Cnidarians and ancestral genetic complexity in the animal kingdom

被引：90

作者：

Miller, DJ

Ball, EE

Technau, U

机构：

[1] James Cook Univ N Queensland, Comparat Genom Ctr, Townsville, Qld 4811, Australia

[2] Australian Natl Univ, Res Sch Biol Sci, Ctr Mol Genet Dev, Canberra, ACT 2601, Australia

[3] Australian Natl Univ, Res Sch Biol Sci, Mol Genet & Evolut Grp, Canberra, ACT 2601, Australia

[4] Sars Int Ctr Marine Mol Biol, N-5008 Bergen, Norway

来源：

TRENDS IN GENETICS | 2005年 / 21卷 / 10期

关键词：

D O I：

10.1016/j.tig.2005.08.002

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Eleven of the twelve recognized wingless (Wnt) subfamilies are represented in the sea anemone Nematostelia vectensis, indicating that this developmentally important gene family was already fully diversified in the common ancestor of 'higher' animals. In deuterostomes, although duplications have occurred, no novel subfamilies of Wnts have evolved. By contrast, the protostomes Drosophila and Caenorhabditis have lost half of the ancestral Writs. This pattern - loss of genes from an ancestrally complex state - might be more important in animal evolution than previously recognized.

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页码：536 / 539

页数：4

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