Title

Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome

Authors

Boulos Chalhoub, Université d’Evry Val d’Essone
France Denoeud, Commissariat à l’Energie Atomique, Evry
Shengyi Liu, Chinese Academy of Agricultural Sciences
Isobel AP Parkin, Agriculture and Agri-Food Canada
Haibao Tang, J. Craig Venter Institute
Xiyin Wang, University of Georgia
Julien Chiquet, Université d’Evry val d’Essonne
Harry Belcram, Université d’Evry Val d’Essone
Chaobo Tong, Chinese Academy of Agricultural Sciences
Birgit Samans, Justus Liebig Universitat Giessen
Margot Correa, Commissariat à l’Energie Atomique, Evry
Corinne Da Silva, Commissariat à l’Energie Atomique, Evry
Jeremy Just, Université d’Evry Val d’Essone
Cyril Falentin, Institut de Génétique, Environnement et Protection des Plantes (IGEPP)
Chu Shin Koh, National Research Council Canada
Isabelle Le Clainche, Université d’Evry Val d’Essone
Maria Bernard, Commissariat à l’Energie Atomique, Evry
Pascal Bento, Commissariat à l’Energie Atomique, Evry
Benjamin Noel, Commissariat à l’Energie Atomique, Evry
Karine Labadie, Commissariat à l’Energie Atomique, Evry
Adriana Alberti, Commissariat à l’Energie Atomique, Evry
Mathieu Charles, INRA, Etude du Polymorphisme des Génomes Végétaux
Dominique Arnaud, Université d’Evry Val d’Essone
Hui Guo, University of Georgia
Christian Daviaud, Laboratory for Epigenetics and Environment, Centre National de Génotypage
Salman Alamery, University of Queensland
Kamel Jabbari, Université d’Evry Val d’Essone
Meixia Zhao, Purdue University
Patrick P. Edger, University of California - Berkeley
Houda Chelaifa, Université d’Evry Val d’Essone
David Tack, University of British Columbia
Gilles Lassalle, INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP)
Imen Mestiri, Université d’Evry Val d’Essone
Nicolas Schnel, INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP)
Marie-Christine Le Paslier, INRA, Etude du Polymorphisme des Génomes Végétaux
Guangyi Fan, Beijing Genome Institute–Shenzhen
Victor Renault, Fondation Jean Dausset–Centre d’Étude du Polymorphisme Humain
Philipp E. Bayer, University of Queensland
Agnieszka A. Golicz, University of Queensland
Sahana Manoli, University of Queensland
Tae-Ho Lee, University of Georgia
Vinh Ha Dinh Thi, Université d’Evry Val d’Essone
Smahane Chalabi, Université d’Evry Val d’Essone
Qiong Hu, Chinese Academy of Agricultural Sciences
Chuchuan Fan, Huazhong Agricultural University
Reece Tollenaere, University of Queensland
Yunhai Lu, Université d’Evry Val d’Essone
Christophe Battail, Commissariat à l’Energie Atomique (CEA)
Jinxiong Shen, Huazhong Agricultural University
Christine HD Sidebottom, National Research Council Canada
Xinfa Wang, Chinese Academy of Agricultural Sciences
Aurélie Canaguier, Université d’Evry Val d’Essone
Aurélie Chauveau, INRA, Etude du Polymorphisme des Génomes Végétaux
Aurélie Bérard, INRA, Etude du Polymorphisme des Génomes Végétaux
Gwenaëlle Deniot, INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP)
Mei Guan, Hunan Agricultural University
Zhongsong Liu, Hunan Agricultural University
Fengming Sun, Beijing Genome Institute–Shenzhen
Yong Pyo Lim, Chungnam National University
Eric Lyons, University of Arizona
Christopher D. Town, J. Craig Venter Institute
Ian Bancroft, University of York
Xiaowu Wang, Chinese Academy of Agricultural Sciences
Jinling Meng, Huazhong Agricultural University
Jianxin Ma, Purdue University
J Chris Pires, University of Missouri
Graham J. King, Southern Cross UniversityFollow
Dominique Brunel, INRA, Etude du Polymorphisme des Génomes Végétaux
Régine Delourme, INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP)
Michel Renard, INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP)
Jean-Marc Aury, Commissariat à l’Energie Atomique (CEA)
Keith L. Adams, University of British Columbia
Jacqueline Batley, University of Queensland
Rod J. Snowdon, Justus Liebig University
Jorg Tost, Laboratory for Epigenetics and Environment, Centre National de Génotypage
David Edwards, University of Queensland
Yongming Zhou, Huazhong Agricultural University
Wei Hua, Chinese Academy of Agricultural Sciences
Andrew G. Sharpe, National Research Council Canada
Andrew H. Paterson, University of Georgia
Chunyun Guan, Hunan Agricultural University
Patrick Wincker, Commissariat à l’Energie Atomique (CEA), Evry

Document Type

Article

Publication details

Chalhoub, B, Denoeud, F, Liu, S, Parkin, IAP, Tang, H, Wang, X, Chiquet, J, Belcram, H, Tong, C, Samans, B, Correa, M, Da Silva, C, Just, J, Falentin, C, Koh, SC, Le Clainche, I, Bernard, M, Bento, P, Noel, B, Labadie, K, Alberti, A, Charles, M, Arnaud, D, Guo, H, Daviaud, C, Alamery, S, Jabbari, K, Zhao, M, Edger, PP, Chelaifa, H, Tack, D, Lassalle, G,Mestiri, I, Schnel, N, Le, Paslier, MC, Fan, G, Renault, V, Bayer, PE, Golicz, AA, Manoli, S, Lee, TH, Thi, VHD, Chalabi, S, Hu, Q, Fan, C, Tollenaere, R, Lu, Y, Battail, C, Shen, J, Sidebottom, CHD, Wang, X, Canaguier, A, Chauveau, A, Bérard, A, Deniot, A, Guan, M, Liu, Z, Sun, F, Lim, YP, Lyons, E, Town, CD, Bancroft, I, Wang, X, Meng, J, Ma, J, Pires, JC, King, GJ, Brunel, D, Delourme, R, Renard, M, Aury, JM, Adams, KL, Batley, J, Snowdon, RJ, Tost, J, Edwards, D, Zhou, Y, Hu, W, Sharpe, AG, Paterson, AH, Guan, C & Wincker, P 2014, 'Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome ', Science, vol. 345, no. 6199, pp. 950-953.

Article available on Open Access

Peer Reviewed

Peer-Reviewed

Abstract

Oilseed rape (Brassica napus L.) was formed ~7500 years ago by hybridization between B. rapa and B. oleracea, followed by chromosome doubling, a process known as allopolyploidy. Together with more ancient polyploidizations, this conferred an aggregate 72× genome multiplication since the origin of angiosperms and high gene content. We examined the B. napus genome and the consequences of its recent duplication. The constituent An and Cn subgenomes are engaged in subtle structural, functional, and epigenetic cross-talk, with abundant homeologous exchanges. Incipient gene loss and expression divergence have begun. Selection in B. napus oilseed types has accelerated the loss of glucosinolate genes, while preserving expansion of oil biosynthesis genes. These processes provide insights into allopolyploid evolution and its relationship with crop domestication and improvement.