April 21, 2020  |  

A reference genome for pea provides insight into legume genome evolution.

Authors: Kreplak, Jonathan and Madoui, Mohammed-Amin and Cápal, Petr and Novák, Petr and Labadie, Karine and Aubert, Grégoire and Bayer, Philipp E and Gali, Krishna K and Syme, Robert A and Main, Dorrie and Klein, Anthony and Bérard, Aurélie and Vrbová, Iva and Fournier, Cyril and d'Agata, Leo and Belser, Caroline and Berrabah, Wahiba and Toegelová, Helena and Milec, Zbynek and Vrána, Jan and Lee, HueyTyng and Kougbeadjo, Ayité and Térézol, Morgane and Huneau, Cécile and Turo, Chala J and Mohellibi, Nacer and Neumann, Pavel and Falque, Matthieu and Gallardo, Karine and McGee, Rebecca and Tar'an, Bunyamin and Bendahmane, Abdelhafid and Aury, Jean-Marc and Batley, Jacqueline and Le Paslier, Marie-Christine and Ellis, Noel and Warkentin, Thomas D and Coyne, Clarice J and Salse, Jérome and Edwards, David and Lichtenzveig, Judith and Macas, Jirí and Doležel, Jaroslav and Wincker, Patrick and Burstin, Judith

We report the first annotated chromosome-level reference genome assembly for pea, Gregor Mendel's original genetic model. Phylogenetics and paleogenomics show genomic rearrangements across legumes and suggest a major role for repetitive elements in pea genome evolution. Compared to other sequenced Leguminosae genomes, the pea genome shows intense gene dynamics, most likely associated with genome size expansion when the Fabeae diverged from its sister tribes. During Pisum evolution, translocation and transposition differentially occurred across lineages. This reference sequence will accelerate our understanding of the molecular basis of agronomically important traits and support crop improvement.

Journal: Nature genetics
DOI: 10.1038/s41588-019-0480-1
Year: 2019

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