenes, and non-coding transcripts using the RefSeq database as evidence, guaranteeing a high-quality annotation. A Genome Data Viewer for the tambaqui was produced which benefits any groups interested in exploring unique genomic features of the species. The availability of a highly accurate genome assembly for tambaqui provides the foundation for novel insights about ecological and evolutionary facets and is a helpful resource for aquaculture purposes.
Publisher
Cold Spring Harbor Laboratory
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