文献类型： 外文期刊
第一作者： Chalhoub, Boulos
作者： Chalhoub, Boulos;Belcram, Harry;Just, Jeremy;Le Clainche, Isabelle;Arnaud, Dominique;Jabbari, Kamel;Chelaifa, Houda;Mestiri, Imen;Vinh Ha Dinh Thi;Chalabi, Smahane;Lu, Yunhai;Canaguier, Aurelie;Denoeud, France;Correa, Margot;Da Silva, Corinne;Bernard, Maria;Bento, Pascal;Noel, Benjamin;Labadie, Karine;Alberti, Adriana;Battail, Christophe;Aury, Jean-Marc;Wincker, Patrick;Denoeud, France;Wincker, Patrick;Denoeud, France;Wincker, Patrick;Liu, Shengyi;Tong, Chaobo;Hu, Qiong;Wang, Xinfa;Hua, Wei;Parkin, Isobel A. P.;Tang, Haibao;Town, Christopher D.;Tang, Haibao;Wang, Xiyin;Guo, Hui;Lee, Tae-Ho;Paterson, Andrew H.;Wang, Xiyin;Chiquet, Julien;Samans, Birgit;Snowdon, Rod J.;Falentin, Cyril;Lassalle, Gilles;Schnel, Nicolas;Deniot, Gwenaelle;Delourme, Regine;Renard, Michel;Koh, Chu Shin;Sidebottom, Christine H. D.;Sharpe, Andrew G.;Charles, Mathieu;Le Paslier, Marie-Christine;Chauveau, Aurelie;Berard, Aurelie;Brunel, Dominique;Daviaud, Christian;Tost, Jorg;Al
作者机构：
期刊名称：SCIENCE （ 影响因子：47.728； 五年影响因子：51.433 ）
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页码：
收录情况： SCI
摘要： Oilseed rape (Brassica napus L.) was formed similar to 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 72x 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 A(n) and C-n 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.
分类号： N
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