Origin and evolution of organisms as deduced from 5S ribosomal RNA sequences.
Origin and evolution of organisms as deduced from 5S ribosomal RNA sequences.
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从 5S 核糖体 RNA 序列推论生物体的起源和进化。
DOI：
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发表时间：
1987
影响因子：
10.7
通讯作者：
Syozo Osawat
中科院分区：
文献类型：
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作者：
H. Hori;Syozo Osawat
大多数主要生物体类群的系统发育树已根据现有的 352 个 5S 核糖体 RNA 序列构建而成。这棵树表明，有几个主要的真细菌类群在进化的早期阶段发生了分化。真细菌出现后，后细菌（=古细菌）和真核生物分离。在真核生物中，首先出现的是红藻；后来，破囊壶菌（Proctista）、子囊菌（酵母）、绿色植物（绿藻和陆地植物）、“黄藻”（褐藻、硅藻和金藻）、担子菌（蘑菇和锈菌）、粘菌和水霉菌、各种原生动物和动物大约按这个顺序出现。光合真核生物的三种主要类型——即红藻（=叶绿素 a 组）、绿色植物（叶绿素 a + b 组）和黄藻（叶绿素 a + c）——彼此之间存在远亲关系。其他光合单细胞原生动物——例如蓝藻门（Chl. a）、裸藻门（Chl. a + b）、隐藻门（Chl. a + c）和甲藻门（Chl. a + c）——似乎在黄藻出现后不久就分离了。
A phylogenetic tree of most of the major groups of organisms has been constructed from the 352 5S ribosomal RNA sequences now available. The tree suggests that there are several major groups of eubacteria that diverged during the early stages of their evolution. Metabacteria (= archaebacteria) and eukaryotes separated after the emergence of eubacteria. Among eukaryotes, red algae emerged first; and, later, thraustochytrids (a Proctista group), ascomycetes (yeast), green plants (green algae and land plants), "yellow algae" (brown algae, diatoms, and chrysophyte algae), basidiomycetes (mushrooms and rusts), slime- and water molds, various protozoans, and animals emerged, approximately in that order. Three major types of photosynthetic eukaryotes--i.e., red algae (= Chlorophyll a group), green plants (Chl. a + b group) and yellow algae (Chl. a + c)--are remotely related to one another. Other photosynthetic unicellular protozoans--such as Cyanophora (Chl. a), Euglenophyta (Chl. a + b), Cryptophyta (Chl. a + c), and Dinophyta (Chl. a + c)--seem to have separated shortly after the emergence of the yellow algae.
影响因子：
10.7
作者：
H. Elwood;Gary J sen;M. Sogin
通讯作者：
H. Elwood;Gary J sen;M. Sogin