High-quality genome sequence of white lupin provides insight into soil exploration and seed quality

Hufnagel Maciel Bárbara, Marques André, Soriano Alexandre, Marquès Laurence, Divol Fanchon, Doumas Patrick, Sallet Erika, Mancinotti Davide, Carrère Sébastien, Marande William, Arribat Sandrine, Keller Jean, Huneau Cécile, Blein Thomas, Aimé Delphine, Laguerre Malika, Taylor Jemma, Schubert Veit, Nelson Matthew, Geu-Flores Fernando, Crespi Martin, Gallardo Karine, Delaux Pierre-Marc, Salse Jérôme, Berges Hélène, Guyot Romain, Gouzy Jérôme, Péret Benjamin. 2020. High-quality genome sequence of white lupin provides insight into soil exploration and seed quality. Nature Communications, 11:492, 12 p.

https://doi.org/10.1038/s41467-019-14197-9

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Quartile : Outlier, Sujet : MULTIDISCIPLINARY SCIENCES

Résumé : White lupin (Lupinus albus L.) is an annual crop cultivated for its protein-rich seeds. It is adapted to poor soils due to the production of cluster roots, which are made of dozens of determinate lateral roots that drastically improve soil exploration and nutrient acquisition (mostly phosphate). Using long-read sequencing technologies, we provide a high-quality genome sequence of a cultivated accession of white lupin (2n = 50, 451 Mb), as well as de novo assemblies of a landrace and a wild relative. We describe a modern accession displaying increased soil exploration capacity through early establishment of lateral and cluster roots. We also show how seed quality may have been impacted by domestication in term of protein profiles and alkaloid content. The availability of a high-quality genome assembly together with companion genomic and transcriptomic resources will enable the development of modern breeding strategies to increase and stabilize white lupin yield.

Mots-clés Agrovoc : génome, Lupinus albus, amélioration des plantes, physiologie végétale, expression des gènes, séquence nucléotidique, génomique

Mots-clés libres : Agricultural genetics, Plant domestication, Plant genetics

Agences de financement européennes : European Agricultural Guarantee Fund

Programme de financement européen : H2020

Projets sur financement : (EU) Unravelling cluster root development in white lupin

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