Is the evolution of Cnox-2 Hox/ParaHox genes "multicolored" and "polygenealogical?"

被引：14
|
作者：
Schierwater, B
Dellaporta, S
DeSalle, R
机构：
[1] TiHo Hannover, ITZ, D-30559 Hannover, Germany
[2] Yale Univ, New Haven, CT 06520 USA
[3] Amer Museum Nat Hist, Div Invertebrate Zool, New York, NY 10024 USA
来源：
MOLECULAR PHYLOGENETICS AND EVOLUTION | 2002年 / 24卷 / 03期
关键词：
D O I：
10.1016/S1055-7903(02)00238-5
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Understanding the evolution of metazoan bauplans is linked to understanding the evolution of Hox and ParaHox genes. At the base of metazoan radiation we see in both cases a quite confusing picture yet. Here Cnox-2 is one of the best studied diploblast Hox genes. Homologs of this gene are known from Placozoa and several Cnidaria. In those cases where full length gene sequences, or at least full length homeobox sequences, are available the relationship to Hox genes from triploblastic animals as well as the classification to Hox or ParaHox genes can be controversially discussed, The existing data on possible gene functions also reveal a quite heterogeneous picture. It seems conceivable that part of the "multicolored" picture relates to a "polygenealogical" origin of the Cnox-2 gene. (C) 2002 Elsevier Science (USA). All rights reserved.
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页码：374 / 378
页数：5
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