Chromosome-level genome assemblies to rediscover and conserve Catalonia’s biodiversity

Authors

  • Jèssica Gómez-Garrido Centre Nacional d’Anàlisi Genòmica - Centre de Regulació Genòmica (CNAG-CRG), Barcelona Institute of Science and Technology (BIST)
  • Fernando Cruz Centre Nacional d’Anàlisi Genòmica - Centre de Regulació Genòmica (CNAG-CRG), Barcelona Institute of Science and Technology (BIST)
  • Marc Palmada-Flores Department of Medicine and Life Sciences (MELIS), Institut de Biologia Evolutiva, Universitat Pompeu Fabra ‐ CSIC
  • Tyler Alioto Centre Nacional d’Anàlisi Genòmica - Centre de Regulació Genòmica (CNAG-CRG), Barcelona Institute of Science and Technology (BIST)

Keywords:

genome assembly, polishing, chromosome-level scaffolding, sequencing, chromosome-level assemblies.

Abstract

It is very important to have a knowledge of the genomes of the species around us in order to preserve a region’s biodiversity. Assembling a genome involves combining the fragmented reads produced by sequencers into a contiguous sequence that represents the complete genome of the sequenced individual. Before the incorporation of long-read sequencing technologies, most of the genome assemblies that were produced were highly fragmented, limiting their utility for many downstream genomic analyses. The appearance of new technologies in the field of genome assembly has simplified the process and improved the quality of the resulting assemblies. The steps for producing a reference genome include contig assembly, sequence polishing, chromosome-level scaffolding and manual curation of the final assembly. A reference genome assembly allows multiple genomic analyses, which can greatly benefit the design of conservation plans.

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Issue

Vol. 72 (2022)

Section

Articles

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