Developmental expression of the hemichordate otx ortholog

被引:51
作者
Harada, Y [1 ]
Okai, N
Taguchi, S
Tagawa, K
Humphreys, T
Satoh, N
机构
[1] Kyoto Univ, Grad Sch Sci, Dept Zool, Kyoto 6068502, Japan
[2] Univ Hawaii, Pacific Biomed Res Ctr, Kewalo Marine Lab, Honolulu, HI 96813 USA
基金
日本学术振兴会;
关键词
hemichordates; Otx; vegetal plate; ciliated band;
D O I
10.1016/S0925-4773(99)00279-8
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
The phylogenetic location of hemichordates is unique because they seem to fill an evolutionary gap between echinoderms and chordates. We report here characterization of Pf-otx, a hemichordate ortholog of otx, with its embryonic and larval expression pattern. Pf-otx is initially expressed in the vegetal plate of the blastula. Expression remains evident in the archenteron through gastrulation and then disappears. A new expression domain appears near the mouth along the preoral and postoral ciliated bands in the early tornaria larva. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:337 / 339
页数:3
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