MOLECULAR PHYLOGENY OF THE ANIMAL KINGDOM
MOLECULAR PHYLOGENY OF THE ANIMAL KINGDOM
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DOI：
10.1126/science.3277277
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发表时间：
1988-02-12
期刊：
影响因子：
56.9
通讯作者：
RAFF, RA
中科院分区：
文献类型：
--
作者：
FIELD, KG;OLSEN, GJ;RAFF, RA
核糖体 RNA 的快速测序方法被应用于解决后生动物之间的进化关系。根据 18 个核糖体 RNA 序列的成对比较确定的进化距离，使用 10 个动物门的 22 个类别的代表来推断系统发育关系。经典的真后生动物分为两类。刺胞动物起源于原生生物祖先，与第二组双边对称动物不同。在两侧对称动物中，早期的分裂产生了扁形动物（扁虫）和腔皮动物谱系。因此，腔皮动物是单系的，它们迅速分为四类：脊索动物、棘皮动物、节肢动物和真腔皮原口动物。
A rapid sequencing method for ribosomal RNA was applied to the resolution of evolutionary relationships among Metazoa. Representatives of 22 classes in 10 animal phyla were used to infer phylogenetic relationships, based on evolutionary distances determined from pairwise comparisons of the 18Sribosomal RNA sequences. The classical Eumetazoa are divided into two groups. Cnidarians arose from a protist ancestry different from the second group, the Bilateria. Within the Bilateria, an early split gave rise to Platyhelminthes (flatworms) and the coelomate lineage. Coelomates are thus monophyletic, and they radiated rapidly into four groups: chordates, echinoderms, arthropods, and eucoelomate protostomes.