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Article Dans Une Revue Science Année : 2014

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

Boulos Chalhoub (1) , France Denoeud (2, 3) , Shengyi Liu (4) , Isobel A. P. Parkin (5) , Haibao Tang (6, 7) , Xiyin Wang (8, 9) , Julien Chiquet (10) , Harry Belcram (1) , Chaobo Tong (4) , Birgit Samans (11) , Margot Corréa (2, 3) , Corinne da Silva (3, 2) , Jérémy Just (1, 12) , Cyril Falentin (12) , Chu Shin Koh (13) , Isabelle Le Clainche (1) , Maria Bernard (2, 3) , Pascal Bento (2, 3) , Benjamin Noel (2, 3) , Karine Labadie (14) , Adriana A. Alberti (14) , Mathieu Charles (15, 16) , Dominique Arnaud (1) , Hui Guo (17) , Christian Daviaud (18) , Salman Alamery (19) , Kamel Jabbari (1, 20) , Meixia Zhao (21) , Patrick P. Edger (22) , Houda Chelaifa-Ammari (1) , David Tack (23) , Gilles Lassalle (12) , Imen Mestiri (1) , Nicolas Schnel (12) , Marie-Christine Le Paslier (15, 16) , Chuchuan Fan (24) , Guangyi Fan (25) , Victor Renault (26) , Philippe E. Bayer (19) , Agnieszka A. Golicz (19) , Sahana Manoli (19) , Tae-Ho Lee (27) , Vinh Ha Dinh Thi (1) , Smahane Chalabi (1) , Qiong Hu (4) , Reece Tollenaere (19) , Yunhai Lu (1) , Christophe Battail (2, 3) , Jinxiong Shen (24) , Christine H. D. Sidebottom (13) , Xinfa Wang (4) , Aurelie Canaguier (1) , Aurelie Chauveau (15, 16) , Aurélie Berard (15, 16) , Gwenaëlle Deniot (12) , Mei Guan (28) , Zhongsong Liu (28) , Fengming Sun (25) , Yong Pyo Lim (29) , Eric Lyons (30) , Christopher D. Town (30) , Ian Bancroft (31) , Xiaowu Wang (32) , Jinling Meng (24) , Jianxin Ma (21) , J. Chris Pires (33) , Graham J. King (34) , Dominique Brunel (15) , Régine Delourme (12) , Michel Renard (12) , Jean-Marc Aury (2, 3) , Keith L. Adams (23) , Patrick Wincker (2) , Jacqueline Batley (19, 35) , Rod J. Snowdon (11) , Jörg Tost (36) , David Edwards (19, 35) , Yongming Zhou (24) , Wei Hua (4) , Andrew G. Sharpe (13) , Andrew H. Paterson (27) , Chunyun Guan (28)
1 URGV - Unité de recherche en génomique végétale
2 UMR 8030 - Génomique métabolique
3 LBGB - Laboratoire de Bioinformatique pour la Génomique et la Biodiversité
4 Oil Crops Research Institute, Key Laboratory of Biology and Genetic Improvement of Oil Crops
5 AAFC - Agriculture and Agri-Food
6 JCVI - J. Craig Venter Institute [La Jolla, USA]
7 Center for Genomics and Biotechnology
8 University of Georgia [USA]
9 School of Life Sciences, Center of Genomics and Computational Biology
10 LaMME - Laboratoire de Mathématiques et Modélisation d'Evry
11 Research Center for Biosystems, Land Use and Nutrition, Department of Plant Breeding
12 IGEPP - Institut de Génétique, Environnement et Protection des Plantes
13 NRC - National Research Council of Canada
14 IG - Institut de Génomique d'Evry
15 EPGV - Etude du Polymorphisme des Génomes Végétaux
16 Centre National de Genotypage
17 Plant Genome Mapping Laboratory,
18 Laboratoire épigénétique et environnement
19 School of Agriculture and Food Sciences, Australian Centre for Plant Functional Genomics
20 Cologne Center for Genomics
21 Department of Agronomy
22 Department of Plant and Microbial Biology
23 UBC Botany - Department of Botany [Vancouver]
24 National Key Laboratory of Crop Genetic Improvement [China]
25 Beijing Genome Institute
26 Fondation Jean Dausset - Centre d’Étude du Polymorphisme Humain
27 Plant Genome Mapping Laboratory
28 College of Agronomy
29 Department of Horticulture, Molecular Genetics and Genomics Laboratory
30 School of Plant Sciences, iPlant Collaborative
31 Department of Biology
32 IVF - Institute of Vegetables and Flowers
33 Division of Biological Sciences
34 Southern Cross Plant Science
35 School of Plant Biology
36 Laboratory for Epigenetics and Environment
Karine Labadie
Adriana A. Alberti
Imen Mestiri
  • Fonction : Auteur
  • PersonId : 1361469
  • IdRef : 166299901
Smahane Chalabi
Mei Guan
  • Fonction : Auteur
Patrick Wincker
Jörg Tost
  • Fonction : Auteur
  • PersonId : 912248
Andrew G. Sharpe
  • Fonction : Auteur
  • PersonId : 971018
Chunyun Guan
  • Fonction : Auteur

Résumé

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
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Dates et versions

hal-01208705 , version 1 (02-10-2015)

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Citer

Boulos Chalhoub, France Denoeud, Shengyi Liu, Isobel A. P. Parkin, Haibao Tang, et al.. Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome. Science, 2014, 345 (6199), pp.950-953. ⟨10.1126/science.1253435⟩. ⟨hal-01208705⟩
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