A PCR survey of Hox genes in the myzostomid Myzostoma cirriferum

被引：13
作者：
Bleidorn, Christoph [1 ]
Lanterbecq, Deborah [2 ]
Eeckhaut, Igor [2 ]
Tiedemann, Ralph [1 ]
机构：
[1] Univ Potsdam, Unit Evolutionary Biol Systemat Zool, Inst Biochem & Biol, D-14476 Potsdam, Germany
[2] Univ Mons, Marine Biol Lab, B-7000 Mons, Belgium
来源：
DEVELOPMENT GENES AND EVOLUTION | 2009年 / 219卷 / 04期
关键词：
Myzostomida; Annelida; Hox genes; Platyhelminthes; Phylogeny; EVOLUTION; EXPRESSION; FLATWORMS; CLUSTERS; TAXA;
D O I：
10.1007/s00427-009-0282-z
中图分类号：
Q2 [细胞生物学];
学科分类号：
071009 ; 090102 ;
摘要：
Using degenerate primers, we were able to identify seven Hox genes for the myzostomid Myzostoma cirriferum. The recovered fragments belong to anterior class (Mci_lab, Mci_pb), central class (Mci_Dfd, Mci_Lox5, Mci_Antp, Mci_Lox4), and posterior class (Mci_Post2) paralog groups. Orthology assignment was verified by phylogenetic analyses and presence of diagnostic regions in the homeodomain as well as flanking regions. The presence of Lox5, Lox4, and Post2 supports the inclusion of Myzostomida within Lophotrochozoa. We found signature residues within flanking regions of Lox5, which are also found in annelids, but not in Platyhelminthes. As such the available Hox genes data of myzostomids support an annelid relationship.
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收藏
页码：211 / 216
页数：6
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