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

doi:10.1126/science.1253435

CORC > 中国农业科学院 > 蔬菜花卉研究所

	Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome
	Chalhoub, Boulos 1; Denoeud, France 2,3,4; Liu, Shengyi 5; Parkin, Isobel A. P.6; Tang, Haibao 7,8; Wang, Xiyin 9,10; Chiquet, Julien 11; Belcram, Harry 1; Tong, Chaobo 5; Samans, Birgit 12
刊名	SCIENCE
	2014
卷号	345 期号:6199 页码:950-953
ISSN号	0036-8075
DOI	10.1126/science.1253435
通讯作者	Chalhoub, Boulos
英文摘要	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.
学科主题	Multidisciplinary Sciences ; MULTIDISCIPLINARY SCIENCES
语种	英语
出版者	AMER ASSOC ADVANCEMENT SCIENCE
WOS记录号	WOS:000340524700051
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/101825]
专题	蔬菜花卉研究所
作者单位	1.Univ Evry Val dEssone, Inst Natl Rech Agron INRA, Unite Rech Genom Vegetale, UMR1165, F-91057 Evry, France 2.Commissariat Energie Atom CEA, Inst Genom IG, F-91057 Evry, France 3.Univ Evry Val dEssone, UMR 8030, F-91057 Evry, France 4.Ctr Natl Rech Sci CNRS, UMR 8030, Evry, France 5.Chinese Acad Agr Sci, Key Lab Biol & Genet Improvement Oil Crops, Minist Agr Peoples Republ China, Oil Crops Res Inst, Wuhan 430062, Peoples R China 6.Agr & Agri Food Canada, Saskatoon, SK S7N 0X2, Canada 7.J Craig Venter Inst, Rockville, MD 20850 USA 8.Fujian Agr & Forestry Univ, Ctr Genom & Biotechnol, Fuzhou 350002, Fujian Province, Peoples R China 9.Univ Georgia, Plant Genome Mapping Lab, Athens, GA 30602 USA 10.Hebei United Univ, Sch Life Sci, Ctr Genom & Computat Biol, Tangshan 063000, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Chalhoub, Boulos,Denoeud, France,Liu, Shengyi,et al. Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome[J]. SCIENCE,2014,345(6199):950-953.
APA	Chalhoub, Boulos.,Denoeud, France.,Liu, Shengyi.,Parkin, Isobel A. P..,Tang, Haibao.,...&Wincker, Patrick.(2014).Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome.SCIENCE,345(6199),950-953.
MLA	Chalhoub, Boulos,et al."Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome".SCIENCE 345.6199(2014):950-953.