Data from: Genome assembly of a diversity panel of Chenopodium quinoa

Quinoa is an important crop for the future challenges of food and nutrient
security in the context of climate changes in developing countries. Deep
characterization of the genetic diversity of quinoa germplasm at both
genetic and genomic levels is needed to support quinoa agronomical
improvement and adaptation following its worldwide cultivation expansion.
In this study, we report the construction of chromosome-scale genome
assemblies of eight C. quinoa accessions covering the spread of phenotypic
and genetic diversity of both Lowland and Highland quinoas. The assemblies
were produced from a combination of PacBio HiFi reads and Bionano Saphyr
optical maps, with total assembly sizes averaging 1.28 Gb with an average
N50 of 71.1 Mb. Between 43,733 and 48,564 gene models were predicted for
the eight new quinoa genomes, and on average, about 66% of each quinoa
genome was classified as repetitive sequences. Alignment between the eight
genome assemblies was performed and allowed the identification of
structural rearrangements including inversion, translocation, and
duplication. In summary, these eight novel C. quinoa genome
assemblies provide a resource for association genetics, comparative
genomics, and pan-genome analyses for the discovery of genetic components
and variations underlying agriculturally important traits.