Plant genome archaeology:: evidence for conserved ancestral chromosome segments in dicotyledonous plant species
Plant genome archaeology:: evidence for conserved ancestral chromosome segments in dicotyledonous plant species
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DOI：
10.1046/j.1467-7652.2003.00009.x
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发表时间：
2003-03-01
影响因子：
13.8
通讯作者：
Barnes, S
中科院分区：
文献类型：
--
作者：
Dominguez, I;Graziano, E;Barnes, S
我们已经开发了遗传图谱，表达序列标签（EST）的基础上，是同源的拟南芥基因，在四个双子叶作物植物物种从不同的家庭。将这些图谱与拟南芥的物理图谱进行比较，揭示了在双子叶植物的整个进化过程中似乎一直保守的共同基因组片段。在分析的四种作物中，这些片段占拟南芥基因组的16%至33%。我们的研究结果扩展了以前只在植物家族中观察到的同线性模式，并表明模式物种的结构和功能信息将至少部分适用于具有大基因组的作物。
We have developed genetic maps, based on expressed sequence tags (ESTs) that are homologous to Arabidopsis genes, in four dicotyledonous crop plant species from different families. A comparison of these maps with the physical map of Arabidopsis reveals common genome segments that appear to have been conserved throughout the evolution of the dicots. In the four crop species analysed these segments comprise between 16 and 33% of the Arabidopsis genome. Our findings extend the synteny patterns previously observed only within plant families, and indicate that structural and functional information from the model species will be, at least in part, applicable in crop plants with large genomes.