Evolutionary diversity of eukaryotic small-subunit rRNA genes.
Evolutionary diversity of eukaryotic small-subunit rRNA genes.
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DOI：
10.1073/pnas.83.5.1383
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发表时间：
1986-03
影响因子：
11.1
通讯作者：
M. Sogin;H. Elwood;J. Gunderson
中科院分区：
文献类型：
--
作者：
M. Sogin;H. Elwood;J. Gunderson
测定了鞭毛原生生物纤细裸藻和布氏锥虫的小亚基rRNA基因序列，并与其他真核生物进行了比较。构建了真核生物系统发育树，其中最早分支的是E。股薄肌急诊股薄肌的分化远远早于一个大规模进化辐射的时期，该时期产生了植物、动物、真菌和某些原生生物群体，如纤毛虫和棘阿米巴。在这个真核生物的集合中的遗传多样性被认为超过了真细菌或古细菌血统中所显示的遗传多样性。
The small-subunit rRNA gene sequences of the flagellated protists Euglena gracilis and Trypanosoma brucei were determined and compared to those of other eukaryotes. A phylogenetic tree was constructed in which the earliest branching among the eukaryotes is represented by E. gracilis. The E. gracilis divergence far antedates a period of massive evolutionary radiation that gave rise to the plants, animals, fungi, and certain groups of protists such as ciliates and the acanthamoebae. The genetic diversity in this collection of eukaryotes is seen to exceed that displayed within either the eubacterial or the archaebacterial lines of descent.