黄瓜MGT基因的鉴定和特征分析
Identification and Characterization of Cucumber MGT Genes

DOI: 10.12677/HJAS.2019.911152, PP. 1084-1090

Keywords: 黄瓜，镁离子转运载体，结构，进化，顺式元件
Cucumber (Cucumis sativus L.), Magnesium Transporter, Structure, Phylogeny, Cis-Element

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Abstract:

本文从黄瓜基因组中鉴定出7个镁离子转运载体MGT基因，并对这些基因的基因组分布、基因结构、系统进化和顺式元件进行了系统分析。结果显示，黄瓜的MGT基因不均匀地分布在基因组中，它们的基因结构差异较大，但都存在一个CorA类镁离子载体蛋白结构域。在进化上这些基因分为三个不同的类群，在它们的上游序列中存在多个顺式元件，能够应答不同的激素和逆境信号，且不同MGT成员间顺式元件有所不同。这些结果预示黄瓜的MGT基因在功能上具有一定的相似性，但又有所分化。
In this text, 7 magnesium transporter genes (MGT) were identified in cucumber genome. Also their genome distribution, gene structure, phylogeny, and cis-elements were systemically analyzed. The results showed that, the cucumber MGT genes unevenly distributed in genome, and their gene structures were different from each other. However, their encoded putative proteins all have a conserved CorA magnesium transporter like domain. As for their phylogeny, they were divided into three subgroups. In their upstream region, there were multiple cis-elements responsive to different hormones and environmental stimuli. And the cis-element type and number of each cucumber MGT was some different. All these results implicated that cucumber MGT genes have similar but divergent roles.

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