| 用18SrRNA序列探讨8种绿藻分子系统发育 |
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| 引用本文： | 张耀东,沈颂东,林阿朋,张劲.用18SrRNA序列探讨8种绿藻分子系统发育[J].大连水产学院学报,2009,24(1):76-78. |
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| 作者姓名： | 张耀东 沈颂东 林阿朋 张劲 |
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| 作者单位： | 苏州大学,医学部基础医学与生物科学学院,江苏,苏州,215123 |
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| 基金项目： | 江苏省海洋生物技术重点建设实验室开放课题 |
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| 摘 要： | 测定了宽礁膜Monostroma latissimum、浒苔Enteromorpha prolifera、孔石莼Ulvapertusa的18SrRNA基因序列，并与肠浒苔Eintestinalis、穿孔石莼U.fenesrtata、石莼U.lactuca、礁膜M.nitidum和格氏礁膜Mottostroma grevillei5种已知的大型海洋绿藻的同一基因序列合并进行比较，分析了核苷酸序列差异和碱基替换特点，并构建系统发生树。结果表明：浒苔与肠浒苔之间的Kimura双参数距离大于浒苔与石莼属3个物种之间的Kimura双参数距离；用UPGMA法和MP法构建的系统树基本一致，在构建的系统发生树中，浒苔与石莼属物种聚为一类，表现出与石莼属物种更近的亲缘关系。
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| 关 键 词： | 石莼属 浒苔属 礁膜属 18S rRNA 序列变异 系统发育 |
Phylogenetic relationships among the 8 species of Chlorophyta by 18S rRNA sequences |
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| ZHANG Yao-dong,SHEN Song-dong,LIN A-peng,ZHANG Jin.Phylogenetic relationships among the 8 species of Chlorophyta by 18S rRNA sequences[J].Journal of Dalian Fisheries University,2009,24(1):76-78. |
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| Authors: | ZHANG Yao-dong SHEN Song-dong LIN A-peng ZHANG Jin |
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| Institution: | ZHANG Yao-dong,SHEN Song-dong,LIN A-peng,ZHANG Jin (Medical College of Soochow University,Suzhou 215123,China) |
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| Abstract: | The 18S rRNA genes were sequenced from green algae Ulva pertusa,Enteromorpha prolifera and Monostroma latissimum and compared with other algae E.intestinalis,U.fenesrtata,U.lactuca,M.nitidum,and M.grevillei to evaluate the basic composition and sequence divergence among their sequences in the phylogenetic tree.There was more Kimura 2-parameter distance between E.prolifera and E.intestinalis than those among E.prolifera and three Ulva species.The phylogenetic trees in UPGMA and MP manners were almost identic... |
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| Keywords: | 18SrRNA |
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