The small-subunit ribosomal RNA gene sequences from the hypotrichous ciliates Oxytricha nova and Stylonychia pustulata.
The small-subunit ribosomal RNA gene sequences from the hypotrichous ciliates Oxytricha nova and Stylonychia pustulata.
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DOI：
10.1093/oxfordjournals.molbev.a040362
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发表时间：
1985-09
影响因子：
10.7
通讯作者：
H. Elwood;Gary J sen;M. Sogin
中科院分区：
文献类型：
--
作者：
H. Elwood;Gary J sen;M. Sogin
我们已经确定了完整的核苷酸序列的纤毛虫原生动物Stylonychia pustulata和Oxytricha nova的小亚基核糖体RNA基因。这些序列是同源的，足够相似，这些生物体必须密切相关。从几种真核生物小亚基核糖体RNA的比较中推断出，纤毛虫与真核生物世系的分歧与植物、动物和真菌的辐射一致。这种辐射之前是黏菌，盘基网柄菌的分歧。
We have determined the complete nucleotide sequence of the small-subunit ribosomal RNA genes for the ciliate protozoans Stylonychia pustulata and Oxytricha nova. The sequences are homologous and sufficiently similar that these organisms must be closely related. In a phylogeny inferred from comparisons of several eukaryotic small-subunit ribosomal RNAs, the divergence of the ciliates from the eukaryotic line of descent is seen to coincide with the radiation of the plants, the animals, and the fungi. This radiation is preceded by the divergence of the slime mold, Dictyostelium discoideum.