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聚球藻hox1基因的克隆和序列分析 被引量:1

Cloning and Sequence Analysis of hox1 Gene from Synechococcus cedrorum
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摘要 本实验应用降落PCR方法从聚球藻Synechococcus cedrorum中扩增出717bp的hox1基因全序列,并与从Gen-Bank下载13个蓝藻hox1基因序列比较,用MEGA4.0进行序列同源性分析及蛋白结构特性分析。结果表明,Synecho-coccus cedrorum的hox1基因与聚球藻Synechococcus PCC7942和钝顶节旋藻Arthrospira platensis的hox1基因序列同源性分别为99.9%和99.2%,氨基酸序列同源性分别为99.6%和97.9%。还用邻接法和最大简约法构建了系统树并进行了聚类分析。 The complete hox1 gene including 717bp was cloned from Synechococcus cedrorum by using touchdown PCR technology.Homology analysis based on cyanobacteria hox1 gene showed that the similarity is 99.9% between Synechococcus cedrorum and Synechococcus PCC7942 and 99.2% between Synechococcus cedrorum and Arthrospira platensis.The similarity of deduced amino acid is 99.6%(between Synechococcus cedrorum and Synechococcus PCC7942) and 97.9%(between Synechococcus cedrorum and Arthrospira platensis) respectively.The phylogenetic relationships among eight cyanobacteria were constructed by the methods of neighbor-joining(NJ) and maximum parsimony(MP).
出处 《中国海洋大学学报(自然科学版)》 CAS CSCD 北大核心 2010年第S1期110-116,共7页 Periodical of Ocean University of China
基金 国家转基因生物新品种培育重大专项项目(2008ZX08001-004)资助
关键词 聚球藻 hox1基因 亚铁血红素氧化酶Ⅰ 聚类分析 Synechococcus hox1 gene heme oxygenase1 phylogenetic analysis
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参考文献26

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