A chromosome-scale assembly of the quinoa genome provides insights into the structure and dynamics of its subgenomes

Elodie Rey, Peter J Maughan, Florian Maumus, Daniel Lewis, Leanne Wilson, Juliana Fuller, Sandra M Schmöckel, Eric N Jellen, Mark Tester, David E Jarvis · 2023

Read A chromosome-scale assembly of the quinoa genome provides insights into the structure and dynamics of its subgenomes by Elodie Rey, Peter J Maughan, Florian Maumus, Daniel Lewis, Leanne Wilson, Juliana Fuller, Sandra M Schmöckel, Eric N Jellen, Mark Tester, David E Jarvis (2023) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-10719370.txt.

Description

Elodie Rey and a large team assemble the quinoa genome at chromosome scale. Their genome paper from twenty twenty-three serves global food security research. Quinoa is a seed crop with two merged ancestral genomes. Earlier assemblies were fragmented and missed chromosome structure.

Contact mapping stitched the genome into eighteen chromosome scaffolds. Tens of thousands of protein genes were annotated across them. Two diploid relatives helped untangle the merged subgenomes. A huge inversion was found on one chromosome arm. Repetitive DNA makes up most of the genome length. Breeders can now locate traits on real chromosomes. Salt and drought tolerance work may speed up.

Catalog record

CREATORElodie Rey, Peter J Maughan, Florian Maumus, Daniel Lewis, Leanne Wilson, Juliana Fuller, Sandra M Schmöckel, Eric N Jellen, Mark Tester, David E Jarvis
YEAR2023
COLLECTIONPAPERS
FORMATTXT
FILE SIZE60 KB
VERSION1.0
LICENSECC BY 4.0
RIGHTSCC BY
SOURCEEurope PMC

Source: https://europepmc.org/articles/PMC10719370

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