| 万年青Ls-RRNA 5′端核苷酸序列及进化意义 |
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| 引用本文： | 屈良鹄,余小强,洪德元,鲁迎青.万年青Ls-RRNA 5′端核苷酸序列及进化意义[J].中国科学院研究生院学报,1990,28(6):425-429. |
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| 作者姓名： | 屈良鹄 余小强 洪德元 鲁迎青 |
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| 摘 要： | 本工作准确测定了万年青Rohdea japonica(Thunb．)Roth Ls-rRNA 5'端347个
核苷酸序列。以该序列与其他五种被子植物及一种红藻已发表的序列为基础构造的系统树与
一般所接受的植物分类系统十分吻合，而且说明这一方法对被子植物不同科、属之间的差异有
良好的分辨率。我们的分析结果还表明，万年青与禾本科之间的差异很大，它们的分歧可能发生在单子叶植物起源的早期。
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| 关 键 词： | 万年青 rRNA 核苷酸序列 系统学 |
Ls-RRNA 5′ Nucleotide Sequence of Rohdea japonica (Liliaceae) and its Evolutionary Significance |
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| Qu Liang-Hu,Yu Xiao-Qiang,Hong De-Yuan,Lu Ying-Qing.Ls-RRNA 5′ Nucleotide Sequence of Rohdea japonica (Liliaceae) and its Evolutionary Significance[J].Journal of the Graduate School of the Chinese Academy of Sciences,1990,28(6):425-429. |
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| Authors: | Qu Liang-Hu Yu Xiao-Qiang Hong De-Yuan Lu Ying-Qing |
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| Abstract: | The sequence of Ls-rRNA 5' terminal 347 nucleotides of Rohdea japonica (Thunb.)
Roth has been precisely determined. A phylogenetic tree constructed based on the rRNA
nucleotide sequences of this and five other angiosperm species and an algal species (Porphyri-
dium purpureum) is in accordance with the taxonomical system generally accepted. The result
indicates that this method is of a high resolution for revealing differences and relationships am-
ong families and genera. It is also shown by our result that the difference between Rohdea and
the Poaceae is greater than that between the Solanaceae and the Brassicaceae. Therefore, it may
be considered that the divergence between these two groups took place at early stage of evolu-tion of monocotyledons. |
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| Keywords: | Rohdea japonica (Thunb ) Roth rRNA nucleotide sequence systematics |
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