暗紫红毛菜ITS序列的测定与分析  

Sequencing and Analysis of ITS Sequences of Bangia atropurpurea

作　　者：李峰[1] 冯佳[1] 谢树莲[1] 

机构地区：[1]山西大学生命科学学院,山西太原030006

出　　处：《安徽农业科学》2011年第9期5116-5117,共2页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(30970187)

摘　　要：[目的]对暗紫红毛菜rDNA内转录间隔区(ITS区)进行序列测定,为其系统发育研究提供新资料。[方法]以产于山西娘子关泉的一株暗紫红毛菜为材料,提取DNA,设计引物,进行PCR扩增,进而测定其ITS区基因序列。[结果]暗紫红毛菜与同科的少精紫菜ITS区同源性为75%,与条斑紫菜ITS区同源性为79%。[结论]ITS区序列进化速率相对较快,种类和地理分布的差异是其序列差异产生的原因。[Objective] To providing new data for phylogenesis of Bangia atropurpurea by the sequencing of internal transcribed spacer（ITS region） of rDNA.[Method] B.atropurpurea was collected from Niangziguan Spring in Shanxi,the DNA was extracted and the primers were designed for PCR amplification so as to obtain ITS gene sequence.[Result] The homology of ITS region between B.atropurpurea and Porphyra oligospermatangia was 75%,which was 79% between B.atropurpurea and P.yezoensis.[Conclusion] Compared with other genes,the ITS sequence had a greater evolution rate.The differences in classification and distribution resulted in the sequence diversity.

关 键 词：暗紫红毛菜 ITS1-5.8S RDNA-ITS2 序列测定 

分 类 号：Q941[生物学—植物学]