The mitochondrial genome of Phoronis architecta -: Comparisons demonstrate that phoronids are Lophotrochozoan protostomes
The mitochondrial genome of Phoronis architecta -: Comparisons demonstrate that phoronids are Lophotrochozoan protostomes
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DOI：
10.1093/molbev/msh011
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发表时间：
2004-01-01
影响因子：
10.7
通讯作者：
Boore, JL
中科院分区：
文献类型：
--
作者：
Helfenbein, KG;Boore, JL
正确重建动物门之间的关系是从基因组水平到形态水平解释动物进化模式的核心。这不仅适用于种类较多的门，而且适用于较小的类群。我们在这里报告的几乎完整的DNA序列的线粒体基因组的Phoronis architecta，它有一个基因排列非常相似的原口动物，石鳖Katharina被衣。对这些分类群的基因排列和推断的氨基酸序列沿着三种腕足动物和其他不同动物的基因排列和推断的氨基酸序列的进化分析，强烈支持这样的假设，即lophophorates是包括软体动物和环节动物的大组的一部分，即，Lophotrochozoa-并坚定地驳斥了他们是后口动物的替代品。
The proper reconstruction of the relationships among the animal phyla is central to interpreting patterns of animal evolution from the genomic level to the morphological level. This is true not only of the more speciose phyla but also of smaller groups. We report here the nearly complete DNA sequence of the mitochondrial genome of the phoronid Phoronis architecta, which has a gene arrangement remarkably similar to that of a protostome animal, the chiton Katharina tunicata. Evolutionary analysis of both gene arrangements and inferred amino acid sequences of these taxa, along with those of three brachiopods and other diverse animals, strongly supports the hypothesis that lophophorates are part of the large group that includes mollusks and annelids-i.e., the Lophotrochozoa-and solidly refutes the alternative of their being deuterostomes.