A complex recombination pattern in the genome of allotetraploid Brassica napus as revealed by a high-density genetic map.
A complex recombination pattern in the genome of allotetraploid Brassica napus as revealed by a high-density genetic map.
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高密度遗传图谱揭示异源四倍体甘蓝型油菜基因组的复杂重组模式
DOI：
10.1371/journal.pone.0109910
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Zhou Y
中科院分区：
文献类型：
--
作者：
Cai G;Yang Q;Yi B;Fan C;Edwards D;Batley J;Zhou Y
多倍体在植物进化中起着至关重要的作用。甘蓝型油菜（Brassica napus，2n = 38，AACC）是芸苔属中最重要的油料作物，是由其祖先种B杂交后通过染色体自然加倍而产生的异源四倍体。芜菁（2n = 20，AA）和B.甘蓝（2n = 18，CC）。更好地理解B之间的进化关系。napus和B. rapa，B.甘蓝以及与这三个物种具有共同祖先的拟南芥，将提供关于异源多倍体的产生和进化的有价值的信息。基于单核苷酸多态性（SNP）和简单重复序列（SSR）标记构建的高密度遗传图谱，我们对B进行了比较基因组分析。甘蓝型油菜与拟南芥及其祖先种B. rapa和B.甘蓝属植物基于B的共线关系。rapa和B. B区有一棵甘蓝。甘蓝型油菜遗传图谱，B.甘蓝型油菜基因组由B染色体的骨架成分组成，占70.1%。rapa和B.在甘蓝中，有17.7%的序列来自A-和C-基因组之间同源染色体之间的相互易位，3.6%的序列来自基因组内和基因组间非同源染色体之间的相互易位。因此，目前的研究提供了异源四倍体B的形成和进化的见解。油菜基因组，这将允许更准确地从B转移基因组信息。rapa，B.甘蓝和拟南芥为B.油菜。
Polyploidy plays a crucial role in plant evolution. Brassica napus (2n = 38, AACC), the most important oil crop in the Brassica genus, is an allotetraploid that originated through natural doubling of chromosomes after the hybridization of its progenitor species, B. rapa (2n = 20, AA) and B. oleracea (2n = 18, CC). A better understanding of the evolutionary relationship between B. napus and B. rapa, B. oleracea, as well as Arabidopsis, which has a common ancestor with these three species, will provide valuable information about the generation and evolution of allopolyploidy. Based on a high-density genetic map with single nucleotide polymorphism (SNP) and simple sequence repeat (SSR) markers, we performed a comparative genomic analysis of B. napus with Arabidopsis and its progenitor species B. rapa and B. oleracea. Based on the collinear relationship of B. rapa and B. oleracea in the B. napus genetic map, the B. napus genome was found to consist of 70.1% of the skeleton components of the chromosomes of B. rapa and B. oleracea, with 17.7% of sequences derived from reciprocal translocation between homoeologous chromosomes between the A- and C-genome and 3.6% of sequences derived from reciprocal translocation between non-homologous chromosomes at both intra- and inter-genomic levels. The current study thus provides insights into the formation and evolution of the allotetraploid B. napus genome, which will allow for more accurate transfer of genomic information from B. rapa, B. oleracea and Arabidopsis to B. napus.
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影响因子：
4.4
作者：
Delourme R;Falentin C;Fomeju BF;Boillot M;Lassalle G;André I;Duarte J;Gauthier V;Lucante N;Marty A;Pauchon M;Pichon JP;Ribière N;Trotoux G;Blanchard P;Rivière N;Martinant JP;Pauquet J
通讯作者：
Pauquet J
影响因子：
4.2
作者：
Ge, Xian-Hong;Wang, Jing;Li, Zai-Yun
通讯作者：
Li, Zai-Yun
通过拟南芥和芸苔属植物比较作图鉴定甘蓝型油菜种子重量 QTL 候选基因
影响因子：
2.9
作者：
Cai G;Yang Q;Yang Q;Zhao Z;Chen H;Wu J;Fan C;Zhou Y
通讯作者：
Zhou Y
影响因子：
5.4
作者：
Jiang, Congcong;Ramchiary, Nirala;Meng, Jinling
通讯作者：
Meng, Jinling
影响因子：
3.7
作者：
Hu Z;Hua W;Huang S;Yang H;Zhan G;Wang X;Liu G;Wang H
通讯作者：
Wang H