An even "newer" animal phylogeny
An even "newer" animal phylogeny
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DOI：
10.1002/bies.20842
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发表时间：
2008-11-01
期刊：
影响因子：
4
通讯作者：
Schierwater, Bernd
中科院分区：
文献类型：
--
作者：
DeSalle, Rob;Schierwater, Bernd
后生动物是一个伟大的单系生物类群。它们包括几个主要的生物体群，根据它们的解剖结构很容易识别。这些主要类群包括：两侧对称的动物、刺胞动物、海绵动物、栉水母动物和目前只有一个物种的门-扁平动物门。近两个世纪以来，人们一直试图将这些主要群体的关系系统化，并确定这些群体内部的关系。由于各集团之间和内部缺乏解决办法，许多尝试都导致了挫折。其他的尝试导致了“一种新的动物遗传学”。Dunn等人的一项研究((1))使用表达序列标签（EST）方法获得高通量大系统发育矩阵，呈现了“甚至更新的”动物系统发育。这项研究有两个主要方面应该引起一般生物界的兴趣。首先，作者用来产生他们的系统发育假说的方法需要仔细检查。其次，动物类群在其结果树中的关系也促使进一步的讨论。BioEssays 30：1043-1047，2008. (C)2008 Wiley Periodicals，Inc.
Metazoa are one of the great monophyletic groups of organisms. They comprise several major groups of organisms readily recognizable based on their anatomy. These major groups include the Bilateria (animals with bilateral symmetry), Cnidaria (jellyfish, corals and other closely related animals), Porifera (sponges), Ctenophores (comb jellies) and a phylum currently made up of a single species, the Placozoa. Attempts to systematize the relationships of these major groups as well as to determine relationships within the groups have been made for nearly two centuries. Many of the attempts have led to frustration, because of a lack of resolution between and within groups. Other attempts have led to "a new animal phylogeny". Now, a study by Dunn et al.,((1)) using the expresssed sequence tag (EST) approach to obtaining high-throughput large phylogenetic matrices, presents an "even newer" animal phylogeny. There are two major aspects of this study that should be of interest to the general biological community. First, the methods used by the authors to generate their phylogenetic hypotheses call for close examination. Second, the relationships of animal taxa in their resultant trees also prompt further discussion. BioEssays 30:1043-1047, 2008. (C) 2008 Wiley Periodicals, Inc.