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.
Journal article
Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome
Science, Vol.345(6199), pp.950-953
2014
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Source: InCites
Abstract
Details
- Title
- Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome
- Creators
- Boulos Chalhoub - Université d’Evry Val d’EssoneFrance Denoeud - Commissariat à l’Energie Atomique, EvryShengyi Liu - Chinese Academy of Agricultural SciencesIsobel AP Parkin - Agriculture and Agri-Food CanadaHaibao Tang - J. Craig Venter InstituteXiyin Wang - University of GeorgiaJulien Chiquet - Université d’Evry val d’EssonneHarry Belcram - Université d’Evry Val d’EssoneChaobo Tong - Chinese Academy of Agricultural SciencesBirgit Samans - Justus Liebig Universitat GiessenMargot Correa - Commissariat à l’Energie Atomique, EvryCorinne Da Silva - Commissariat à l’Energie Atomique, EvryJeremy Just - Université d’Evry Val d’EssoneCyril Falentin - Institut de Génétique, Environnement et Protection des Plantes (IGEPP)Chu Shin Koh - National Research Council CanadaIsabelle Le Clainche - Université d’Evry Val d’EssoneMaria Bernard - Commissariat à l’Energie Atomique, EvryPascal Bento - Commissariat à l’Energie Atomique, EvryBenjamin Noel - Commissariat à l’Energie Atomique, EvryKarine Labadie - Commissariat à l’Energie Atomique, EvryAdriana Alberti - Commissariat à l’Energie Atomique, EvryMathieu Charles - INRA, Etude du Polymorphisme des Génomes VégétauxDominique Arnaud - Université d’Evry Val d’EssoneHui Guo - University of GeorgiaChristian Daviaud - Laboratory for Epigenetics and Environment, Centre National de GénotypageSalman Alamery - University of QueenslandKamel Jabbari - Université d’Evry Val d’EssoneMeixia Zhao - Purdue UniversityPatrick P Edger - University of California - BerkeleyHouda Chelaifa - Université d’Evry Val d’EssoneDavid Tack - University of British ColumbiaGilles Lassalle - INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP)Imen Mestiri - Université d’Evry Val d’EssoneNicolas Schnel - INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP)Marie-Christine Le Paslier - INRA, Etude du Polymorphisme des Génomes VégétauxGuangyi Fan - Beijing Genome Institute–ShenzhenVictor Renault - Fondation Jean Dausset–Centre d’Étude du Polymorphisme HumainPhilipp E Bayer - University of QueenslandAgnieszka A Golicz - University of QueenslandSahana Manoli - University of QueenslandTae-Ho Lee - University of GeorgiaVinh Ha Dinh Thi - Université d’Evry Val d’EssoneSmahane Chalabi - Université d’Evry Val d’EssoneQiong Hu - Chinese Academy of Agricultural SciencesChuchuan Fan - Huazhong Agricultural UniversityReece Tollenaere - University of QueenslandYunhai Lu - Université d’Evry Val d’EssoneChristophe Battail - Commissariat à l’Energie Atomique (CEA)Jinxiong Shen - Huazhong Agricultural UniversityChristine HD Sidebottom - National Research Council CanadaXinfa Wang - Chinese Academy of Agricultural SciencesAurélie Canaguier - Université d’Evry Val d’EssoneAurélie Chauveau - INRA, Etude du Polymorphisme des Génomes VégétauxAurélie Bérard - INRA, Etude du Polymorphisme des Génomes VégétauxGwenaëlle Deniot - INRA, Institut de Génétique, Environnement et Protection des Plantes (IGEPP)Mei Guan - Hunan Agricultural UniversityZhongsong Liu - Hunan Agricultural UniversityFengming Sun - Beijing Genome Institute–ShenzhenYong Pyo Lim - Chungnam National UniversityEric Lyons - University of ArizonaChristopher D Town - J. Craig Venter InstituteIan Bancroft - University of YorkXiaowu Wang - Chinese Academy of Agricultural SciencesJinling Meng - Huazhong Agricultural UniversityJianxin Ma - Purdue UniversityJ Chris Pires - University of MissouriGraham J King - Southern Cross UniversityDominique Brunel - INRA, Etude du Polymorphisme des Génomes VégétauxRégine 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 ColumbiaJacqueline Batley - University of QueenslandRod J Snowdon - Justus Liebig UniversityJorg Tost - Laboratory for Epigenetics and Environment, Centre National de GénotypageDavid Edwards - University of QueenslandYongming Zhou - Huazhong Agricultural UniversityWei Hua - Chinese Academy of Agricultural SciencesAndrew G Sharpe - National Research Council CanadaAndrew H Paterson - University of GeorgiaChunyun Guan - Hunan Agricultural UniversityPatrick Wincker - Commissariat à l’Energie Atomique (CEA), Evry
- Publication Details
- Science, Vol.345(6199), pp.950-953
- Identifiers
- 1767; 991012820637602368
- Academic Unit
- Southern Cross Plant Science; Faculty of Science and Engineering; Science
- Resource Type
- Journal article