| 缘管浒苔5.8SrDNA及其转录间隔区的序列测定及分析 |
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| 引用本文： | 郑明刚,臧家业,张进兴,孙修勤. 缘管浒苔5.8SrDNA及其转录间隔区的序列测定及分析[J]. 海洋科学进展, 2010, 28(1) |
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| 作者姓名： | 郑明刚 臧家业 张进兴 孙修勤 |
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| 作者单位： | 国家海洋局,第一海洋研究所,山东,青岛,266061 |
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| 基金项目： | 国家海洋局第一海洋研究所基本科研业务费专项资金项目——PNA芯片在青岛近海赤潮藻及浒苔快速检测中的应用研究(GY02-2008G45) |
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| 摘 要： | 利用PCR扩增、克隆和测序的方法对青岛市红岛虾池生长的缘管浒苔(Enteromorpha linza)的5.8S rD-NA及其转录间隔区ITS序列进行了分析,并依据ITS序列构建了浒苔属不同种之间的进化树。结果表明,获得了核糖体DNA完整的ITS和5.8S rDNA序列,ITS1为195 bp,5.8S rDNA为155 bp,ITS2为184 bp,总长度GC含量为63%。缘管浒苔与浒苔和曲浒苔的序列差异百分率较小,分别为2.4%和4.6%,与(U.olivascens)的序列差异百分率最大,为16.7%。Kimura-2参数遗传距离结果表明缘管浒苔和浒苔的遗传进化关系较近。
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| 关 键 词： | 缘管浒苔 ITS序列 序列分析 系统关系 |
Determination and Analysis of the Internal Transcribed Spacer Sequence of Enteromorpha linza |
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| ZHENG Ming-gang,ZANG Jia-ye,ZHANG Jin-xing,SUN Xiu-qin. Determination and Analysis of the Internal Transcribed Spacer Sequence of Enteromorpha linza[J]. Advances in Marine Science, 2010, 28(1) |
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| Authors: | ZHENG Ming-gang ZANG Jia-ye ZHANG Jin-xing SUN Xiu-qin |
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| Affiliation: | First Institute of Oceanography;SOA;Qingdao 266061;China |
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| Abstract: | Enteromorpha linza is sampled from the shrimp ponds at Hongdao of Qingdao.Its 5.8S rDNA and internal transcribed spacer sequence(ITS) is analyzed.The PCR technology is used for the sequence amplification,clone,and determination.A phylogenetic tree of the various species is set up from the ITS sequences.It is learnt from the results that a complete ITS and 5.8S rDNA sequence is obtained,including 195 bp of ITS1,155 bp of 5.8 SrDNA,and 184 bp of ITS2.Its GC content is 63% of the total seqnence.The difference ... |
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| Keywords: | Enteromorpha linza ITS sequences sequence analysis molecular phylogeny |
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